中国土壤与肥料Issue(3)：41-47,7.DOI:10.11838/sfsc.1673-6257.24333
滴灌水肥一体化对潮土氨挥发及小麦产量的影响
Effects of drip irrigation on ammonia volatilization and wheat yield in fluvo-aquic soil
摘要
Abstract
The effects of irrigation methods on ammonia volatilization and wheat yield in fluvo-aquic soil were studied on the basis of a four-year field positioning experiment with different irrigation methods.A total of 4 treatments were set up,including three types of irrigation methods,i.e.,traditional irrigation(TI),sprinkling irrigation(SI)and drip irrigation(DI),with no fertilization and irrigation treatment as the control(CK).The results showed as follows:(1)The peak of ammonia volatilization rate of different irrigation methods in wheat base fertilizer and topdressing period appeared on the 3rd and 1st day after fertilization,respectively,and the ammonia volatilization rate of DI treatment was significantly lower than that of TI treatment during the period of high ammonia volatilization rate(the first 4 days after fertilization).(2)The total amount of ammonia volatilization,ammonia volatilization loss rate,ammonia emission coefficient and ammonia volatilization intensity per unit yield of TI were the highest in different irrigation methods,which were 3.61 kg/hm2,1.72％,1.07％and 0.63 kg/t,respectively,and the lowest in DI treatment,which were 2.98 kg/hm2,1.42％,0.77％and 0.43 kg/t,respectively,which were lower than TI treatment by 17.6％,17.6％,28.2％and 30.7％,respectively.(3)Irrigation significantly increased wheat yield by 32.0％-51.7％compared with CK,and the yield in DI treatment was the highest,up to 6.85 t/hm2,which was 57.1％,19.0％and 10.7％higher than that in CK,TI and SI,respectively.(4)Correlation analysis showed that soil water content and ammonium nitrogen content were very significantly or significantly positively correlated with ammonia volatilization rate during base fertilizer and topdressing period,while rainfall and average wind speed were only significantly or extremely significantly positively correlated with ammonia volatilization rate only during topdressing period.In summary,the drip irrigation was the best irrigation method to increase wheat yield and reduce NH3 volatilization loss in farmland under the soil environment and meteorological conditions in this study.关键词
小麦/滴灌水肥一体化/潮土/氨挥发/产量Key words
wheat/drip irrigation/fluvo-aquic soil/ammonia volatilization/yield引用本文复制引用
高翠民,王小非,党静,何方,杨永辉,张运红,韩伟锋,武继承..滴灌水肥一体化对潮土氨挥发及小麦产量的影响[J].中国土壤与肥料,2025,(3):41-47,7.基金项目
河南省农业科学院自主创新项目(2024ZC054) （2024ZC054）
河南省农科院科技创新团队项目(2024TD27) （2024TD27）
河南省中央引导地方项目(Z20231811180). （Z20231811180）
