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麦秸覆盖农田，是在作物播种后至出苗前，将１０ｃｍ左右长的麦秸均匀地撒在田面。这一技术措施有减少田间无效蒸发、节约灌水量、提高水资源利用率的作用；对冬小麦可节水１．９％～７．２％，增产１．５％～１３．４％。灌水次数少时，增产率显著；此技术节水增产的原因，是基于麦秸覆盖，减少了棵间蒸发，和具有保温、提高肥力的效果。此外，还有一定的社会及生态效益。
Wheat straw cover farmland, is in the crop sowing until before emergence, about 10cm long straw evenly spread in the field. This technical measure has the effect of reducing ineffective evaporation in the field, saving irrigation amount and improving utilization of water resources; it can save 1.9% -7.2% and increase 1.5% -13.4% of winter wheat. When the number of irrigation is small, the rate of yield increase is remarkable. The reason for saving water and increasing yield of this technology is based on wheat straw covering, reducing the evaporation among trees, and having the effects of heat preservation and fertility enhancement. In addition, there are certain social and ecological benefits.