棉田冬灌是指在夜冻昼化的初冬,进行棉田贮水灌溉。河北省黑龙港地区属半干旱棉区,春旱常影响棉花适时播种和一播全苗,导致棉花迟发,限制增产。1984～1985年我们利用冬闲期进行了旱地棉田贮水灌溉技术研究。结果表明,在严冬季节进行棉田 Cotton field winter irrigation refers to the early winter night, the water storage irrigation cotton. Heilongjiang Province, Heilongjiang Province is a semi-arid cotton area, spring drought often affect the timely sowing and sowing of cotton, resulting in delayed cotton, limiting the yield. From 1984 to 1985, we used the winter fallow period to study the technology of water storage irrigation in dryland cotton fields. The results show that in the winter season cotton fields