Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (12): 3073-3079.DOI: 10.16178/j.issn.0528-9017.20240999

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Analysis and evaluation of the effectiveness of improving the fertility of standard farmland in Tengqiao Town, Wenzhou City

ZHANG Hui(), LI Wenfeng, WANG Liang(), CHEN Jingjing, GAO Qingying   

  1. Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, Zhejiang
  • Received:2024-12-30 Online:2025-12-11 Published:2025-12-17

Abstract:

Tengqiao Town in Wenzhou City has improved the soil fertility of 68.13 hm2 of standard farmland over a period of 4 years. The area has increased soil organic matter, available potassium, and available phosphorus content by planting green manure and applying organic fertilizers, potassium chloride, calcium magnesium phosphate fertilizers, etc. The soil pH value has been improved by applying quicklime, and cation exchange capacity has been increased by applying zeolite powder. To achieve precise fertilization, the project area has been divided into 30 monitoring plots. Soil samples from each monitoring plot are collected every year after crop harvesting for testing and analysis. Targeted fertilization is carried out based on the dynamic changes in soil fertility in the project area. According to this method, the soil fertility of cultivated land in the project area shows an increasing trend year by year, with comprehensive soil fertility indices of 0.776, 0.766, 0.784, 0.806, 0.809, respectively, from 2016 to 2020.

Key words: standard farmland, farmland fertility improvement, comprehensive soil fertility index

CLC Number: