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

doi:10.11923/j.issn.2095-4050.cjas2022-0080

Abstract

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

LI Dan, WANG Jingwen, YUAN Hangjie, SHANG Xiaolan, HUANG Yue, WEI Jiqian. Effects of Food Waste Soil Conditioners on Soil Physicochemical Properties and Rice Yield[J]. Journal of Agriculture, 2023, 13(6): 39-42.

Figures/Tables 4

References 28

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处理	有机质/(g/kg)	全氮/(g/kg)	有效磷/(mg/kg)	速效钾/(mg/kg)
CK	12.57d	0.78d	30.79e	124.13e
T1	12.93d	0.83d	30.61e	130.80d
T2	13.50cd	0.86bcd	29.96e	135.80c
T3	14.27c	0.86cd	32.95d	117.47f
T4	19.42ab	1.02bc	36.85c	142.53b
T5	18.20b	1.05ab	40.36b	130.80d
T6	19.60a	1.21a	44.49a	155.90a

处理	有机质/(g/kg)	全氮/(g/kg)	有效磷/(mg/kg)	速效钾/(mg/kg)
CK	12.57d	0.78d	30.79e	124.13e
T1	12.93d	0.83d	30.61e	130.80d
T2	13.50cd	0.86bcd	29.96e	135.80c
T3	14.27c	0.86cd	32.95d	117.47f
T4	19.42ab	1.02bc	36.85c	142.53b
T5	18.20b	1.05ab	40.36b	130.80d
T6	19.60a	1.21a	44.49a	155.90a