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通过在中国农科院商丘试区实施低压管喷 ,结合麦棉套种作物需水特点、农田小气候相互关系进行了农业高效用水研究与实践 ,揭示出低压管喷麦田较连续畦灌节水 4 5%～ 4 7%,棉田较连续沟灌节水 4 3 %,小麦和棉花水分生产效率达 1 .88～ 1 .95kg/ m3和 0 .3 2 kg/ m3较高水平的节水高产机理
Through the low pressure pipe spraying in Shangqiu test area of Chinese Academy of Agricultural Sciences, combined with the crop water requirement characteristics of wheat and cotton intercropping, the research and practice of agricultural high efficiency water use in microclimate of farmland, it was revealed that the low pressure pipe- ~ 47%. The water saving of cotton field is 43% more than that of continuous ditch irrigation, and the water productivity of wheat and cotton reaches 1.88-1.95 kg / m3 and 0.32 kg / m3.