为了运用和推广小麦“叶龄指标促控法”新技术,促进我省小麦生产发展,1981年秋播时我们在全省六个地(市)的22个县水地麦田安排了对比试验点47个,面积108.1亩;示范点25个,面积2,052亩,叶龄与穗分化对应关系观察点9个。当年,太原市推广了5.5万亩。通过试验、示范,初步获得了增产、稳产、节约投资、提高经济收益的效果。 In order to use and popularize the new technology of wheat “leaf age index control method” and promote the wheat production in our province, in the autumn of 1981, we arranged the comparative test point 47 in the water field of 22 counties of six counties (cities) in the province A, an area of ​​108.1 acres; 25 demonstration sites, an area of ​​2,052 acres, leaf age and spike differentiation corresponding observation point 9. That year, Taiyuan promoted 55,000 mu. Through experiments and demonstrations, the preliminary results of increasing production, stabilizing production, saving investment and increasing economic returns have been obtained.