Effects of Zinc Fertilizer Application on Rice Yield and Nutrient Absorption
In order to explore the response of rice growth,development,and nutritional characteristics to zinc fertilizer in the Yangzi River Basin.Field experiment with four plots were set up with no fertilizer(CK),farmers'customary fertilizer practice(FFP)and zinc fertilizer(ZnSO47H2O)of 20 and 40 kg/hm2(FFP+Zn20,FFP+Zn40)based on FFP to study the effects of zinc fertilizer on rice growth,yield,and nutrient absorption.The results showed that compared with FFP,FFP+Zn20 and FFP+Zn40 increased 1 000-grain weight and seed-setting rate of rice,with FFP+Zn40 achieving a significant increase in the 1 000-grain weight and seed-setting rate(P<0.05).The yield and net benefit of FFP+Zn40 were the highest in the four treatments,increasing significantly by 14.5％and 15.6％compared with FFP.The combined applica-tion of N and Zn is beneficial for the increase of N and Zn content in the leaves,stems,sheaths,and panicles of rice at maturity,with FFP+Zn40 having the highest increase.Increasing the application of zinc fertilizer is beneficial for increasing yield,income,and quality of rice in the region.The application of N,P2O5,and K2O at 164,54,126 kg/hm2 respectively,combined with the application of ZnSO4·7H2O at 40 kg/hm2 in the base fertilizer soil,has the best effect.
万方数据
维普
