Controlled drainage on the paddy field- saving water irrigation and environment conservation of solution

Abstract

    It is should be considered that the more using fertilizer also causes the more non- point pollution. Controlling drainage not only improves efficiency in water using, but also reduces sufficiently the quantitative of blow off fertilizer. Base on the experiment carried on in HoHai University of water saving park-JiangNing campus area, this paper studies on the losing rules of nitrogen in paddy field under control drainage and the affect on the environment.