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1974年用50%水剂矮壮素(陕西化工设计研究院生产的)进行小麦防倒试验,在小麦起身至拔节期间(第一节伸长0.5～1寸),每亩喷液(0.5%浓度)120～150斤,防倒增产效果好,1975年大面积示范,效果基本相同.二年结果,每亩净增77.5～214.4斤,增产10.5～38.5%(一)对小麦营养生长的影响.矮壮素浓度在0.1～0.7%范围内,拔节时喷施,对小麦生长都有抑制作用.浓度越大,株高越低(主要是基部一、二、三节缩短.随着浓度的增加,茎节直径也逐渐
In 1974, 50% aqua regia (produced by Shaanxi Chemical Design & Research Institute) was used to carry out the wheat fall prevention test. During the period from the start of wheat up to jointing (0.5-1 inch in the first section) Concentration) of 120 to 150 pounds, anti-down and increase production is good, a large area demonstration in 1975, the effect is basically the same .In two years, the results of a net increase of 77.5 to 214.4 kg per mu, yield 10.5 to 38.5% (A) of the impact on wheat vegetative growth The concentration of chlormequat was in the range of 0.1-0.7%, spraying at jointing stage inhibited the growth of wheat.When the concentration was higher, the plant height was lower (mainly the first, second and third basal part shortened.With the increase of the concentration , Stem diameter gradually