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1983年和1984年进行的夏闲地保墒方法试验表明,采用麦糠或麦草覆盖的方法可以在0～2m土层多保蓄土壤水分54～64mm。用同样材料覆盖冬闲地,可使0～1m土层多保蓄土壤水分7.9～12mm,其中1/4以上集中在0～10cm土层,对春播作物播种出苗有利。
Experiments on soil moisture conservation in summer and winter in 1983 and 1984 showed that the method of covering with wheat bran or wheat straw could save soil moisture 54 ~ 64mm in 0 ~ 2m soil layer. Covering the winter fallow land with the same material can make the soil moisture of multiple preserving soil of 0 ~ 1m soil layer 7.9 ~ 12mm, more than 1/4 of which are concentrated in 0 ~ 10cm soil layer, which is good for sowing and planting spring crops.