【摘 要】
：
To achieve the purpose of reducing farm non-point source pollution,we integrated site specific nitrogen management,precise irrigation,controlled drainage,and we
【机 构】
：
Hydraulic and Electricity Survey and Designing Institute of Heilongjiang,Harbin 150080,China“,”Rice
论文部分内容阅读
To achieve the purpose of reducing farm non-point source pollution,we integrated site specific nitrogen management,precise irrigation,controlled drainage,and wetland eco-repair system in dike area of Taihu basin.During investigation,it had given prominence for the water and fertilizer coupling effects of precise irrigation and site specific nutrient management,the characteristics of integration on controlled irrigation,controlled drainage and wetland ecosystem non-point source pollution control.Then the water and fertilizer integrated management mode of paddy field was put forward in Taihu basin where the water production efficiency increased to 1.64 kg·m-3,water saved 37.8%,fertilizer use efficiency raised 15.4%,yield raised 10%,and N,P load decreased 26%-72%.The mod agricultural and farmland ecosystems that control and cut down the farm non-point source pollution came into being,which can be a reference by Taihu basin to control its agricultural non-point source pollution and eutrophicated water body.
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