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随着土地免耕、少耕等休闲制的推广，地表覆盖物数量大大提高，风蚀与水蚀得到大面积控制。在美国北部平原，对冬小麦实行免耕（NT）、少耕（MT）和作物残茬覆盖（SM）等休闲法，测定土壤蓄水量、降水贮存效率及它们之间的关系。试验表明，休闲法对收割后和冬闲期土壤蓄水量无显著影响；降水贮存效率冬闲期最高（约59％），夏闲期最低（13％－20％）。NT、MT法土壤蓄水量和降水贮存效率分别比SM高12％和16％。生产者利用休闲期降水与土壤蓄水量的关系，加强集约化程度，能够提高作物产量。
With the promotion of such leisure systems as no-tillage and less tillage, the number of surface coverings has greatly increased, and wind erosion and water erosion have been largely controlled. In the northern United States plains, casual methods such as no-tillage (NT), tillage (MT) and crop stubble coverage (SM) were applied to winter wheat to determine soil water storage, precipitation storage efficiency and their relationship. The results showed that there was no significant effect of leisure method on soil water storage after harvest and during winter fallow. Precipitation storage efficiency was the highest in winter and fallow (about 59%) and lowest in summer (13% -20%). The soil water storage capacity and precipitation storage efficiency of NT and MT methods were respectively 12% and 16% higher than that of SM. Producers take advantage of the relationship between precipitation and soil water storage during the leisure time to strengthen the degree of intensification and increase crop yield.