随着种植业结构的调整,我区农作物布局进行了较大的变动:压缩了棉田,播种小麦。1984年秋种,小麦播种面积达到356万亩,其中棉茬麦占50万亩。棉茬麦播期晚,多数在“霜降”之后。按常规栽培方法,年前不分蘖,冻害重、穗数少,产量低。为了改晚茬麦为早茬麦,低产变高产,我们从1981年秋种开始至1985年夏收止,先后四年在 With the adjustment of planting structure, the layout of crops in our area has undergone major changes: compressed cotton fields, sowing wheat. In the autumn of 1984, the sown area of ​​wheat reached 356 million mu, of which wheat crop accounted for 500,000 mu. Cotton stubble sowing late, most of the “cream down.” According to conventional cultivation methods, years ago, no tillers, heavy frost damage, spike few, low yield. In order to change the late crop of wheat as early crop wheat, low yield and high yield, we started from the autumn of 1981 to the end of the summer of 1985, four years after