Effects of Rapeseed Greening and Returning to Field Combined with Fertilizer Reduction on Rice Yield and Soil Fertility
To explore the best level of fertilizer reduction for green fertilizer return to the field,and to provide a theoretical basis for the promotion of green fertilizer replacement technology and the implementation of fertilizer reduction and efficiency.Arice experiment was conducted.This experiment involved overpressing 22.5 t/hm2 rapeseed with the same amount of green fertilizer,and setting up 8 different levels of fertilizer fertilization levels to determine the potential for fertilizer reduction potential based on the changes in rice yield and soil fertility.The yield of rice treated witha 30％fertilizer reduction was similar to that treated with singleaa fertilizer application,and the yield of rice remained unchanged.The rice yield under the treatment of reducing fertilizer application by 15％-20％was the highest,showing an increasing trend.The treatment without fertilizer reduction resulted in excess fertility.Green fertilizer returning to the field can increase soil available nutrients and improve soil fertility.Rapeseed can replace a portion of the fertilizer application,increase rice yield,enhance the quality of soil environment and enhance the quality of cultivated land quality.In rice production,it is recommended to plant green fertilizer to return to the field and apply chemical fertilizer or organic fertilizer to increase rice yield and improve soil fertility.
Green manure returnChemical fertilizer reductionRice experiment
万方数据
维普
