改造冬水、下浊田,要求一台(块)田应有一个闸门和一个进水孔配套,以保证引水渗灌。根据我县两年的实践,设计浅水闸与深水闸相比,省工、省时、省投资,进水容易,深受农户欢迎。浅水闸应设计在工程排灌渠经过、有明显落差的相邻两田块相接的地方。其办法是,从上一块田的排灌渠底水平向下一块田延出1.5—2米,其外再加设跌水。由于相邻二田块之间有明显的落 Transformation of winter water, under the muddy fields, requiring a (block) field should have a gate and a water hole matching, in order to ensure water seepage irrigation. According to my county two years of practice, compared with the design of shallow sluice shallow sluice, labor-saving, time-saving, provincial investment, water easily, welcomed by farmer. Shallow sluices should be designed in the project irrigation and drainage through, there is a clear gap between the adjacent two fields docking. The solution is to extend 1.5-2 meters downwards from the bottom of the drainage and irrigation canal in the previous field and add another drop of water outside. Due to the obvious drop between two adjacent fields