江汉平原棉花排渍标准试验研究

Experimnt and Study of Undergrund Waterlogging Contrcl Criteria of Cotton in the Jiang--Han plain

根据天门农田灌溉排水试验站试验资料分析了江汉平原棉花对排水灌溉的需求。通过测坑控制地下水模拟渍水试验,对棉花生育期的适宜地下水位控制标准,在降水期间允许田间短期的滞水天数进行了试验研究。这些成果将为渍害田改造提供工程规划设计和经济论证方面的依据。

The demand of irrigation and drainage of Cotton in the jiang-Han plain has been analysed according to the experiment data of the Tianmen farmland irrigation and drainage experiment station. The Suitable groundwater table control criteria of the cotton growing stages and the permissible field water retarded days in the raining period have been studied by the groundwater simulation experiment in pits. The results will provid a basis for planning and design and eco- nomic evaluation of groundwater damaged field reform projects.