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Journal of Agriculture ›› 2023, Vol. 13 ›› Issue (6): 39-42.doi: 10.11923/j.issn.2095-4050.cjas2022-0080

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Effects of Food Waste Soil Conditioners on Soil Physicochemical Properties and Rice Yield

LI Dan(), WANG Jingwen, YUAN Hangjie, SHANG Xiaolan, HUANG Yue, WEI Jiqian()   

  1. Agricultural Technology Extension Center of Hangzhou, Hangzhou 310020, Zhejiang, China
  • Received:2022-07-04 Revised:2022-11-01 Online:2023-06-20 Published:2023-06-15

Abstract:

By studying the comprehensive application effects of food waste soil conditioners on soil quality and crop growth, we aim to provide technical support for high and stable yield of rice. Different application rates on improving soil physicochemical properties and rice yield were discussed by plot field experiments. The results showed that food waste soil conditioners could effectively improve soil pH, and significantly increase the contents of soil organic matter, total nitrogen and available phosphorus. However, the soil total water-soluble salt content showed an upward trend with the increase of the conditioner application rate, so there was a risk of salinity accumulation. In addition, due to the high nitrogen content of the conditioner, high application rate could cause rice over-green and lodging, resulting in yield reduction. Comprehensive analysis of soil improvement, salinity accumulation and rice yield, T3 (conditioner rate of 15000 kg/hm2 + fertilizer) and T4 (conditioner rate of 30000 kg/hm2 + fertilizer) had better effects.

Key words: food waste, soil conditioner, pH, salinity, nutrient, yield