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1981年我县大面积推广了小麦叶龄指标促控法。在全县90万亩麦田中,实行双马鞍型(W型)管理的有23万亩,获得了显著的增产效果。综
In 1981, a large area of our county promoted the promotion of wheat leaf age index method. In the county 900000 acres of wheat fields, the implementation of double saddle type (W type) management of 230000 acres, access to a significant yield increase. Comprehensive