1970年以来,我们在上海植物生理研究所、浙江省农科院的指导和协助下,进行了近15000亩棉田(其中1977年4000亩)的化学除草试验、示范和推广,取得了显著效果。试验方法(一)供试药剂品种80%高度灵、80%达克灵、25%克勃列斯、25%绿麦隆、50%除草剂一号(南开一号)、25%敌草隆、20%敌草隆、50%扑草净、25%除草醚、10%除草醚、20%甲基砷酸二钠。(二)药剂配制及施药方法 Since 1970, with the guidance and assistance of Shanghai Institute of Plant Physiology and Zhejiang Academy of Agricultural Sciences, we conducted chemical weeding experiments, demonstration and popularization of nearly 15,000 mu of cotton fields (including 4,000 mu in 1977) and achieved remarkable results. Test methods (a) of the tested varieties of drug 80% highly spiritual, 80% of dakarin, 25% grams of Leslie, 25% chlorothalonil, 50% herbicides on the 1st (Nankai), 25% Diuron , 20% diuron, 50% prometryn, 25% weedin, 10% weedin, 20% disodium methyl arsenate. (B) pharmaceutical preparation and application methods