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棉花恋青晚熟的现象,在我省南北方棉区都普遍存在,影响后期棉花产量。沿江棉区还将延迟让茬期,淮北棉花易遭霜冻害。因此,如何促进棉花早熟,增加霜前花产量是一个迫切需要解决的问题。为此特进行两种药剂催熟效果的研究。现将试验结果综述如下。一、试验材料和方法 (一) 试验药剂:①40％乙烯利,系上海彭浦化工厂产品;②40％乙二磷酸,系河北化工学院与河北沙城农药厂联合研
Cotton love green late-maturing phenomenon, in our province are widespread north-south cotton area, affecting the latter part of cotton production. Cotton fields along the Yangtze River will delay stubble, cotton in Huaibei vulnerable to frost damage. Therefore, how to promote cotton precocity and increase frost flower yield is an urgent problem to be solved. For this special study of two agents ripening effect. The test results are summarized below. First, the test materials and methods (A) test agents: ① 40% ethephon, Department of Shanghai Pengpu Chemical Products; ② 40% of ethylene bisulfate, Hebei Institute of Chemical Technology and Hebei Shacheng Pesticide Factory joint research