Composition characteristics of fertilization intensity and influencing factors in typical agricultural region in the Taihu Lake basin—taking Suzhou Taihu eco-island as an example

doi:10.16178/j.issn.0528-9017.20240297

Abstract

Abstract:

In order to further promote the replacement of fertilizer reduction in Taihu Lake basin, Taihu eco-island was selected as the study object, and 200 business operators were visited and investigated from October to December 2020, and the composition characteristics and influencing factors of fertilizer intensity in Taihu eco-island were analyzed. The results showed that by 2020, the total fertilization intensity of Taihu eco-island was still at a relatively high level, with an average total fertilization intensity of 735.6 kg·hm^-2, among which the average fertilizer fertilization intensity was 486.6 kg·hm^-2. The average fertilization intensity of organic fertilizer was 321.0 kg·hm^-2, and the average organic fertilizer substitution rate was 37.01%. Fruit trees and vegetables are the crops that have the greatest impact on the total fertilization intensity. The fertilizer type that has the greatest impact is changing from chemical fertilizer to organic fertilizer, and the nutrient that has the greatest impact is changing from nitrogen to phosphorus and potassium. Considering the requirements for the construction of Taihu eco-island, it is suggested to combine the characteristics of crop fertilizer demand and the prevention and control points of agricultural non-point source pollution, continue to steadily promote the reduction of fertilizer, and further promote the replacement of organic fertilizer with chemical fertilizer.

Key words: Taihu eco-island, fertilization intensity, organic fertilizer substitution rate

CLC Number:

S143

YANG Qiuping, LU Lihua, HUI Wubin, JIANG Guangming, XU Junwei, ZHU Ruiding, WEI Xinyan, SHI Linlin. Composition characteristics of fertilization intensity and influencing factors in typical agricultural region in the Taihu Lake basin—taking Suzhou Taihu eco-island as an example[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(5): 1277-1281.

Figures/Tables 5

Fig.1 Distribution of total fertilization intensity for agricultural crops in Suzhou Taihu eco-Island

Fig.2 Fertilization intensity of chemical and organic fertilizers in Suzhou Taihu eco-island

Fig.3 Comparison of nitrogen, phosphorus, and potassium fertilization intensity for different crops in Suzhou Taihu eco-island

Fig.4 Relationship between fertilization intensity of organic fertilizer, chemical fertilizer and total fertilization intensity in Suzhou Taihu eco-island

Fig.5 Relationship between nitrogen, phosphorus, and potassium fertilization intensity and total fertilization intensity in Suzhou Taihu eco-island

References 13

[1]	中华人民共和国国务院新闻办公室. 《中国的粮食安全》白皮书[EB/OL]. (2019-10-14)[2024-03-15]. http://www.scio.gov.cn/zfbps/ndhf/2019n/202207/t20220704_130643.html.
[2]	JU X T, XING G X, CHEN X P, et al. Reducing environmental risk by improving N management in intensive Chinese agricultural systems[J]. Proceedings of the National Academy of Sciences of the United States of America, 2009, 106(9): 3041-3046.
[3]	中华人民共和国农业农村部. 到2025年化肥减量化行动方案[EB/OL]. (2019-10-14)[2024-03-15]. http://www.moa.gov.cn/govpublic/ZZYGLS/202212/t20221201_6416398.htm.
[4]	潘旭鸣, 丁淼, 周宇诚, 等. 蔬菜地氮磷径流流失量及其规律研究[J]. 农业环境科学学报, 2022, 41(10): 2262-2268.
[5]	严燕, 孙子杰, 李震宇, 等. 农村生态保护中的肥料减施问题与落实: 以太湖流域磷肥减施工作为例[J]. 江苏农业科学, 2021, 49(13): 207-211.
[6]	姚亦舟, 秦伯强. 太湖流域农村面源污染治理现状与前景研究[J]. 环境监测管理与技术, 2024, 36(1): 11-16.
[7]	吴林锋, 朱云, 朱喜. 2007—2020年太湖蓝藻持续暴发影响因素分析[J]. 水资源开发与管理, 2023, 9(2): 43-49, 84.
[8]	LIU Q P, WU T Y, TU W, et al. Analysis on the changes of fertilization intensity and efficiency in China’s grain production from 1980 to 2019[J]. Journal of the Science of Food and Agriculture, 2023, 103(2): 908-916.
[9]	施林林, 柳开楼, 董林林, 等. 太湖地区稻麦轮作系统有机氮肥替代率的演变特征及其影响因素[J]. 中国农学通报, 2024, 40(1): 1-6.
[10]	陶玥玥, 王海候, 金梅娟, 等. 小麦产量与土壤养分对水生植物源有机氮替代率的响应[J]. 土壤学报, 2019, 56(1): 156-164.
[11]	KHAN F, SIDDIQUE A B, SHABALA S, et al. Phosphorus plays key roles in regulating plants’ physiological responses to abiotic stresses[J]. Plants, 2023, 12(15): 2861.
[12]	JOHNSON R, VISHWAKARMA K, HOSSEN M S, et al. Potassium in plants: Growth regulation, signaling, and environmental stress tolerance[J]. Plant Physiology and Biochemistry, 2022, 172: 56-69.
[13]	王海, 席运官, 陈瑞冰, 等. 太湖地区肥料、农药过量施用调查研究[J]. 农业环境与发展, 2009, 26(3): 10-15.

[1]	CAI Wei, LOU Feng. Discussion on the determination method of potassium content in humic acid water-soluble fertilizers [J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(1): 232-235.
[2]	HONG Meiping, NI Zhongying, SHI Yijun, XIE Wei. Comparative experiment on nitrogen application of slow-release fertilizer on Yongyou series rice in Tonglu County [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(12): 2835-2839.
[3]	SHEN Yue, YAN Jun, WANG Jie, LU Ruohui. Investigation and analysis on water-soluble fluorine content in composite fertilizer [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(11): 2535-2538.
[4]	LUO Bingfang, TAN Zhixin, LI Lizeng, JIN Yiming, MAO Liansong, YU Qiaogang. Study on the application effect of different types of formula fertilizers on single crop rice [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(11): 2539-2542.
[5]	CHEN Weilong, SHEN Wenying, XIAO Jiali, TU Changpeng, CAO Xuexian. Effects of different proportions of organic nitrogen fertilizer replacing inorganic nitrogen fertilizer on growth and soil nitrogen supply capacity of double cropping rice [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(10): 2368-2372.
[6]	XIE Xiaocong, XU Xinxin, WANG Huirong, SHI Liyun, CHEN Kai, CHEN Jianmin, CAO Xuexian. Effect of different proportions of organic fertilizer nitrogen replacing inorganic nitrogen fertilizer on rice growth and fertilizer efficiency [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(9): 2028-2032.
[7]	YAO Yunfeng, HUA Wei, SHEN Huazhong, WANG Qifei, FAN Min, ZHU Jinghuan. Effects of nitrogen fertilizer management at different sowing dates on the economic characteristics and yield of the wheat cultivar Zhehua 1 [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(6): 1333-1336.
[8]	LU Xiuqin, YANG Shuang, LIU Wei, WEN Xiqing. Effects of nitrogen reduction combined with liquid cow dung on the growth, yield and quality of pepper [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(5): 1051-1055.
[9]	JIANG Minhua, DING Yi, LI Kuan, MENG Haoran, PAN Yimin, ZHANG Chao. Effects of polyurethane coated slow-release fertilizers on yield and utilization efficiencies of nutrients of double-cropping rice [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(3): 521-524.
[10]	ZHANG Huaijie, HU Tiejun, XU Rongrong. Effect of stable nitrogen fertilizer on economic characters and fertilizer utilization efficiency of Yongyou 15 [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(3): 531-535.
[11]	Wei CAI, Encheng FU. Study on the method of total digestion of organic fertilizer [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(2): 465-468.
[12]	Minhua JIANG, Yi DING, Haoran MENG, Kuan LI, Chao ZHANG, Yimin PAN. Effect of reduction of organic slow-release fertilizer application rates and time on late rice yield in Wucheng Distrist [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(2): 258-261.
[13]	Qian XIE, Mengjiao CAO. Correlation analysis of pesticide registration and pesticide reduction [J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(2): 401-404.
[14]	. [J]. Journal of Zhejiang Agricultural Sciences, 2023, 64(12): 2836-2839.
[15]	. [J]. Journal of Zhejiang Agricultural Sciences, 2023, 64(7): 1652-1655.