In order to explore the effects of biochar-based fertilizer on the soil-rice system of farmland,this study was based on long-term monoculture paddy field,using rice as the test material,and setting up five treatments to explore the responses of soil physicochemical properties,rice yield and fertilizer application rate to biochar-based fertilizer application.The results showed that biochar-based fertilizer could improve soil physicochemical properties.Among them,BC treatment could effectively increase soil pH value,OBF treatment had a better effect on soil organic matter and phosphorus content,OIBF treatment could help increase soil nitrogen and potassium content,and IBF treatment was more beneficial to increase the available medium elements in soil.At the same time,the application of carbon-based fertilizer can improve rice yield.The results showed that the single panicle of rice was the heaviest,the highest number of grains per panicle,the highest seed setting rate,and the corresponding theoretical yield of 9 915 kg·hm-2 after OIBF treatment.The application of carbon-based fertilizers reduced the amount of chemical fertilizers.In general,the application of carbon-based fertilizer can effectively improve the soil degradation caused by partial fertilizer application and the subsequent crop yield problem,while the combined application effect of organic and inorganic carbon-based fertilizer is the most ideal.
关键词
炭基肥/土壤理化性质/水稻产量/化肥减量
Key words
carbon-based fertilizer/soil physical and chemical properties/crop yield/fertilizer reduction
维普
万方数据