Effects of Nitrification Inhibitor Dicyandiamide Application on Rice Yield and Greenhouse Gas Emissions
A pot experiment was conducted to investigate the effects of applying nitrification inhibitor dicyandiamide on rice yield and greenhouse gas emissions with the conventional japonica rice variety Nanjing 9108 as the test material.Two treatments:conventional nitrogen fertilizer(CK)and conventional nitrogen fertilizer combined with dicyandiamide(DCD)were set up.The results showed that compared to CK,DCD treatment significantly increased rice yield(15.1％)and aboveground biomass(28.4％),but reduced methane(CH4)emissions(22.2％),nitrous oxide(N2O)emissions(56.0％),area-scaled global warming potential(GWP)(24.4％),and yield-scaled GWP(GHGI)(31.7％).It can be seen that DCD can increase grain yield and mitigate greenhouse gas emissions simultaneously in rice field.
nitrification inhibitordicyandiamidericeyieldmethanenitrous oxidepaddy field
国家科技期刊平台
NSTL
万方数据
维普
