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在半干旱地区,如大平原,一些冬小麦作物在风蚀潜伏期前(12月～1月)经常不能提供足够的土壤覆盖,来防止剧烈的土壤侵蚀和喷沙对冬季小麦的破坏。1984和1985年,以59kg/ha的种籽量交叉种植的小麦(先南北向,后东西向)比同样种籽量采用常规方法(东西向)种植的小麦,在潜伏期前产生的土壤覆盖高得多。118kg/ha种籽量交叉种植的小麦没增加地表覆盖。1984年,交叉种植与常规种植处理的潜在风蚀量分别降低3.1和21.8t/ha/yr。1985年分别降低0.4和1.4t/ha/yr。两个季节各处理之间的作物产量均无较大差别。不管怎样,由于降雨量比较适宜,从1984年起,粮食产量的增长幅度是很大的。
In semi-arid areas such as the Great Plains, some winter wheat crops often do not provide enough soil cover before the wind erosion latency (December-January) to prevent violent soil erosion and sandblasting damage to winter wheat. In 1984 and 1985, wheat planted at 59kg / ha (pre-north-south and back-west) had higher soil cover before incubation due to the same seed than wheat grown by conventional methods (east-west) Much more. Wheat cross-planted at 118 kg / ha did not increase surface coverage. In 1984, the potential wind erosion of cross-planting and conventional planting decreased by 3.1 and 21.8 t / ha / yr, respectively. Decreased by 0.4 and 1.4 t / ha / yr in 1985 respectively. There was no significant difference in crop yields between treatments for the two seasons. In any case, since 1984, the increase in food production has been significant due to the relatively suitable rainfall.