Most Down Articles

Published in last 1 year | In last 2 years| In last 3 years| All| Most Downloaded in Recent Month | Most Downloaded in Recent Year|

In last 3 years

Please wait a minute...


For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails

Select

Journal of Zhejiang Agricultural Sciences    2023, 64 (9): 2191-2196.   DOI: 10.16178/j.issn.0528-9017.20220828 Abstract （627）   HTML （43）    PDF （1392KB）（1029）       Knowledge map    Table and Figures | Reference | Related Articles | Metrics

Select

Breeding and cultivation techniques of super-high yield, high-quality and early-maturity indica-japonica hybrid rice Zheyou 915 WANG Jianjun, SONG Jian, CUI Yongtao, FAN Honghuan, TANG Liqun Journal of Zhejiang Agricultural Sciences    2024, 65 (9): 2014-2018.   DOI: 10.16178/j.issn.0528-9017.20240189 Abstract （631）   HTML （39）    PDF （1090KB）（982）       Knowledge map    High yield and high quality are the key goals of the rice industry, but there is an obvious contradiction between these two traits, and it is very difficult to gather the two traits on the same variety by conventional breeding techniques. Our research team successfully bred an ultra-high-yielding and high-quality early-maturing indica-japonica hybrid rice Zheyou 915 by combining molecular breeding technology with indica-japonica heterosis utilization method. This variety has shown very high yield potential in regional trials and production trials. The quality of rice is in line with the third grade of the ministry standard of edible rice, and the other indicators in the evaluation index are in line with the first grade of the ministry standard except for the alkali elimination value. The whole growth period was 146.5-156.5 days, and it was 0.3-0.9 days earlier than Jiayou 5. In 2023, it will pass the national variety approval and is suitable for promotion and application in southern japonica rice planting areas such as Zhejiang, Shanghai, Anhui, Hubei, and southern Jiangsu. According to the characteristics of Zheyou 915, this paper proposes a key high-yield cultivation technology to improve the effective panicle and increase the number of grains per panicle. Table and Figures | Reference | Related Articles | Metrics

Select

Journal of Zhejiang Agricultural Sciences    2023, 64 (7): 1609-1616.   DOI: 10.16178/j.issn.0528-9017.20230024 Abstract （657）   HTML （7）    PDF （1222KB）（962）       Knowledge map    Table and Figures | Reference | Related Articles | Metrics

Select

Journal of Zhejiang Agricultural Sciences    2023, 64 (7): 1781-1784.   DOI: 10.16178/j.issn.0528-9017.20221204 Abstract （814）   HTML （9）    PDF （1173KB）（962）       Knowledge map    Table and Figures | Reference | Related Articles | Metrics

Select

Screening of suitable regenerative rice varieties and their supporting cultivation technology in Shaoxing SONG Youliang, ZHOU Xingyuan, ZHANG Kan Journal of Zhejiang Agricultural Sciences    2024, 65 (9): 2042-2045.   DOI: 10.16178/j.issn.0528-9017.20230703 Abstract （593）   HTML （9）    PDF （1054KB）（957）       Knowledge map    In order to screen out the regenerative rice varieties suitable for planting in Shaoxing area, four regenerative rice varieties (combinations) were used as materials to carry out adaptability tests such as yield and whole growth period. The results showed that the yields of the four regenerated rice varieties, namely Huiliangyou 280, Huiliangyou 1813, Jingliangyou 1468 and Jingliangyou 1212, were significantly higher than those of single-season late rice, and the growth period was shorter than that of “early rice + continuous cropping late rice”, which was suitable for planting as regenerative rice in Shaoxing area. At the same time, the high-yield cultivation technology supporting the regenerated rice was explored and summarized, in order to provide a technical reference for the planting of regenerative rice to large grain growers in the city. Table and Figures | Reference | Related Articles | Metrics

Select

Effects of different application amount of silicon fertilizer on growth and fruit quality of apple WEI Jiafeng, MA Xinyuan, ZHANG Ruiping Journal of Zhejiang Agricultural Sciences    2024, 65 (8): 1814-1820.   DOI: 10.16178/j.issn.0528-9017.20230666 Abstract （824）   HTML （7）    PDF （1665KB）（946）       Knowledge map    In order to study the effects of different silicon fertilizers on the growth and fruit quality of apple, the nine-year-old Eai 2 was selected as the research object, and four treatments were set up, T1 (Rongdimei 15 mL per plant), T2 (Rongdimei 11.25 mL per plant), T3 (Rongdimei 7.5 mL per plant) and CK (no fertilization). The effects of different dosage of Rongdimei on the growth and fruit quality of apple were studied by measuring the growth and fruit quality of apple. The results showed that after the application of Rongdimei, the difference of T3 was the most significant (P<0.05). Compared with CK, the new shoot length, new shoot thickness, hundred-leaf weight and hundred-leaf thickness were increased by 17.41%, 13.51%, 17.52% and 11.68%, respectively. Fruit weight, hardness, increased by 12.96%, 15.20%, soluble solid content increased by 1.370 percentage points and titrable acid decreased by 0.048 percentage points;Leaf net photosynthetic rate, stomatal conductance, intercellular CO2 concentration and transpiration rate were increased by 10.84%, 8.08%, 5.25% and 22.66%, respectively. In conclusion, 7.5 mL per plant Rongdimei silicon fertilizer can effectively promote the growth and development of apple and improve fruit quality, and can be recommended for use in production. Table and Figures | Reference | Related Articles | Metrics

Select

Study on the problems and countermeasures of seed industry revitalization in Zhejiang Province YU Xiaolin Journal of Zhejiang Agricultural Sciences    2024, 65 (5): 985-990.   DOI: 10.16178/j.issn.0528-9017.20240190 Abstract （699）   HTML （19）    PDF （1099KB）（944）       Knowledge map    Seed, “chip” of agriculture, is the core foundation of national food security. Promoting the seed industry rejuvenation action has become a key role to ensure the food security in China currently. This paper summarized the development status of seed industry in Zhejiang Province, and the main problems faced by the seed industry in Zhejiang Province as well. Subsequently, we proposed five suggestions to deal with these problems: strengthening the classification and management of seeds enterprises, form 1 to 2 internationally competitive seed industry enterprises; increasing support for the joint breeding research, promote the orderly flow of innovation elements to enterprises; integrating the innovation chain and industrial chain, build a whole chain of collaborative innovation system of seed industry; accelerating the construction of modern seed production base, build a strong province of crop seed production; deepening the opening up and exchange cooperation, construct a double cycle development pattern for seed industry. Table and Figures | Reference | Related Articles | Metrics

Select

Key points of agronomic traits and cultivation technology of indica-japonica hybrid rice variety Chunyou 87 ZHI Xinzhong, CHEN Zhonglin, YING Qiaohong, LONG Qiyong Journal of Zhejiang Agricultural Sciences    2024, 65 (9): 2019-2022.   DOI: 10.16178/j.issn.0528-9017.20240063 Abstract （598）   HTML （17）    PDF （1080KB）（935）       Knowledge map    Chunyou 87 is a japonica three-line hybrid rice variety selected and bred by the China Rice Research Institute, which was approved by the National Crop Variety Examination and Approval Committee in 2021 (National Rice 20210374), and is suitable for single-season late rice planting in the rice blast light areas of japonica rice areas in Zhejiang Province, Shanghai, southern Jiangsu Province, Anhui Province and Hubei Province. From 2022 to 2023, Yongkang City introduced Chunyou 87 which was characterized by neat and consistent growth, green stalks and yellow maturity in the later stage, with the advantages of good color change, strong lodging resistance, good yield, and excellent rice quality. In this paper, the demonstration planting performance and agronomic traits were summarized, and the key points of high-yield cultivation technology from seed treatment, timely sowing, reasonable dense planting, scientific fertilization, water slurry management, weed, disease and pest control were introduced, so as to provide a reference for the promotion of planting in Yongkang area. Table and Figures | Reference | Related Articles | Metrics

Select

Effect of different organic fertilizer substitutions on soil property and quality of citrus XU Jianfeng, JIN Yuqing, ZHU Xiaoting, FANG Hui, CAI Jianjun, YE Zhengqian Journal of Zhejiang Agricultural Sciences    2024, 65 (5): 1097-1101.   DOI: 10.16178/j.issn.0528-9017.20230757 Abstract （568）   HTML （7）    PDF （1421KB）（932）       Knowledge map    Field experiments were conducted to study the effects of different organic fertilizer substitution modes on the quality and soil properties of citrus. A control experiment was conducted by setting up five treatments: no fertilization, conventional fertilization, chemical fertilizer optimization, 15% organic fertilizer substitution, and 30% organic fertilizer substitution. The results showed that the soil physical and chemical properties and fruit quality of each organic fertilizer substitution treatment were improved to varying degrees compared with the blank non-fertilization and chemical fertilizer optimization. Among them, the soil pH value of 15% organic fertilizer substitution treatment was the highest, and the soil organic matter and alkali-hydrolyzable nitrogen content increased with organic fertilizer substitution ratio. The juice rate of 15% organic fertilizer substitution treatment was the highest, and the content of soluble solids was lower than that of conventional fertilization. At the same time, 15% organic fertilizer substitution treatment has the lowest total acid content. From the perspective of soil quality improvement and citrus quality improvement, 15% fertilizer organic fertilizer can be used instead of chemical fertilizer. Table and Figures | Reference | Related Articles | Metrics

Select

Effect of different composite substrate on growth and fruit quality of strawberry cultivar Benihoppe DI Huatao, LI Jinfeng, WAN Chunyan, CHEN Xueping, HUO Hengzhi, CHEN Bingyi Journal of Zhejiang Agricultural Sciences    2024, 65 (8): 1821-1825.   DOI: 10.16178/j.issn.0528-9017.20230701 Abstract （671）   HTML （5）    PDF （1154KB）（930）       Knowledge map    To investigate the effects of four different composite substrates on the plant growth and fruit quality of strawberry cultivar Benihoppe, this study utilized common agricultural wastes such as mushroom residue, coconut bran and vinegar lees to mix with peat, perlite and vermiculite in a composite substrate, according to the demand of substrate characteristics for strawberry plant growth,then compared their effects on the plant growth and fruit quality of strawberry cultivar Benihoppe. These substrates were peat∶perlite∶vermiculite=60∶20∶20 (T1); coconut bran∶peat∶vermiculite∶perlite=50∶40∶5∶5 (T2); mushroom residue∶peat∶vermiculite∶perlite=40∶30∶15∶15 (T3); vinegar lees∶peat∶vermiculite∶perlite=60∶20∶10∶10 (T4). The results showed that there was no significant difference in plant morphology among T1, T2, and T3 treatment, while the leaf length, leaf width, and plant height of T4 treatment were significantly lower than T1 treatment; In terms of phenology, the fruit ripening period of T3 treatment was earlier than the other three treatments for 8-11 days; In terms of fruit yield and quality, T1 treatment had the highest single plant yield and soluble solid content, while T2 treatment had the highest average single fruit weight and lowest total acid content. The fruit hardness of T3 treatment was significantly lower than other treatments, but its soluble solid content was similar to T1, and significantly higher than T2 and T4. T4 treatment had the highest hardness and total acid content, but had the lowest single plant yield, single fruit weight, and soluble solid content. Therefore, coconut bran and mushroom residue can replace some peat, especially the T3 composite substrate has good application prospects in precocious cultivation. Table and Figures | Reference | Related Articles | Metrics

Select

Effect of structural optimization on yield and quality of tobacco upper leaf in Tongren Cheng YANG, Yongfeng AI, Bowen LU, Dajiang SONG, Fenghua PAN Journal of Zhejiang Agricultural Sciences    2024, 65 (2): 307-313.   DOI: 10.16178/j.issn.0528-9017.20220819 Abstract （449）   HTML （29）    PDF （1134KB）（925）       Knowledge map    Through the effects of different topping stage and remained leaf number on agronomic and economic traits of flue-cured tobacco, the individual development and population structure of tobacco plants were improved, reasonable plant type was established, and the yield and quality of upper tobacco leaves was improved, and then the quality and industrial availability of upper tobacco leaves of Tongren flue-cured tobacco were improved, providing a theoretical basis for the high-quality production of upper tobacco leaves of Tongren. Through the field experiment, a two-factor and three-level random block design was adopted. The two factors were topping stage and remained leaf number, the topping stage was recorded as A; the three levels were bud stage (A1), initial flowering stage (A2) and full flowering stage (A3), the remained leaf number was recorded as B; the three levels were 18 pieces (B1), 20 pieces (B2) and 22 pieces (B3), and each treatment was repeated 3 times. The results showed that the maximum leaf area, the area of the uppermost leaf area and the area of the third leaf from the top increased first and then decreased with the increase of the remained leaf number in the same topping stage. The topping stage had little effect on the economic properties of flue-cured tobacco, but with the increase of the remained leaf number, the yield, average price, output value and proportion of high-grade tobacco gradually decreased, and the proportion of medium and high-grade tobacco was higher under A2B2 and A2B1 treatment, which were 98.63% and 98.55%, respectively. The appearance quality and sensory quality scores of cured tobacco leaves were the highest, 7.38 and 69.10 points, respectively. With the increase of the remained leaf number, the indices of total sugar content, reducing sugar content, sugar-base ratio and potassium-chlorine ratio all increased first and then decreased at the peak of bud stage, while the nicotinic, total nitrogen, potassium and chlorine all decreased first and then increased, and the ratio of two sugar gradually decreased. At the peak of early flowering, the contents of total sugar and reducing sugar gradually decreased, the contents of nicotine and total nitrogen and the ratio of potassium to chlorine first decreased and then increased, the ratio of potassium, chlorine and the ratio of two sugar gradually increased, and the ratio of sugar-nicotine first increased and then decreased. At the peak of flowering stage, the content of total sugar, reducing sugar, total nitrogen and the ratio of sugar-nicotine increased first and then decreased, the content of nicotine and the ratio of potassium to chlorine decreased first and then increased, and the content of potassium and the ratio of two sugar gradually increased. All in all, topping and leaving 20 leaves at the bud stage can improve the agronomic traits of tobacco plants, improve the appearance quality and sensory quality of tobacco leaves, the chemical composition content is suitable and the coordination is better, and the economic properties are relatively good, which can be demonstrated and applied in Tongren tobacco-growing area. Table and Figures | Reference | Related Articles | Metrics

Select

Journal of Zhejiang Agricultural Sciences    2023, 64 (8): 1913-1919.   DOI: 10.16178/j.issn.0528-9017.20221004 Abstract （1098）   HTML （9）    PDF （4372KB）（922）       Knowledge map    Table and Figures | Reference | Related Articles | Metrics

Select

Effects of different dosages of soil conditioner on the growth of Puccinellia tenuiflora and soil nutrients YANG Jianqiang, GAO Jiarui, LIU Chaochao, WANG Qiaoling Journal of Zhejiang Agricultural Sciences    2024, 65 (9): 2138-2142.   DOI: 10.16178/j.issn.0528-9017.20240487 Abstract （503）   HTML （5）    PDF （2862KB）（913）       Knowledge map    In order to clarify the effects of different dosages of soil conditioner on the growth and development of Puccinellia tenuiflora and soil nutrients, a field experiment was conducted to analyze the effects of different dosage of soil conditioner on yield, nutritional quality, soil nutrients and water content of Puccinellia tenuiflora. The results showed that the application of soil conditioner significantly increased the yield of Puccinellia tenuiflora. When the application dosage of soil conditioner reached 30 t·hm-2, the yield of Puccinellia tenuiflora reached the maximum. The soil nutrient content increased with the increase of the application dosage of soil conditioner, and reached the highest when the application dosage of soil conditioner was 30 t·hm-2. The nutritional quality of Puccinellia tenuiflora varied with the increase of soil conditioner application dosage. The content of neutral detergent fiber and acid detergent fiber decreased with the increase of soil conditioner application dosage, and the content was the lowest when the soil conditioner application dosage was 30 t·hm-2. The content of crude fat, crude protein, starch, calcium, magnesium, iron and zinc reached the highest when the soil conditioner application dosage was 30 t·hm-2. Soil conditioner significantly affected the water conservation capacity of soil. Compared with the control, the soil moisture content of 15 and 30 t·hm-2 soil conditioner increased by 5.15 and 9.10 percentage points, respectively. In summary, when the application dosage of soil conditioner was 30 t·hm-2, the soil nutrient content and the growth of Puccinellia tenuiflora were the best. Table and Figures | Reference | Related Articles | Metrics

Select

Introduction performance and supporting cultivation techniques of Yuanxiaochun citrus hybrid in Quzhou, Zhejiang Province LIU Lili, LI Jianzhong, LIU Chunrong, WU Qun, MA Chuangju, YU Yaofei, ZHOU Mingqiang, WANG Dengliang Journal of Zhejiang Agricultural Sciences    2024, 65 (6): 1387-1391.   DOI: 10.16178/j.issn.0528-9017.20230623 Abstract （395）   HTML （5）    PDF （1208KB）（910）       Knowledge map    Yuanxiaochun was introduced to the red and yellow soil of Quzhou for planting with orange rootstock seedlings or using Ponkan, Huyou, and Gongchuan Wenzhou honey citrus as intermediate rootstocks for high grafting and replanting, all of which showed fast growth, vigorous tree vigor, high and stable yield, excellent flavor and quality, strong resistance to high temperature, drought, and freezing, and had the potential for promotion and application. The average tree height of orange rootstock seedlings in the fifth year of planting is 2.96 m, with a crown diameter of 3.58 m×3.43 m, an average 667 m2 yield of 1 322.7 kg; The average tree height in the fifth year of high grafting and replanting is 3.25 m, with a crown diameter of 4.13 m×3.75 m, an average 667 m2 yield of 2 269.0 kg. The average weight of a single fruit harvested in mid January in greenhouse cultivation is 142.3 g, with a fruit peel thickness of 2.59 mm, a juice yield of 56.4%, an edible rate of 76.8%, a soluble solid content of 12.9%, and a total acid content of 0.97%, as well as a strong and juicy taste, tender flesh without residue, excellent flavor and taste. Supporting cultivation techniques such as garden planting, high grafting and seed replacement, shaping and pruning, fertilizer and water management, flower and fruit management, and disease and pest control were summarized in this article. Table and Figures | Reference | Related Articles | Metrics

Select

Preliminary report of six new strawberry varieties planted in greenhouses in Fenghua District, Ningbo City ZHANG Yubo, ZHANG Chengyi, LI Si, HE Yong, HE Yongchoulin, HU Meihua Journal of Zhejiang Agricultural Sciences    2024, 65 (8): 1781-1785.   DOI: 10.16178/j.issn.0528-9017.20240401 Abstract （1475）   HTML （15）    PDF （1149KB）（910）       Knowledge map    In order to enrich the variety types and optimize the variety structure of greenhouse strawberries in Fenghua, Ningbo, a comparative experiment was conducted on six new strawberry varieties, namely Yuexiu, Jiandehong, Fenyu 1, Mengjing, Danxue, and Baili, with the main locally planted varieties Hongyan and Zhangji as controls. The results showed that Yuexiu fruit was large, high-yielding, high-quality, and resistant to storage and transportation. Fenyu 1 and Danxue had good early ripening. Fenyu 1 was pink white in fruit surface color, Danxue was orange in fruit surface color with beautiful appearance and good quality. Baili was pure white in color, with a large fruit shape, a high sugar to acid ratio, and had good resistance to mites. Therefore, the four varieties of Yuexiu, Fenyu 1, Danxue, and Baili can be promoted and planted in Fenghua District. Table and Figures | Reference | Related Articles | Metrics

Select

Effects of organic substance composting inoculants under straw returning on wheat yield and soil chemical characteristics GUO Xinsong, LIU Tongxin, HONG Pizheng, GAO Han, JING Jiyue, DING Fangjun Journal of Zhejiang Agricultural Sciences    2025, 66 (1): 44-50.   DOI: 10.16178/j.issn.0528-9017.20230979 Abstract （425）   HTML （16）    PDF （1486KB）（904）       Knowledge map    In this study, three treatments were set up: straw not returning (CK), straw returning (T1) and straw returning with organic substance composting inoculants (T2), and the effects of organic substance composting inoculants on wheat yield, soil alkaline hydrolyzable nitrogen, available phosphorus, available potassium content, soil enzyme activity and microbial number under the condition of straw returning were investigated through field experiments. The results showed that there was no significant difference in the number of panicle and grains per panicle between treatments, but the application of organic substance composting inoculants significantly increased the 1 000-grain weight of wheat. Compared with CK, T2 treatment significantly increased the number of soil bacteria and decreased the number of fungi. Under the condition of straw returning to the field, the activities of neutral phosphoconvertase, sucrase and catalase in the soil were significantly increased under the application of organic substance composting inoculants. The contents of available phosphorus, available potassium, total nitrogen, organic matter and organic carbon increased significantly after the application of organic substance composting inoculants. The above results showed that under the condition of straw returning to the field, organic substance composting inoculants accelerated the decomposition rate of straw in the soil, increased the number of soil microorganisms and soil enzyme activities, promoted the dissociation of mineral nutrients in the soil, increased the content of available mineral nutrients in the soil, improved the rhizosphere soil environment of wheat, and promoted the growth of wheat. Table and Figures | Reference | Related Articles | Metrics

Select

Study on the application effect of the main acidification management model for grape cultivated land in Changxing County WEN Wei, PAN Jianqing, YU Bo, XIE Jing, MA Junwei, YANG Yan, WANG Feng Journal of Zhejiang Agricultural Sciences    2024, 65 (8): 1838-1842.   DOI: 10.16178/j.issn.0528-9017.20230428 Abstract （601）   HTML （5）    PDF （6374KB）（898）       Knowledge map    This study focuses on the acidification status of typical vineyard soils in Changxing County, Huzhou City, and compares the impacts of two primary methods “organic fertilizer + green manure” and “soil conditioner with humic acid + green manure” on soil acidification, nutrient quality, and grape quality, using conventional fertilization as the control. The results indicated that the “organic fertilizer + green manure (Vulpia myuros)” method had negligible effects on soil pH value, showing no significant influence on exchangeable H+ and total exchangeable acidity, but it significantly reduced the levels of exchangeable Al3+ and Mn. The second method, “soil conditioner with humic acid + green manure”, significantly lowered the pH value, exchangeable H+, exchangeable Al3+, total exchangeable acidity, and exchangeable Mn levels in the soil. Both methods significantly enhanced the soil's organic matter content, cation exchange capacity, and the levels of exchangeable calcium and magnesium, thereby increasing the soil's buffer capacity. These approaches also significantly boosted the grape fruit's soluble sugar, vitamin C, and total free amino acid content, with the “soil conditioner with humic acid + green manure” method showing a greater effect on vitamin C enhancement. Therefore, both primary methods effectively reduce soil acidity and enhance fertility, thereby improving grape quality. Table and Figures | Reference | Related Articles | Metrics

Select

Effects of biochar on soil improvement and yield and quality of Chinese cabbage in greenhouses LI Gensheng, LI Zenan, WANG Meixian, LU Haiqin Journal of Zhejiang Agricultural Sciences    2024, 65 (5): 1139-1142.   DOI: 10.16178/j.issn.0528-9017.20240081 Abstract （775）   HTML （7）    PDF （1122KB）（896）       Knowledge map    There are soil problems such as soil acidification and heavy metal accumulation in perennial continuous greenhouses, which seriously restrict the sustainable development of agriculture and the safe production of agricultural products, and it is urgent to treat the greenhouse soil with soil degradation problems. The effects of corn straw biochar application on soil, yield and quality of Chinese cabbage were studied through field experiments. The results showed that compared with the control, the pH value of the soil was increased by 0.47-0.86, the organic matter content was increased by 32.0%-65.6%, the total nitrogen content was increased by 8.4%-19.3%, the available phosphorus content was increased by 38.9%-42.3%, and the available Cd content was reduced by 32.8%-47.7%. When 30 t·hm-2 biochar was applied, the yield and soluble sugar content of Chinese cabbage increased by 18.8% and 27.8%, respectively. When 15 and 30 t·hm-2 biochar were applied, the nitrate content in Chinese cabbage decreased by 37.7% and 44.7%, and the Cd content decreased by 22.8% and 60.5%, respectively. It can be seen that high dosage of biochar can more effectively reduce the content of available Cd in soil and the content of Cd in Chinese cabbage. The application of 30 t·hm-2 biochar could better improve the greenhouse soil and increase the yield and quality of Chinese cabbage. Table and Figures | Reference | Related Articles | Metrics

Select

Study on the difference of soil properties in different tea planting years XIANG Shuyan, ZHAN Lichuan, ZHOU Qingwei, JIN Meiqing, WU Weihong, FU Li Journal of Zhejiang Agricultural Sciences    2024, 65 (6): 1364-1369.   DOI: 10.16178/j.issn.0528-9017.20231034 Abstract （655）   HTML （3）    PDF （1331KB）（895）       Knowledge map    In order to improve the soil quality of tea gardens, a series of soils of different tea planting years were collected in this study to explore the changes of soil quality of tea gardens in Fuyang District of Hangzhou with tea planting years. According to the evaluation criteria of soil nutrients proposed by the second national soil survey, the nutrient abundance and deficiency of tea garden soil samples were evaluated. The single factor pollution index method and Nemerow comprehensive pollution index method were introduced to evaluate the metal pollution. The results showed that perennial tea planting would lead to a decrease in soil pH value, while organic matter content in soil increased with the increase of tea planting years, available phosphorus showed a decreasing trend, total nitrogen and available potassium contents increased first and then decreased. The content of available iron, available manganese, available zinc and available copper in trace elements increased. The results of this study can provide data support for better fertilizer application, fertility maintenance and soil improvement. Table and Figures | Reference | Related Articles | Metrics

Select

Selection of dry grain crops with low accumulation of heavy metals in Zhejiang Province JIANG Jianwu, SUN Yefang, LU Huabing, SHI Tengnan, ZHANG Min Journal of Zhejiang Agricultural Sciences    2024, 65 (7): 1521-1530.   DOI: 10.16178/j.issn.0528-9017.20240116 Abstract （573）   HTML （45）    PDF （4157KB）（891）       Knowledge map    In order to screen optimum varieties of dry grain crops with low accumulation of heavy metals in polluted farmland, we planted 10 varieties each of drought-tolerant crops, such as sorghum, maize, and soybean on farmland contaminated with heavy metal compounds, and analyzed the contents of heavy metal elements such as Cd, Ni, Cu, and Zn in the grains of these crops by conducting field experiments. The results showed that the preferred sorghum variety with low Cd accumulation was Jinnuo 3, the preferred maize varieties with low Cd accumulation are Zhenuoyu 86 and Zhetian 19, and the preferred soybean variety with low Cd accumulation was Zhechun 8. Sorghum varieties with low accumulation of Cd, Ni, Cu, and Zn were Jinnuo 3 and Jinza 31, maize varieties with low accumulation of Cd, Ni, Cu, and Zn were Zhenuoyu 18, Zhenuoyu 86, and Yinnuo 1, and soybean varieties with low accumulation of Cd, Ni, Cu, and Zn were Zhechun 8 and Liaoxian. The results of this study can provide a scientific basis for selecting dry grain crop varieties with low accumulation of heavy metals in polluted farmland in the Zhejiang region. Table and Figures | Reference | Related Articles | Metrics