我省春季少雨干旱,特别是3～5月份,发生干旱的频率高,影响范围广,是实现棉花一播全苗的一大障碍。因此,需要搞好棉田春灌,以保证棉花足墒播种。棉田春灌,就是利用棉花非生育期内的水利资源,增加棉田的水分储量。棉田春灌用水量大,能达到底墒和表墒都较好的状态,既有利于实现棉 In our province, there is little rain and drought in spring, especially from March to May. The frequency of occurrence of drought is high and the impact is wide. It is a major obstacle to the realization of planting cotton seedlings. Therefore, we need to do a good job in spring cotton irrigation, cotton moisture to ensure sowing. Spring cotton irrigation, is the use of non-fertile cotton water resources within the period, increasing cotton field water reserves. Cotton field spring irrigation water, can reach the end of moisture and table moisture are better, both conducive to the realization of cotton