我县三熟制面积常占80％以上。但每年后季稻秧苗,常因高温窜长,形成苗高蘖少素质差,加之移栽时晴天烈日居多,容易造成伤苗败苗,影响早活早发和高产稳产。我县曾习惯以割叶控苗为主,自1982年起,我们利用乙烯利矮化育秧,在连续多点试验的同时,不断扩大推广面进行广泛观察,1983年全县使用面积达1.15万亩以上,取得了良好效果。 My county three cooked area often account for more than 80%. However, the annual rice seedlings after the season, often due to high temperature channeling, the formation of poor quality of seedlings tall tiller, coupled with sunny days when the transplanting are mostly prone to injury Miao Miao Miao affect the early onset of early and high yield. My county has used to cut the leaves of the main control seedlings, since 1982, we use vinylidene dwarfing seedlings in a row more trials, while expanding the promotion of a wide range of observations, the county in 1983 the use of an area of ​​11,500 Mu above, has achieved good results.