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我省洪洞县城关公社李堡大队1976年秋开始在200亩棉田上采用套种撒播小麦,产量显著高于腾茬整地后条播的麦田。以后,这个大队每年约扩大200亩棉田套种撤播小麦,产量也逐年增长,1978年至1980年平均亩产分别为584、754和802斤,即小麦单产随着套种撒播面积的扩大而增长。1980年秋季967亩棉田全部套种撒播小麦,面积占到总麦田面积的60%以上,使全大队1,605亩小麦平均亩产高达931斤,而千斤以上高产麦田75%是套种撒播的。
Li Hong County Chengguan commune Li Fort Brigade began in the autumn of 1976 began to use 200 acres of cotton sowing wheat, the yield was significantly higher than the stubble stubble after sowing wheat fields. Since then, the brigade has expanded about 200 mu of intercropping and withdrawing of cotton fields each year, and its output has also increased year by year. From 1978 to 1980, the average yields per mu were 584,754 and 802 jin, respectively. That is, the yield of wheat increased with the spreading of intercrops. In the fall of 1980, 967 mu of cotton fields all sowed wheat, covering an area of more than 60% of the total wheat field area. As a result, the average yield per mu of 1,605 mu of wheat in the entire brigade was as high as 931 kg, while that of 75 percent of the high-yielding wheat fields over 800 kg was interplanted.