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采用静态箱-气相色谱法研究控失复合肥对稻田CH4排放量和水稻产量的影响。结果表明:稻田CH4排放有明显季节变化趋势,排放高峰集中在水稻分蘖期和孕穗期;控失复合肥的使用可减少稻田CH4累积排放量,控失复合肥较常规施肥在减N 24.21%、10.00%和增N 10.83%情况下分别减排CH4 64.97%、12.97%和15.06%;控失复合肥的使用可降低水稻单位产量的全球变暖潜能值(GWP);控失复合肥的使用对水稻增产具有显著作用。
Study on the Effects of Controlled - Loss Compost on CH4 Emission and Rice Yield in Paddy Field Using Static Chamber and Gas Chromatography. The results showed that there was a significant seasonal change in CH4 emission in paddy fields, and the peak of emission was concentrated in the tillering and booting stages of rice. The use of CCM in paddy decreased the cumulative CH4 emissions, while the loss of controlled-loss compound fertilizer was reduced by 24.21% 10.00% and N 10.83%, respectively, to reduce CH4 emissions by 64.97%, 12.97% and 15.06% respectively. The use of controlled-loss compound fertilizers reduced global warming potential (GWP) per unit of production of rice; Rice yield has a significant role.