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11 April 2026, Volume 67 Issue 4 Previous Issue   

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Comparison of 21 new late⁃season rice varieties under continuous cropping conditions JIANG Wei, GONG Jun, CHAI Weidong, ZHENG Jianbin 2026, 67 (4):  821-824.  DOI: 10.16178/j.issn.0528-9017.20250067 Abstract ( 6 )   HTML ( 0 )   PDF (313KB) ( 9 )   To ensure the smooth implementation of the large-scale increase in rice yield action，Jiangshan City has actively carried out comparative experiments on new varieties of late-season rice for consecutive cultivation.To screen out suitable varieties for promotion and planting，and enrich the variety choices for large-scale planting entities， this study compared the production characteristics and yields of 21 new varieties of late-season rice for consecutive cultivation. The results showed that in terms of yield and growth period，6 varieties including Yongyou 7053，Yongyou 7860，Chunyou 167，and Huazhongyou 4916 generally performed better in terms of yield，which was higher than the control variety Yongyou 1540. Moreover，their growth periods were close to that of Yongyou 1540，and they had good field resistance，without lodging. Under the existing cultivation technology models in Jiangshan City，these varieties are suitable for promotion and planting. Figures and Tables | References | Related Articles | Metrics

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Effect of nutrient management on rice yield and nitrogen fertilizer absorption and utilization BAO Miaoqing, WU Lianghuan, HAN Kefeng 2026, 67 (4):  825-830.  DOI: 10.16178/j.issn.0528-9017.20250087 Abstract ( 6 )   HTML ( 0 )   PDF (715KB) ( 8 )   This study mainly focused on the soil nutrient and fertility conditions in the rice-planting region of Jinhua. Under the background of quantitative application of phosphorus fertilizer（P2O5 54 kg·hm-2）and potassium fertilizer（K2O 90 kg·hm-2），the effects of nutrient management on rice yield and nitrogen fertilizer absorption and utilization were systematically evaluated. Four treatments were established：no nitrogen fertilizer （PK），low nitrogen fertilizer （N1PK），medium nitrogen fertilizer（N2PK）and high nitrogen fertilizer（N3PK）with N application rates of 0，90，120，and 150 kg·hm-2，respectively. Results indicated that compared with PK and N3PK treatments，the rice yield significantly（p<0.05） increased in the N2PK treatment，reaching 9 204.60 kg·hm-2，which increased by 34.78% compared with PK treatment. Regarding N fertilizer absorption and utilization efficiency，the N2PK treatment showed significantly higher values compared with the N3PK treatment，with nitrogen fertilizer utilization rate，nitrogen fertilizer agronomic efficiency，and nitrogen fertilizer partial productivity being 65.00%，19.80 kg·kg-1 and 76.71 kg·kg-1，respectively. In terms of economic benefits，the N2PK treatment yielded the highest output value of 26 344.68 yuan·hm-2，representing an increase of 6 402.63 yuan·hm-2 compared with the PK treatment.In conclusion，under the background of quantitative application of phosphorus and potassium fertilizers，he medium nitrogen level treatment （N2PK） not only significantly increased rice yield and optimized the absorption and utilization efficiency of nitrogen fertilizer，but also brought the best economic benefits. This result provides an important theoretical basis and practical guidance for the rational use of nitrogen fertilizer in the rice-growing area of Jinhua. Figures and Tables | References | Related Articles | Metrics

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Effects of agricultural laser induction at seedling stage on growth and yield of rice LEI Yumeng, CHEN Lingyun, CHEN Pengyu, LI Zhitao, QI Xingjiang, CHENG Feng, YANG Han, QI Yetong 2026, 67 (4):  831-837.  DOI: 10.16178/j.issn.0528-9017.20250770 Abstract ( 7 )   HTML ( 0 )   PDF (1607KB) ( 8 )   Agricultural laser，as a novel supplementary lighting technology in agriculture，has shown considerable potential in regulating crop growth and enhancing both quality and yield. To explore the effects of laser technology on the growth period and yield of rice，this study employed laser irradiation with red-to-blue ratios of 3∶1 and 1∶1 during the rice seedling stage. The seedlings were then transplanted into field plots，and growth indicators，key growth stages，and yield under different treatments were determined. The results showed that the 3∶1 red-to-blue laser treatment significantly promoted the growth of both early- and late-season rice seedlings and increased the seedling growth rate. After transplanting，the 3∶1 laser-treated group exhibited faster recovery，with the maturation period of both early- and late- season rice advancing by 2-3 days. After maturity，the number of effective panicles increased by 12.53%-13.33%，yield increased by 5.56%-13.37%，and no adverse effect was observed on the quality of glutinous rice. In conclusion，laser seedling cultivation with a 3∶1 red-to-blue ratio can effectively promote early maturation and yield increase in rice，demonstrating stable positive effects across different varieties and showing good potential for widespread application. Figures and Tables | References | Related Articles | Metrics

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Analysis of regional trials of glutinous rice varieties in Zhejiang Province from 2019 to 2023 PAN Yueyun, YANG Yujiao, DING Zhengquan, SHI Yang, HUANG Haixiang 2026, 67 (4):  838-841.  DOI: 10.16178/j.issn.0528-9017.20240969 Abstract ( 6 )   HTML ( 0 )   PDF (391KB) ( 11 )   This article provided a brief analysis of glutinous rice varieties in the regional trials of new rice varieties in Zhejiang Province from 2019 to 2023. The results showed that a total of 27 glutinous rice varieties were tested 38 times in Zhejiang Province over a period of 5 years. As of 2023，only 4 of the new rice variety regional trials had completed the approval process in Zhejiang Province. Most of the tested varieties had a single dominant trait such as high yield，disease resistance，high quality or a combination of two dominant traits，and almost none had comprehensive dominant traits such as high yield，high quality，and disease resistance. In the future，the breeding objectives of new glutinous rice varieties in Zhejiang Province should shift from focusing on single indicator such as high yield，high quality，and disease resistance to emphasizing comprehensive trait indicators such as high yield，high quality，and disease resistance. This study provided a reference value for the breeding and improvement of glutinous rice varieties. Figures and Tables | References | Related Articles | Metrics

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Genetic basis and stability analysis of high⁃yield and disease resistant wheat variety Xinmai 57 WANG Yinghong, LI Xiaohang, LI Yongzhen, MA Huaping, DONG Yun 2026, 67 (4):  842-845.  DOI: 10.16178/j.issn.0528-9017.20240833 Abstract ( 6 )   HTML ( 0 )   PDF (358KB) ( 8 )   This article elaborated on the breeding process of high-yield and disease resistant wheat variety Xinmai 57，analyzed its genetic basis. The high stability coefficient method was used to analyze the stability of its yield，and the coefficient of variation method was used to analyze the three factors affecting the yield of Xinmai 57. The results indicated that in the three-year trials，the yield of Xinmai 57 was higher than the control variety Bainong 207，indicating high yield. The high stability coefficient was 6.86 percentage points higher than the control variety，indicating good yield stability. Among the three factors affecting the yield，the coefficient of variation of grain number per ear was lower than that of ear number and thousand-grain weight. The grain number per ear was relatively stable and not easily affected by environmental factors. Natural conditions such as regional differences and soil fertility had a relatively large impact on the ear number and thousand-grain weight of Xinmai 57. Therefore，suitable climate conditions and soil fertility are more likely to achieve higher ear number and thousand-grain weight，thereby achieving higher yield. Xinmai 57 has great potential for high yield. Figures and Tables | References | Related Articles | Metrics

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Effects of wide and narrow row planting and exogenous brassinolide on agronomic traits and yield of fresh maize under high temperature in Zhejiang Province CHENG Yixin, YUAN Meng, LI Linhe, ZHAO Fucheng, WANG Yang, ZHAO Guangwu, HE Junguang 2026, 67 (4):  846-851.  DOI: 10.16178/j.issn.0528-9017.20240497 Abstract ( 7 )   HTML ( 0 )   PDF (450KB) ( 8 )   To meet the annual demand for fresh maize in the Yangtze River Delta region，this study selected leading maize varieties Zhenuoyu 16 and Zhetian 11 in Zhejiang Province as materials，and studied the effects of wide and narrow row planting and spraying brassinolide during the silking stage on the agronomic traits and yield of fresh maize under high temperature conditions in summer at two stages under different soil fertility conditions. The results showed that compared with planting at equal row spacing（row spacing of 70 cm），planting in wide and narrow rows（wide row spacing of 70 cm and narrow row spacing of 50 cm）increased the ear diameter，single ear weight，and yield of the two varieties at the second stage. Compared with spraying water，exogenous application of 0.05 g·L-1 brassinolide during the silking stage increased the ear length，single ear weight，and yield of Zhenuoyu 16，as well as the yield of Zhetian 11. At the same time，it increased the contents of crude starch，amylose，and amylopectin in the seeds of the two varieties at the second stage. This study suggests that both wide and narrow row planting and spraying brassinolide during the silking stage can effectively alleviate the impact of high temperature on the yield of fresh maize，and are effective technical means for summer cultivation of fresh maize in Zhejiang Province. Figures and Tables | References | Related Articles | Metrics

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Effects of blend ratio of controlled⁃release urea and normal urea on agronomic traits and yield of summer maize LI Tingting, SHEN Yanhui, YUE Yongxiang, NI Weiqian, SHI Yulong, GUO Wusong, JIA Ruifeng, XIAO Chenxing, GAO Luyang, CHEN Hongkun 2026, 67 (4):  852-858.  DOI: 10.16178/j.issn.0528-9017.20240941 Abstract ( 4 )   HTML ( 0 )   PDF (484KB) ( 6 )   To explore the optimal blending ratio of controlled-release urea（CRU）and normal urea in maize production，a field experiment was conducted to investigate the effects of different CRU blending ratios（0，30%，50%，70%，and 100%）on the agronomic traits and yield of summer maize. The results showed that the treatment with 70% CRU significantly （p<0.05） increased stem diameter，stem diameter coefficient，kernels per row，kernels per ear，100-kernel weight，yield， nitrogen partial factor productivity，soil alkali-hydrolyzable nitrogen content，and economic benefits. Among these，the yield and net profit increased significantly by 17.08% and 20.60%，respectively，compared with the normal urea alone treatment. When the CRU blending ratio reached 71.2%，the theoretical yield peaked at 9 510.02 kg·hm-2，with an economic benefit of 17 631.9 yuan?hm-2. Correlation analysis indicated that soil alkali-hydrolyzable nitrogen content，stem diameter，effective ear length，kernels per row，rows per ear，kernels per ear，and 100-kernel weight were all significantly positively correlated with yield. In conclusion，blending CRU with normal urea enhanced soil nitrogen supply capacity during the later growth stages of maize，optimized agronomic traits，improved maize resistance to downfall，and ultimately increased yield and economic benefits，with an optimal blending ratio of 71.2%. Figures and Tables | References | Related Articles | Metrics

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Regulatory effects of Yuhuangjin chemical control on plant traits of high⁃protein maize variety Xundan 678 LI Yuchao, LI Changjian 2026, 67 (4):  859-864.  DOI: 10.16178/j.issn.0528-9017.20250816 Abstract ( 2 )   HTML ( 0 )   PDF (492KB) ( 5 )   Rational use of chemical control agents is one of the key measures to increase maize yield per unit area. Using the high-protein maize variety Xundan 678 as the test material，this study investigated the effects of applying different concentrations of Yuhuangjin at different leaf stages on plant growth traits and yield. The results showed that after the application of Yuhuangjin，plant height and ear height of Xundan 678 decreased，with two-year average reductions of 7.7%-14.8% and 18.1%-18.6%，respectively. Relative chlorophyll content showed the greatest increase（5.5%）under the medium concentration treatment at the 9-leaf stage. Stem puncture strength was improved under all treatments，and the earlier the treatment stage，the greater the potential for enhancement. The number of adventitious roots increased most significantly under high concentration treatment. The medium concentration treatment achieved the highest average yield increase，while the high concentration treatment at the 11-leaf stage resulted in yield reduction. Figures and Tables | References | Related Articles | Metrics

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Analysis of volatile components in different types of tobacco extracts HU Ziyun 2026, 67 (4):  865-871.  DOI: 10.16178/j.issn.0528-9017.20250833 Abstract ( 5 )   HTML ( 0 )   PDF (1064KB) ( 6 )   In order to explore the differences in volatile components of different types of tobacco extracts，headspace solid-phase microextraction gas chromatography-mass spectrometry（HS-SPME-GC-MS）was used to analyze the volatile components in three types of extracts：burley tobacco，spice tobacco，and Yuyan tobacco. The key differential volatile components were screened by orthogonal partial least squares discriminant analysis （OPLS-DA）. The results showed that a total of 111 volatile components were detected in the three tobacco extracts，with heterocyclic，hydrocarbon，and ketone compounds accounting for over 90% of the total content. There were 33 volatile components in three types of tobacco extracts，and there were significant differences in the types and contents of volatile components in different types of tobacco extracts. The OPLS-DA results indicated that benzyl alcohol，phenylacetaldehyde，α-damascenone，solanone，4，7，9-megastigmatrien-3-one B，4，7，9-megastigmatrien-3-one D，and neophytadiene were key differential volatile components in different types of tobacco extracts，which can be used to distinguish different types of tobacco extracts to some extent. This study can provide a theoretical reference for optimizing the aroma characteristics of different types of tobacco extracts. Figures and Tables | References | Related Articles | Metrics

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Correlation between physical properties of tobacco leaves and lamina structure WANG Yimin, GUO Jun, ZHU Zhiyin, PENG Dong, LIU Guosheng, SONG Zhiyong, LE Jiajie, JIANG Pinglin, LUO Xianhua, SHUAI Ming, JIAN Panfeng, GUO Yun, WU Yunjie, WEN Yongcai 2026, 67 (4):  872-877.  DOI: 10.16178/j.issn.0528-9017.20240696 Abstract ( 4 )   HTML ( 0 )   PDF (502KB) ( 6 )   In order to improve lamina structure，tobacco leaf samples were analyzed by factor analysis and cluster analysis，to study the relationship between the physical properties of flue-cured tobacco leaves and lamina structure. The results showed that the overall trend of leaf density，softness，shear force，puncture force，adhesion force and thickness decreased gradually from upper leaves to lower leaves，and the mechanical properties of tobacco leaves from different producing areas and different grades were quite different. The leaf rate of >25.40 mm×25.40 mm and >12.70 mm×12.70 mm was significantly （p<0.05） or extremely significantly （p<0.01） correlated with thickness， leaf density， softness， shear force， adhesion， tensile force and puncture force， while the leaf rate of <2.36 mm×2.36 mm was negatively correlated with puncture force. The rate of stem content in leaves was significantly or extremely significantly positively correlated with the length，width，and stem content rate，and was extremely significantly negatively correlated with the tensile force and puncture force. Other physical indicators had no significant correlation with the lamina structure. The results of cluster analysis showed that tobacco leaf samples could be divided into 4 categories，and the comprehensive physical characteristics of the same category were relatively close. By setting different equipment parameters and grouping processing according to the category，the tobacco leaf crushing process could be reduced，and the lamina structure economic indexes of tobacco leaves with different physical characteristics were further optimized after beating and re-drying. Figures and Tables | References | Related Articles | Metrics

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VIGS mediated NtHD20 gene silencing promotes tobacco glandular trichome pilogenesis XU Mingkai, GAO Xin, WANG Dong, LU Yutong, LI Hongtao, CHEN Mengqi, DUAN Weidong, SHEN Hongtao, XU Shixiao 2026, 67 (4):  878-883.  DOI: 10.16178/j.issn.0528-9017.20250792 Abstract ( 5 )   HTML ( 0 )   PDF (778KB) ( 6 )   This study used the wild-type strain 8306（WT），homozygous edited strain（KD），and overexpressed strain（OE）as materials to investigate the effects of virus-induced gene silencing（VIGS）targeting the NtHD20 gene on the glandular trichome phenotype，glandular trichome density，content of glandular trichome secretions，and expression levels of key biosynthesis genes of glandular trichome secretions in all tobacco lines. The results showed that silencing the NtHD20 gene resulted in an extremely significant（p<0.01）increase in leaf glandular trichome density，a significant（p<0.05）increase in content of glandular trichome secretions，and expression levels of key biosynthesis genes of glandular trichome secretions in all tobacco strains. Silencing NtHD20 with VIGS technology can promote the development of tobacco glandular trichome and increase the content of cembratrieneols substances. It is speculated that the NtHD20 gene may have a negative regulatory effect on the development of the tobacco glandular trichome，providing a new direction for improving the tobacco glandular trichome. Figures and Tables | References | Related Articles | Metrics

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Combined application of nitrogen，phosphorus，and potassium fertilizers on yield and nutrient uptake of sorghum-rape rotation ZHOU Yifan, LI Zhiqi, CAI Guoxue, LI Siguang, PENG Qing, ZHAO Jingkun, WANG Jie, SHI Xiaojun 2026, 67 (4):  884-892.  DOI: 10.16178/j.issn.0528-9017.20240811 Abstract ( 3 )   HTML ( 0 )   PDF (572KB) ( 9 )   To clarify the fertilizer requirements of sorghum-rape rotation in the southwest region，achieve crop yield increase and efficiency improvement，and scientific fertilization，this study conducted field fertilizer efficiency experiments on sorghum-rape rotation for two consecutive years. Five treatments were set up：no fertilization（CK），no nitrogen fertilizer（PK），no phosphorus fertilizer（NK），no potassium fertilizer（NP），and combined application of nitrogen phosphorus and potassium fertilizer（NPK）. The crop yield，yield composition，dry matter accumulation，and soil physicochemical properties were measured under different treatments. The nutrient accumulation and utilization rate of fertilizer were calculated under different treatments，and the effects of different fertilization treatments on the yield and nutrient uptake of sorghum-rape rotation were analyzed. The results showed that under different fertilization treatments，the stem biomass and grain yield of sorghum and rape were the highest in the NPK treatment，followed by NP，NK，PK，and CK. The biggest difference in yield composition among different fertilizer treatments for sorghum was the panicle weight. Compared with CK，the panicle weight of sorghum in the other treatments was significantly （p<0.05） higher by 55.57% to 378.72%. For rape，the biggest difference in yield components among different fertilizer treatments was the number of effective siliques per plant. Compared with CK，the number of effective siliques per plant of rape in the treatments of NK，PK，NPK was significantly higher by 524.22% to 632.81%. Compared with other treatments，NPK treatment significantly increased the aboveground nitrogen，phosphorus，and potassium accumulation in sorghum and rape，with nitrogen accumulation showing the most significant improvement. Furthermore，NPK treatment had the highest annual fertilizer partial productivity，apparent utilization efficiency，and agronomic efficiency for both sorghum and rape. Compared with CK，the soil pH value significantly decreased and the organic matter content significantly increased under NPK treatment. In conclusion，combined application of nitrogen phosphorus and potassium fertilizer can increase the yield and yield composition，nutrient uptake，utilization rate of fertilizer，and soil organic matter content of sorghum and rape. It can also maintain the availability of soil nutrients at a higher level. The results of this study can provide scientific basis for understanding the nutrient requirements and rational fertilization in the sorghum-rape rotation in the southwest region. Figures and Tables | References | Related Articles | Metrics

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Evaluation of new rapeseed varieties and screening of high⁃yield and stress⁃resistant cultivars in Hangzhou region YING Jianping, MAO Wenlong, CHENG Dajun, CHEN Mingxiang, SHENTU Lanxin, SHI Yijun, XU Shouzeng 2026, 67 (4):  893-898.  DOI: 10.16178/j.issn.0528-9017.20250684 Abstract ( 6 )   HTML ( 0 )   PDF (409KB) ( 6 )   To screen high-quality，high-yielding，and stress-resistant rapeseed new varieties suitable for cultivation in Hangzhou and surrounding areas， a demonstration and evaluation trial of 18 new rapeseed varieties was conducted in the Hangzhou Raw Seed Growing Farm from 2023 to 2024. The growth period，growth traits，resistance，and yield traits were systematically investigated and comprehensively analyzed. The results showed that in terms of yield，Zheyou 51 achieved the highest yield of 208.86 kg per 667 m2，followed by Ningza 1858，Ningza 2010，and Jinyouza 9，all exceeding 160 kg per 667 m2 with yields of 166.97 kg，166.90 kg，and 162.70 kg，respectively，demonstrating excellent yield potential；Zhongyouza 41 yielded the lowest at only 109.61 kg per 667 m2. In terms of lodging resistance，7 varieties including Jinyouza 9 and Ganyouza 8 showed "straight" in the field，with strong lodging resistance；4 varieties including Huiyouza 097 showed "falling"，with poor lodging resistance. The incidence of sclerotinia and vira diseases in all tested varieties was 0，indicating outstanding disease resistance. Overall，Zheyou 51，Ningza 1858，and Ningza 2010 performed excellently in yield and stress resistance，and are recommended as priority varieties for rapeseed cultivation in Hangzhou and surrounding areas；Jinyouza 9，with its strong lodging resistance，can serve as an alternative variety for areas where lodging resistance is particularly required. Figures and Tables | References | Related Articles | Metrics

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Performance and evaluation of 10 early maturing short⁃duration rapeseed varieties MAO Wenlong, YING Jianping, CHU Sijie, SHEN Jianxun, LIU Tao, CHEN Mingxiang, LIU Yu 2026, 67 (4):  899-903.  DOI: 10.16178/j.issn.0528-9017.20250603 Abstract ( 5 )   HTML ( 0 )   PDF (452KB) ( 9 )   In response to the adjustment of agricultural planting systems and the growing demand for diversified production，increasing the land multiple cropping index is of great significance for ensuring grain and oil security. Therefore，the selection and promotion of early-maturing and short-duration rapeseed varieties have become essential. In this study，10 early-maturing short-duration rapeseed varieties were evaluated using a randomized block design. The experiment was conducted at a designated site under standardized planting conditions，and data on growth period，yield，resistance，and agronomic traits were collected. The results revealed considerable variation among the varieties in terms of phenology，growth period，yield，and resistance traits. For instance，Zheyouzao No.1 exhibited high yield，while Xiangyou 420 had the shortest growth period. This study provides a basis for the selection，promotion，and further improvement of early-maturing short-duration rapeseed varieties，and offering reference value for adapting to adjustments in agricultural cropping systems and ensuring grain and oil security. Figures and Tables | References | Related Articles | Metrics

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Genetic diversity of Leonurus japonicus germplasm resources and analysis and evaluation of their traits and quality LI Haishen, XU Lijun, LI Zhenfeng, XU Jianzhong, WANG Hengfei, HUANG Xuliang 2026, 67 (4):  904-915.  DOI: 10.16178/j.issn.0528-9017.20250141 Abstract ( 4 )   HTML ( 0 )   PDF (2331KB) ( 10 )   To explore the genetic relationship of Leonurus japonicus germplasm resources from different origins and their agronomic traits and medicinal quality performance，this study analyzed the diversity of 64 wild Leonurus japonicus germplasm resources from different origins through SRAP labeling，investigated the agronomic traits of Leonurus japonicus at different periods，and detected its characteristic components based on high performance liquid chromatography （HPLC）. The results showed that the genetic similarity coefficients of 64 wild germplasm resources were relatively high，but there was genetic differentiation among the germplasm resources，and the degree of genetic differentiation among populations showed a correlation with geographical distance. In addition，the quality of Leonurus japonicus varied greatly from region to region. However，the superior varieties selected in the current year could maintain their quality advantages in the following year. Besides，the agronomic traits and quality of Leonurus japonicus harvested in the current year had a certain correlation with the quality of Leonurus japonicus harvested in the early flowering stage of the following year，which can provide a reference for the quality identification and breeding of Leonurus japonicus. Figures and Tables | References | Related Articles | Metrics

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Study on the key components of edible quality of large grain fresh broad beans in Jiangsu and Zhejiang regions ZHU Zhengmei, SHI Limin, LYU Xuegao, XU Qiaoxian, ZHANG Feicui, LU Huabing 2026, 67 (4):  916-921.  DOI: 10.16178/j.issn.0528-9017.20240719 Abstract ( 3 )   HTML ( 0 )   PDF (416KB) ( 8 )   Using 14 varieties of large grain fresh broad beans promoted in Jiangsu and Zhejiang regions as materials，the chemical components and sensory scores related to their edible quality were determined，and correlation analysis and principal component analysis were conducted. The results showed that sensory evaluation of edible quality was positively correlated with multiple indicators such as grain crude protein and free amino acid content，and negatively correlated with grain crude fat，starch，tannin content，etc. Among them，the proportion of seed coat was significantly （p<0.01） negatively correlated with edible quality evaluation. Through principal component analysis，14 indicators were transformed into 5 independent principal components，and the first principal component mainly reflected lignin，crude protein，and free amino acids，hemicellulose and cellulose contents，which were the main factors affecting the quality of broad beans. Figures and Tables | References | Related Articles | Metrics

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Analysis of nutritional components in Lafei pumpkin XU Mingfei, ZHOU Qianqian, HUANG Yan, LU Chunlian 2026, 67 (4):  922-926.  DOI: 10.16178/j.issn.0528-9017.20250672 Abstract ( 4 )   HTML ( 0 )   PDF (393KB) ( 6 )   In order to gain a deeper understanding of the nutritional components of Lafei pumpkin，this article took Lafei pumpkin，Beibei pumpkin，and Miben pumpkin as research objects，and measured their nutritional components. The results showed that there were differences in the nutritional components among the three varieties of pumpkin，with soluble solids content ranging from 26.42% to 27.33%，soluble sugar content ranging from 2.62% to 4.84%，crude fiber content ranging from 1.15% to 1.79%，and amylose content ranging from 0.07% to 2.38%. Dry matter contents were 144.3-171.7 g·kg-1，starch contents were 21.8-47.1 g·kg-1，dietary fiber contents were 22.9-37.2 g·kg-1，fructose contents were 12.3-14.3 g·kg-1，protein contents were 10.9-22.1 g·kg-1，vitamin C contents were 161.3-288.2 mg·kg-1，vitamin E contents were 8.3-12.3 mg·kg-1，β-carotene contents were 3.3-5.8 mg·kg-1，and total content of six amino acids was 1.88-3.52 g·kg-1. Lafei pumpkin exhibited higher levels of soluble solids，starch，and fructose，at 27.33%，45.1 g·kg-1，and 13.7 g·kg-1，respectively. It was also rich in vitamins and essential amino acids. These results provide a basis for further development of Lafei pumpkin-related products. Figures and Tables | References | Related Articles | Metrics

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Effects of drip-fertigation with aerobic bio-digestion liquid fertilizer on yield and quality of pakchoi XI Hui, FU Yuan, GU Bin, LI Na 2026, 67 (4):  927-930.  DOI: 10.16178/j.issn.0528-9017.20240440 Abstract ( 5 )   HTML ( 0 )   PDF (354KB) ( 6 )   To achieve the objectives of harmless treatment，reduction，and resource utilization of food waste，this study used kitchen waste as raw material，which was processed through phase?change treatment integrated with enzymatic hydrolysis and microbial fermentation. The resulting liquid product was formulated into an aerobic bio-digestion liquid fertilizer by supplementing macronutrients and humic acid. The effect of this fertilizer on crop yield and quality was investigated using integrated drip-fertigation technology. The experiment was conducted with pakchoi as the test crop，with drip irrigation using clear water set as the control，and treatments including aerobic bio-digestion liquid fertilizer and conventional fertilization. The results showed that drip?fertigation with aerobic bio-digestion liquid fertilizer effectively promoted the growth of pakchoi，increased yield，and improved agronomic traits such as plant height and fresh weight per plant. Under this treatment，nitrate content was significantly reduced at the Yangdu experimental site，while no significant effect was observed at the Tonglu experimental site，and there was no significant influence on crude fiber content. In conclusion，drip application of aerobic bio-digestion liquid fertilizer demonstrated favorable ecological and economic benefits in pakchoi production. Figures and Tables | References | Related Articles | Metrics

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Adaptability study of the new muskmelon variety Tianduyinmi in southern Xinjiang Tuerdi Yimingjiang, ZHANG Donghai, WEI Junmei, WANG Wanrong, YAO Xiaoqin, SHAO Qinglong, SONG Wei 2026, 67 (4):  931-938.  DOI: 10.16178/j.issn.0528-9017.20250146 Abstract ( 3 )   HTML ( 0 )   PDF (682KB) ( 5 )   This experiment used the newly bred muskmelon variety Tianduyinmi（parent：F-ckbr×N-1712）and the local variety Kukebaire from southern Xinjiang as materials. The open-field "double-film small arch" flat bed cultivation method was adopted to conduct a comparative test on the plant growth and development，fruit traits，fruit quality，disease resistance，yield and economic benefits of the two varieties. The experimental results showed that the full growth period of Tianduyinmi was relatively short，reaching 103 days. During the ripening stage，the vine length of Tianduyinmi was significantly （p<0.05） higher than Kukebaire and its SPAD values during the flowering and melon expansion stages were significantly higher than those of Kukebaire. Additionally，Tianduyinmi had significantly more leaves and stem nodes during the fruit setting and melon expansion stages compared to Kukebaire. However，there were no significant differences in leaf area between the two varieties at various growth stages. Both varieties were crisp and sweet，with similar single melon weights. Nevertheless，the fruit diameter of Tianduyinmi was significantly larger than that of Kukebaire，and its central soluble solid content was also significantly higher. There were no significant differences between the two varieties in fruit shape index，edge soluble solid content，flesh thickness，and fruit firmness. In addition，Tianduyinmi exhibited better resistance to powdery mildew than Kukebaire. The yield of Tianduyinmi per 667 m2 was 2 432.22 kg，slightly higher than that of Kukebairi（2 345.51 kg）. However，the first-grade commercial fruit rate and the net profit per 667 m2 of Tianduyinmi were both higher than those of Kukebairi，at 40% and 3 601.66 yuan，respectively.In conclusion， the overall performance of Tianduyinmi is superior to that of Kukebaire， making it suitable for promotion in the southern Xinjiang region. Figures and Tables | References | Related Articles | Metrics

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Effects of different rootstocks on plant growth，quality and yield of graft-watermelon ZHANG Ning, ZHANG Shifa, WANG Bingliang, ZHANG Xuerong, LAN Shuzhen 2026, 67 (4):  939-942.  DOI: 10.16178/j.issn.0528-9017.20250064 Abstract ( 1 )   HTML ( 0 )   PDF (382KB) ( 5 )   In order to screen for Zhemi No. 8 watermelon rootstock varieties with good grafting affinity，high survival rate，and strong disease resistance，three varieties of rootstocks，including Lyuzhuangshi（gourd variety），Sizhuang No.7（interspecific hybrids between Cucurbita maxima and Cucurbita moschata），and Yezhuang No.1（wild watermelon），and the field experiment was conducted to determine the survival rate，Fusarium wilt disease incidence，fruit yield and quality，so as to evaluate the effects of different rootstocks on plant growth，quality and yield of graft-watermelon. It was found that there were certain differences among the three rootstock-scion combinations and non-grafted plant. Zhemi No.8 grated onto Sizhuang No.7 had the best performances：the survival rate was 98.5%，the incidence of Fusarium wilt was 1.33%，plot yield was 183.53 kg，the total soluble solid contents in the central and edge of fruit were 11.18% and 8.58%，respectively，the fruit quality score reached 87.09. Based on above results，Sizhuang No.7 was a good rootstock to graft with watermelon variety Zhemi No.8，suitable for demonstration and promotion in southwestern Zhejiang Province. Figures and Tables | References | Related Articles | Metrics

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Correlation between environmental factors and fruit growth of honey peach in Fenghua LI Luofei, LOU Anqi, SONG Xieqing, SUN Qinan, CHEN Miaojin 2026, 67 (4):  943-948.  DOI: 10.16178/j.issn.0528-9017.20250680 Abstract ( 1 )   HTML ( 0 )   PDF (473KB) ( 5 )   This study investigated the effect of environmental factors on fruit growth in two cultivated honey peach varieties，Hujingmilu and Fenghuayulu，in Fenghua. Based on monitoring of orchard environment and fruit morphology，Pearson correlation analysis was employed to establish quantitative relationships between absolute fruit growth and accumulation values of temperature，as well as relative fruit growth and accumulation values of humidity. The results indicated that the longitudinal，transverse，and lateral diameters of fruits in both varieties follow an S-shaped growth curve. The accumulation values of air temperature and soil temperature showed a significant（p<0.05）or extremely significant（p<0.01）positive correlation with the longitudinal，transverse，and lateral diameters of fruits，with soil temperature generally exhibiting higher correlation coefficients than air temperature. The effect of soil humidity displayed significant varietal heterogeneity，accumulation values of soil humidity after 20 days of hard core period was significantly or extremely significantly positively correlated with the relative values of longitudinal，transverse，and lateral diameters of Hujingmilu fruits，while Fenghuayulu fruits were insensitive to changes in humidity over the same period，reflecting differences in water use strategies and swelling rhythms between Hujingmilu and Fenghuayulu. This research provides a theoretical basis for differentiated cultivation and precise water regulation of honey peach varieties. Figures and Tables | References | Related Articles | Metrics

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Effect of different fruit bags on the fruit appearance quality of Sunshine Muscat grape ZHAO Zhiqiang, BIAN Fengxia, LIU Weiying, LI Dou, WANG Fuxia 2026, 67 (4):  949-952.  DOI: 10.16178/j.issn.0528-9017.20250160 Abstract ( 1 )   HTML ( 0 )   PDF (397KB) ( 7 )   This experiment used 6-year-old grafted Sunshine Muscat grapes as materials and conducted bagging treatment during the young fruit stage to explore the effects of four different fruit bags on fruit appearance quality. The results showed that compared with CK，the single grain weight significantly（p<0.05）increased by 6.4% and 8.2% treated with green fruit bags（M1）and three-color fruit bags（M4）. Compared with CK，the single ear weight increased by 4.3% and 7.4% after treatments with new semi-transparent fruit bag（M3）and three-color fruit bags（M4）. The M4 treatment had the highest single ear weight. Bagging treatments had no significant effect on the stem thickness. The hardness of the fruit peel treated with M4 was significantly higher than that of CK. Bagging treatments significantly increased the L* value and b* value，with M4 treatment showing the best effect. In summary，three-color fruit bags had a significant effect on improving appearance quality of Sunshine Muscat grapes. Figures and Tables | References | Related Articles | Metrics

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Application effect of biogas slurry on Shine Muscat grape REN Jiajia, CAO Dunqi 2026, 67 (4):  953-957.  DOI: 10.16178/j.issn.0528-9017.20250130 Abstract ( 2 )   HTML ( 0 )   PDF (413KB) ( 4 )   To achieve scientific utilization of biogas slurry in farmland and precise fertilization，the biogas slurry produced after sufficient fermentation in the anaerobic fermentation device was fed through an integrated water and fertilizer system and dripped on the experimental base of Shine Muscat grape. Four treatments were set up for the experiment：CK （conventional fertilization），and 3 biogas slurry substitution for chemical fertilizer treatments （T1， substitution ratio of 20%；T2，substitution ratio of 35%；T3，substitution ratio of 50%）. The results showed that compared with CK，T2 treatment significantly（p<0.05）increased the single ear weight and the total amount of free amino acid content in the fruits. In terms of soil physical and chemical properties，the T1 treatment could significantly enhance the content of soil organic matter and available phosphorus，incidating that reasonable reduction of chemical fertilizers combined with application of biogas slurry can achieve an improvement in the single ear weight and quality of Shine Muscat grape，while also improving soil quality. Figures and Tables | References | Related Articles | Metrics

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Effect of organic fertilizer replacing chemical fertilizer on the quality and soil physical and chemical properties of Myrica rubra YE Fang, WANG Linwei, SHEN Yimin, WU Yuyong, WANG Yuying 2026, 67 (4):  958-962.  DOI: 10.16178/j.issn.0528-9017.20250149 Abstract ( 4 )   HTML ( 0 )   PDF (510KB) ( 6 )   To investigate the effects of organic fertilizer replacing chemical fertilizers on the quality and soil physical and chemical properties of Myrica rubra，Myrica rubra cv. Dongkui was used as the test material，the single fruit weight，fruit shape，fruit quality，and soil nutrient content of Myrica rubra were compared under treatments of organic fertilizer+100% chemical fertilizer（T1），organic fertilizer+85% chemical fertilizer（T2），organic fertilizer+70% chemical fertilizer（T3），organic fertilizer+55% chemical fertilizer（T4），and 100% chemical fertilizer（T5）treatments. The results showed that compared with 100% chemical fertilizer treatment（T5），T2，T3，and T4 treatments significantly（p<0.05）increased the horizontal and vertical diameters，total sugar content，soluble solids content，and vitamin C content of Myrica rubra fruit. Compared with T5 treatment，T4 treatment significantly increased the soil pH value. In summary，replacing partial chemical fertilizers with organic fertilizers can improve soil conditions and enhance the fruit quality of Myrica rubra. Figures and Tables | References | Related Articles | Metrics

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Comprehensive evaluation on the ornamental value of 42 species of fern based on analytic hierarchy process HAN Mengmeng, SU Chunqing, LUO Xinwu, QIN Mi, GONG Yanzhang 2026, 67 (4):  963-969.  DOI: 10.16178/j.issn.0528-9017.20240960 Abstract ( 4 )   HTML ( 0 )   PDF (429KB) ( 8 )   Based on the fern resources collected and preserved in Shenzhen Fairy Lake Botanical Garden，the evaluation system was constructed using the analytic hierarchy process to comprehensively evaluate the ornamental value of 42 species of fern with potential for garden application. The results showed that among the primary indicators，leaves accounted for the largest weight，which was 46.73%，followed by habitat conditions（27.72%），rhizomes（16.01%），and spore sac group（9.54%）. Among the secondary indicators，leaf color，vigor，overall leaf morphology，and stem direction accounted for more than 10.00% of the total weight of the ornamental value of fern，which had a great influence on the evaluation results. Among them，the total weight of leaf color reached 19.98%，which was the key indicator affecting the ornamental value of fern. According to the indicator weights and scoring criteria，the 42 species of fern were comprehensively scored and divided into four levels：Level I（score>4.0）was for species with high ornamental value，totaling 7 species；Level Ⅱ（3.5<score≤4.0）was for species with relatively high ornamental value，totaling 11 species；Level Ⅲ（3.0<score≤3.5）was for species with average ornamental value，totaling 15 species；Level Ⅳ（score≤3.0）was for species with low ornamental value，totaling 9 species. In addition，the results of cluster analysis showed that seven Class I fern species，including Blechnum gibbum，Nephrolepis cordifolia，Sphaeropteris lepifera，Brainea insignis，Gymnosphaera henryi，Nephrolepis biserrata，and Alsophila gigantea，all grew well and performed outstandingly in the ornamental traits of their leaves and rhizomes，which had good prospects for garden application and could be developed and utilized on a large scale. Figures and Tables | References | Related Articles | Metrics

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Evaluation of the control effect of 5 different pesticides on tobacco Meloidogyne disease TANG Yongyu, CHEN Guofa, YUAN Jiangcheng, LI Guoping, WANG Yanni, LI Zilin, LUO Yingkun, LI Chengjie, HE Biao 2026, 67 (4):  970-975.  DOI: 10.16178/j.issn.0528-9017.20250237 Abstract ( 4 )   HTML ( 0 )   PDF (462KB) ( 6 )   To screen effective pesticides for controlling tobacco Meloidogyne disease，in this experiment，five varieties of pesticides，namely 25% abamectin·carbosulfan emulsion，11% abamectin·thiazole granule，1 billion spores·g-1Bacillus subtilis·Purpureocillium lilacinum powder，2.5 billion spores·g-1Verticillium chlamydosporiun，and 10 billion spores·g-1Bacillus firmus wettable powder，were applied to plots with severe Meloidogyne disease，and the field efficacy trials were carried out. The results showed that after treatment with 11% abamectin·thiazole granule for 45 and 90 days，the reduction rate of nematodes in the rhizosphere soil of tobacco plants was the highest（54.80% and 49.95%），the incidence rate was the lowest（2.41% and 6.11%），and the control effect was the most significant（84.14% and 82.31%）. Moreover，the agronomic traits of tobacco plants and the physical and chemical properties of rhizosphere soil were almost unaffected. Besides，the nematode reduction rate，incidence rate and control effect of tobacco rhizosphere soil treated with 2.5 billion spores·g-1Verticillium chlamydosporiun were only inferior to 11% abamectin·thiazole granule. In summary，among the five varieties of pesticides，11% abamectin·thiazole granule and 2.5 billion spores·g-1Verticillium chlamydosporiun had the best control effect on Meloidogyne disease，and the dosage does not affect the growth of tobacco plants and the physicochemical properties of rhizosphere soil，which can be used as insecticides for the prevention and control of Meloidogyne disease. Figures and Tables | References | Related Articles | Metrics

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Evaluation of contribution rate of plant protection to the prevention and control of wheat disease，pest，and weeds in Haiyan County，2024 LU Fang, SUN Xie, ZHU Xiaoqun, JIANG Chunyue 2026, 67 (4):  976-979.  DOI: 10.16178/j.issn.0528-9017.20250903 Abstract ( 3 )   HTML ( 0 )   PDF (315KB) ( 9 )   To objectively evaluate the role of plant protection in wheat production，a field experiment was conducted in Haiyan County in 2024. Seven treatments were established，including no disease control，no pest control，one-time disease control，strict disease and pest control，farmer self-initiated control，unified control，and a blank control（no control of any diseases or pests）. The control effectiveness and plant protection contribution rates for wheat diseases and pests were comprehensively assessed. The results showed that the plant protection contribution rates for the treatments of no disease control，no pest control，one-time disease control，strict control，farmer self-initiated control，and unified control were 9.23%，30.31%，10.57%，36.98%，26.91%，and 28.64%，respectively. Based on a weighted calculation incorporating the area proportions of each control treatment type，the overall plant protection contribution rate for wheat disease and pest control in Haiyan County was determined to be 28.01%. Figures and Tables | References | Related Articles | Metrics

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Preparation of high-efficiency antioxidant fluorescent sericin from silkworms CHEN Wenkai, ZHAO Hucheng, LIU Yanna 2026, 67 (4):  980-985.  DOI: 10.16178/j.issn.0528-9017.20250111 Abstract ( 2 )   HTML ( 0 )   PDF (1048KB) ( 8 )   In this study，the feeding method of silkworms was adopted，and the silk glands of domestic silkworms were used as bioreactors to explore the effects of carbon dots（CDs）on the fluorescence intensity and antioxidant performance of sericin protein. In this study，9 Fu×7 Xiang silkworm variety was used as the test material，and 4 treatments were set up，namely control（feeding common mulberry leaves），CDs-0.25%（feeding mulberry leaves containing 0.25% CDs），CDs-0.50%（feeding mulberry leaves containing 0.50% CDs），and CDs-0.75%（feeding mulberry leaves containing 0.75% CDs）. Starting from the second day of the fifth age，the food was continuously added for five days，and then the average growth rate，survival rate，quality indicators of silkworm cocoons，fluorescence intensity and antioxidant performance of sericin were determined. The results indicated that CDs could significantly（p<0.05）enhance the fluorescence intensity and antioxidant performance of sericin. The enhancement effect was closely related to the feeding dose，and CDs did not have an adverse effect on the growth of silkworms or the yield of silk. Under ultraviolet light，sericins from silkworms feeded with CDs showed a native bright blue fluorescence，especially in the CDs-0.5% group and the CDs-0.75% group. The antioxidant performance of sericin in the CDs-0.75% group was the strongest，at 19.16 U·mg-1，which was 86.56% higher than that in the control group（10.27 U·mg-1），indicating that feeding silkworms with mulberry leaves containing 0.75% CDs can enhance the fluorescence intensity and antioxidant performance of sericin from silkworms. The results of this study provide a theoretical reference for the high-quality production and application of sericin. Figures and Tables | References | Related Articles | Metrics

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Effects of maturity and storage conditions on physicochemical indicators of Eriobotrya japonica honey from Apis cerana HUANG Zhichu, SU Xiaoling, CHEN Daoyin, ZHAO Dongxu, LUO Guhui, NI Weicheng, TAO Junwei, CHEN Lin 2026, 67 (4):  986-992.  DOI: 10.16178/j.issn.0528-9017.20250124 Abstract ( 2 )   HTML ( 0 )   PDF (658KB) ( 7 )   In order to clarify the physicochemical indicators of Eriobotrya japonica honey from Apis cerana under different maturity and storage conditions，and to provide a basis for the harvesting and scientific storage of high-quality Eriobotrya japonica honey，this study comprehensively analyzed the physicochemical indicators of Eriobotrya japonica honey from Apis cerana under four storage conditions（light exposure at room temperature，light avoidance at room temperature，refrigeration，freezing），different maturity levels（unsealed honey and post-ripened honey），and different storage time. The results showed that with the increase of maturity，the moisture content and acidity significantly（p<0.05）decreased，and the post-ripening treatment significantly increased the glucose and fructose content. Under different storage conditions，amylase activity generally declined，and glucose and fructose content increased. Compared with storage at low-temperature，storage at room temperature led to greater variations in physicochemical indicators. Post-ripened honey exhibited a smaller range of variation in principal component space compared with unsealed honey，suggesting that post-ripening treatment may enhance honey stability. With prolonged storage，fully-sealed honey showed a significant increase in moisture content，acidity，5-hydroxymethylfurfural content，glucose and fructose content，a significant decrease in amylase activity and sucrose content. In summary，to maintain the quality and nutritional value of honey，it is recommended to harvest mature honey and store it at low-temperature（such as refrigeration or freezing），while avoiding prolonged storage at room temperature. Figures and Tables | References | Related Articles | Metrics

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Soil nutrient characteristics and fertility evaluation of tobacco⁃growing regions in Heilongjiang Province LI Hanwen, HUANG Qinchao, JIAO Yusheng, WANG Peng, ZHANG Yungui, LI Zhihong, LIU Qingli, WANG Ning, JIANG Yuzhou 2026, 67 (4):  993-998.  DOI: 10.16178/j.issn.0528-9017.20240531 Abstract ( 2 )   HTML ( 0 )   PDF (455KB) ( 10 )   In order to investigate the soil fertility status in the tobacco-growing regions of Heilongjiang Province and provide a reference basis for soil nutrient resource management，this study collected soil samples from 17 tobacco-growing regions in Heilongjiang Province. The evaluation indicators measured included pH value，and contents of organic matter，alkali-hydrolyzable nitrogen，available phosphorus，available potassium，water-soluble chlorine，and available zinc. The weight of each indicator was calculated through principal component analysis，and all indicators were normalized using a membership function. The soil fertility index（SFI） was then calculated and evaluated accordingly. The results show that the overall fertility level in the tobacco-growing regions of Heilongjiang Province is relatively high，with 71% of the samples classified as having high fertility and 29% as having medium fertility. Among them，Ning'an exhibited the highest fertility，with SFI of 0.791. The overall average SFI in Heilongjiang Province is 0.645，indicating a relatively high fertility level，classified as Grade Ⅱ（suitable）. The variation coefficients of the evaluation indicators ranged from 12.51% to 77.38%，with an average variation coefficient of 42.27%，indicating high variability. For the tobacco-growing regions in Heilongjiang Province，it is recommended to adjust soil pH value，control the application of organic and nitrogen fertilizers，appropriately reduce the use of potassium，phosphorus，and zinc fertilizers，and reasonably utilize chlorine fertilizers. Figures and Tables | References | Related Articles | Metrics

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Characteristics of cash crop straw biochars and their effects on soil cadmium availability ZOU Lina, LIU Tingting, LUO Xiahong, CHEN Changli, LI Shaocui, ZHU Guanlin, AN Xia 2026, 67 (4):  999-1005.  DOI: 10.16178/j.issn.0528-9017.20240923 Abstract ( 2 )   HTML ( 0 )   PDF (4369KB) ( 7 )   The purpose of this study was to investigate the characteristics of biochar derived from different cash crop straws and their effects on the availability of cadmium in soils，so as to provide theoretical basis and data support for the resource utilization of cash crop straw and the remediation of cadmium polluted soil. Sunflower，rape，cotton，corn，flax，jute，ramie and kenaf straw biochar were characterized by elemental analyzer，scanning electron microscope and Fourier transform infrared spectroscopy. A long-term soil culture experiment was conducted to study the effects of different cash crop straw biochar on cadmium availability and the long-term passivation of biochar. The results showed that the pores and surface roughness of biochar from different cash crop straw were different，and the specific surface areas of jute，kenaf and cotton straw biochar were higher. Different biochar had rich functional groups，especially oxygen-containing functional groups including hydroxyl（）and ester（）. Besides，the addition of cash crop straw biochar significantly （p<0.05） reduced the content of available cadmium in soil. Moreover，cash crop straw biochar had good long-term effect and stability on the passivation of cadmium，among which jute and ramie straw biochar had better effect. Figures and Tables | References | Related Articles | Metrics

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Effect of cotton straw returning to the field in arid areas on soil physical and chemical properties and cotton yield LIU Yingchun, ZHONG Dongdong, SHEN Chao, WANG Xiaoyan, LI Yonggang, LIU Shangmin, DONG Hegan 2026, 67 (4):  1006-1011.  DOI: 10.16178/j.issn.0528-9017.20250131 Abstract ( 4 )   HTML ( 0 )   PDF (462KB) ( 8 )   In this study，based on field positioning experiments conducted from 2022 to 2024，we explored the effects of straw returning to the field on the physical and chemical properties of cotton field soil and cotton yield in arid areas. Two treatments，namely straw returning to the field and straw removing from the field，were set up in the experiment in 2023 and 2024，respectively. The changes in soil bulk density，aggregate structure，nutrient content and cotton yield were analyzed. The results showed that straw returning to the field improved the physical structure of the soil and increased the stability of soil aggregates. Among them，the proportion of silt and clay aggregates with particle size <0.053 mm increased significantly（p<0.05）by 18.08 percentage points in 2024. Meanwhile，straw returning to the field（2024）significantly increased the contents of total nitrogen，total potassium，organic matter，alkali-hydrolysis nitrogen，and available phosphorus in the soil. In addition，the yield of cotton under the treatment of straw returning to the field was significantly increased by 10% to 11% compared with that under the treatment of straw removing from the field. The study provided a scientific basis for the sustainable development of cotton cultivation in arid areas，and also indicated that the technology of straw returning to the field had application value in improving soil quality and increasing crop yield. Figures and Tables | References | Related Articles | Metrics

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Effect of different straw returning treatments on crop yield and soil quality in rice⁃wheat rotation system JIANG Zhenghang, YING Shanshan, ZHU Yuezhong, XU Jiezhang, HUANG Zhangting 2026, 67 (4):  1012-1017.  DOI: 10.16178/j.issn.0528-9017.20240846 Abstract ( 4 )   HTML ( 1 )   PDF (476KB) ( 8 )   In order to clarify the ecological effects of straw returning to the soil and provide certain data support for optimizing straw returning technology，this experiment set up three treatments in the production area of rice-wheat rotation in Yongkang City，Zhejiang Province：no rice and wheat straw returning to the field，no rice straw returning to the field-full wheat straw returning to the field，and full rice and wheat straw returning to the field. The effects of different straw returning treatments on crop yield，soil fertility，and diseases，pests，and weeds damage were studied. Compared with the treatment of no rice and wheat straw returning to the field，the treatment of full rice and wheat straw returning to the field significantly（p<0.05）increased soil organic matter content，soil total nitrogen content and available phosphorus content by 16.61%，10.96% and 95.22%，respectively，which indicated that returning crop straw to the field effectively improved soil fertility，but it also exacerbated the occurrence of diseases，pests，and weeds damage. Compared with the treatment of full rice and wheat straw returning to the field，the treatment of no rice straw returning to the field-full wheat straw returning to the field had a smaller impact on crop yield and relatively fewer occurrences of diseases，pests，and weeds damage. Compared with the treatment of no rice and wheat straw returning to the field，the treatment of no rice straw returning to the field-full wheat straw returning to the field increased the soil total nitrogen content and promoted the formation of soil aggregates. In actual production，reducing the direct return of rice straw to the field，combined with certain field management measures，can promote the rational utilization of straw，optimize the return structure，and ensure crop yield while increasing soil organic matter content and improving soil structure. Figures and Tables | References | Related Articles | Metrics

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Application and degradation optimization of biodegradable mulch in Phaseolus vulgaris Linn production HU Yuan, DENG Jinhua, WANG Jie, SHI Linlin, LU Changying, WANG Haihou 2026, 67 (4):  1018-1023.  DOI: 10.16178/j.issn.0528-9017.20240825 Abstract ( 4 )   HTML ( 0 )   PDF (555KB) ( 8 )   To evaluate the application effects of biodegradable mulches in Phaseolus vulgaris Linn production in lower-middle reaches of the Yangtze River，a split-plot experimental design was adopted. The main plots included four treatments：PBAT mulch，PLA mulch，PE mulch，and CK（no mulch），while the subplots included three different colors of mulch：black，white，and silver-black. Additionally，a plate culture experiment was used to assess the degradation efficiency of Pseudomonas mendocina and cutinases on the biodegradable mulches. The results showed that mulch coverage significantly（p<0.05）increased the yield of Phaseolus vulgaris Linn，the average yields of Phaseolus vulgaris Linn for PLA，PBAT，and PE mulches were 11 236，11 137，and 10 841 kg·hm-2，respectively，while the yield for CK was only 8 954 kg·hm-2. Moreover，under the same type conditions，the yield of Phaseolus vulgaris Linn covered with white mulch was significantly lower than that covered with black and silver-black mulches，and the weed biomass under white mulch was significantly higher than that under black and silver-black mulches. Throughout the entire growth period of Phaseolus vulgaris Linn，the final degradation grade of PBAT and PLA mulches was 5-6，with a residual rate of 53.0%-62.4%. Pseudomonas mendocina and cutinases enhanced the degradation of PBAT and PLA mulches，with soil exposure rates of 33%-46% for Pseudomonas mendocina and 25%-35% for cutinases. Overall，the yield-increasing effect of PBAT and PLA mulches on Phaseolus vulgaris Linn was consistent with that of PE mulches，and they have preliminarily achieved the degradation target，possessing the potential for application and promotion in Phaseolus vulgaris Linn production in the lower-middle reaches of the Yangtze River. Figures and Tables | References | Related Articles | Metrics

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Topographic gradient differentiation and spatio⁃temporal evolution of ecological sensitivity in the Chongqing section of the Three Gorges Reservoir Area LI Hongrong, LI Jiao, SHAO Jing'an 2026, 67 (4):  1024-1034.  DOI: 10.16178/j.issn.0528-9017.20250645 Abstract ( 3 )   HTML ( 1 )   PDF (4625KB) ( 5 )   To scientifically identify ecologically vulnerable areas in the Chongqing section of the Three Gorges Reservoir Area，so as to promote ecological protection and sustainable development，based on the analytic hierarchy process-criteria importance through inter-criteria correlation method（AHP-CRITIC），the study constructed a four-dimensional evaluation system for soil erosion，rocky desertification，human activities and natural disasters，and analyzed the spatial and temporal evolution of ecological sensitivity from the perspective of topographic gradient from 2000 to 2020. The results show that soil erosion modulus （weight 27.25%） and land use pattern（weight 23.49%）are the dominant factors influencing ecological sensitivity；the ecological sensitivity from 2000 to 2020 shows an overall improvement（sensitivity index decreased by 0.18）with localized degradation（degraded area accounting for 9.66%）；the spatial distribution shows a pattern of "high in the northeast and low in the southwest"，with a continuous high-sensitivity zone formed in the northern region due to the overlapping of severe rocky desertification and natural disasters；the transfer of sensitivity grades shows a characteristic of "expansion at both ends and contraction in the middle"；in terms of topographic gradients，low altitude（0-400 m），gentle slope（<8 °），shallow cutting depth（<8 m），and low terrain position（levels 1-4）areas are hotspots of increasing sensitivity，while the 600-1 000 m elevation zone，15 °-25 ° slope zone，15-30 m cutting depth zone，and middle-low terrain positions are the core distribution areas of severe and extreme sensitivity；and finally，based on a comprehensive mountain ecological risk index，it is categorized into five sensitivity zones. The study provides a paradigm for ecological protection in the Yangtze River Economic Belt，serving as a concrete exploration of the "ecological priority and green development" concept，and provides a basis for ecological restoration of mountainous urban land space. Figures and Tables | References | Related Articles | Metrics

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The impact of digital village development on rural residents′ operational income ZHANG Kexin 2026, 67 (4):  1035-1044.  DOI: 10.16178/j.issn.0528-9017.20250354 Abstract ( 5 )   HTML ( 0 )   PDF (539KB) ( 9 )   Increasing the income of rural residents is a key aspect of addressing the issues related to agriculture，rural areas，and farmers，with operational income being a significant component of rural residents' income structure. In recent years，the development of digital village has expanded channels for rural residents to increase their income and achieve prosperity，offering new pathways for income growth. Based on agricultural and rural development data from 30 provinces in China between 2013 and 2022，this study employs the entropy weight method to measure and evaluate the comprehensive level of digital village development and explores the impact of digital village development on rural residents' operational income and its underlying mechanisms. The empirical results indicate that：1）The development of digital village significantly promotes the increase of rural residents' operational income；2）Digital village development enhances rural residents' operational income by boosting rural entrepreneurial activity and agricultural labor productivity；3）In regions with a smaller agricultural labor force，the promotional effect of digital village development on rural residents' operational income is more pronounced. Based on these findings，this study proposes recommendations such as strengthening digital infrastructure construction，enhancing support for rural entrepreneurship，promoting the digital transformation of agriculture，and formulating differentiated development strategies，with the aim of further unleashing the growth potential of digital village development for rural residents' operational income. Figures and Tables | References | Related Articles | Metrics

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The Zhejiang practice and experience of beautiful village construction SHEN Qixia, JIN Peihua 2026, 67 (4):  1045-1048.  DOI: 10.16178/j.issn.0528-9017.20260035 Abstract ( 5 )   HTML ( 0 )   PDF (362KB) ( 7 )   This paper systematically traces the four developmental stages of beautiful village construction in Zhejiang Province：the “initiation and incubation stage”， the “deepening and enhancement stage”， the “iteration and upgrading stage”， and the “creation of future villages”. Through systematic reform and innovation，the construction has achieved a comprehensive transformation：shifting from “environmental remediation” to “value transformation”；from “government-led” to “market-driven”；from “traditional management” to “smart governance”；and from “single-point demonstration” to “cluster-based linkage”. This exploration has forged a high-quality development path for rural ecological common prosperity with Chinese characteristics，offering significant insights for China′s comprehensive rural revitalization and the building of a beautiful China. References | Related Articles | Metrics

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Innovative practices and development directions in the classification and treatment of rural domestic waste in Zhejiang Province HU Huizhen, WANG Yongshang, YANG Fengyuan, ZHANG-MA Yunan, PAN Peng, WANG Anbang, LIN Zhen, XU Jinglei, WANG Jiawei 2026, 67 (4):  1049-1055.  DOI: 10.16178/j.issn.0528-9017.20250475 Abstract ( 5 )   HTML ( 0 )   PDF (602KB) ( 8 )   To systematically evaluate the effectiveness of classified disposal and resource utilization of rural domestic waste in Zhejiang Province，summarize practical experience and identify future development directions，this paper reviews the policy evolution and institutional framework of rural waste classification in Zhejiang. Based on field investigation，statistical analysis and case studies，a comprehensive study was conducted on 1 078 rural domestic waste resource utilization stations，focusing on construction scale，operational load，treatment modes and waste reduction performance. The results show that Zhejiang has basically established a province-wide classified disposal system for rural domestic waste，achieving nearly full coverage of administrative villages and maintaining a resource utilization rate of over 99%. A diversified treatment system dominated by rapid mechanical treatment，sunshine composting and anaerobic fermentation has been formed，with significant effects on waste reduction and resource recovery. However，problems such as insufficient accuracy of source separation，low operational load of some facilities，inadequate operation and maintenance funding，and imperfect treatment technologies and output utilization mechanisms still exist. Based on these findings，this paper proposes policy recommendations including strengthening organizational support，optimizing facility layout，improving technological pathways and promoting digital supervision，so as to enhance the long-term effectiveness of rural domestic waste classification systems. Figures and Tables | References | Related Articles | Metrics

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Analysis of the spatial spillover effect of the digital economy on the integration development of urban and rural areas in the Yangtze River Economic Belt YU Tingting, KONG Lingcheng, YANG Xiao 2026, 67 (4):  1056-1064.  DOI: 10.16178/j.issn.0528-9017.20240897 Abstract ( 4 )   HTML ( 0 )   PDF (534KB) ( 6 )   The digital economy is a crucial factor influencing the integration development of urban and rural areas. How to make better use of the digital economy to elevate the integration development level of urban and rural areas has emerged as an important topic of discussion with significant value. Taking the Yangtze River Economic Belt as an example，an evaluation index system for digital economy and integration development of urban and rural areas was constructed from multiple dimensions，and its development level was effectively measured through the entropy weight method. The spatial Durbin model was used to empirically test the spatial spillover effect of the digital economy on integration development of urban and rural areas in this economic belt. The results showed that，firstly，the digital economy had a promoting effect on the integration development level of urban and rural areas in the region；secondly，it positively influenced integration development of urban and rural areas outside the region through spatial spillover effects. Based on these insights，policy recommendations were proposed to enhance regional communication network infrastructure，establish a platform for digital collaborative development，and encourage proactive measures by government departments. Figures and Tables | References | Related Articles | Metrics

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The effects of individual characteristics and household endowments on farmers' choice of eco⁃friendly farming practices：evidence from 1 488 survey observations LIAO Cairong, ZHANG Rong, YU Hang, CHEN Meiqiu, LIU Zhixin 2026, 67 (4):  1065-1074.  DOI: 10.16178/j.issn.0528-9017.20240884 Abstract ( 5 )   HTML ( 0 )   PDF (520KB) ( 10 )   Farmers' eco-friendly farming practices are crucial for cultivated land quality and food security，and represent an inherent requirement for ecological civilization construction. Based on 1 488 survey observations，the present study employs a Logistic model to analyze the influence of individual characteristics and household endowments on farmers' choice of eco-friendly farming practices. The results indicate that，in terms of individual characteristics，males are more inclined to adopt eco-friendly farming practices，and education level significantly positively affects farmers' adoption decisions.Regarding household endowments，belonging to a dominant clan in the village，joining agricultural cooperatives，and higher cultivated land quality all significantly positively influence farmers' choice of eco-friendly farming practices，while annual household income and number of phones per household have a significant negative correlation with such choice. Based on these findings，it is recommended to strengthen the publicity and promotion of eco-friendly farming knowledge to overcome the "last mile" challenge in technology adoption；emphasize the cultivation of a social atmosphere conducive to eco-friendly farming and build a supportive social network for sustainable production；and establish sound policies and regulations to improve compensation mechanisms for eco-friendly farming practices. Figures and Tables | References | Related Articles | Metrics

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Research progress on the reciprocity relationship between "chicken-environment" under the under-forest farming model PAN Zhihong, CHEN Cheng, LIU Chenxing, LYU Wentao, FANG Dian, WEN Shijun, CAI Jie, XIAO Yingping, FAN Jinghui, ZHU Haiyan, LIU Yan, ZHONG Yifan, LU Lizhi, YAO Kaiyong 2026, 67 (4):  1075-1080.  DOI: 10.16178/j.issn.0528-9017.20240924 Abstract ( 4 )   HTML ( 0 )   PDF (474KB) ( 8 )   As an important form of under-forest economy，forest-based chicken farming integrates forestry and animal husbandry，effectively improving land-use efficiency while delivering notable ecological，economic，and social benefits. This paper systematically reviews the ecological effects of forest-based chicken farming on soil fertility improvement，vegetation promotion，and biodiversity. It also summarizes the regulatory role of the under-forest ecological environment on chicken health，production performance，and other husbandry outcomes. Based on current research gaps and future development directions，this paper puts forward suggestions aimed at providing theoretical support for the scientific advancement of under-forest farming models. Figures and Tables | References | Related Articles | Metrics