杂草是棉苗的大敌。它不仅与棉苗争肥、夺地,而且还助长病虫害的传播,从而妨碍棉苗的正常生长,影响棉花产量和品质。为此,广大贫下中农长期以来与杂草进行着顽强的斗争。近年来,在采用中耕除草等一般管理措施的同时,对棉田化学除草的科学实验越来越受到重视。今年,我们遵照毛主席关于“人们为着要在自然界里得到自由,就要用自然科学来了解自然,克服自然和改造自然,从自然里得到自由”和“一切经过试验”等伟大教导,在上级党委的领导和支持下,在上海红卫农药厂、上海植物生理研究所的指导和帮助下,与低塘、 Weeds are the enemy of cotton seedlings. It is not only fight with cotton seedlings, deprive the land, but also contribute to the spread of pests and diseases, thus hinder the normal growth of cotton seedlings, affecting cotton yield and quality. For this reason, the vast majority of poor and middle peasants have long been engaged in a stubborn struggle against weeds. In recent years, while adopting general management measures such as cultivating weeds, more and more attention has been paid to scientific experiments on chemical weeding in cotton fields. This year, in accordance with Chairman Mao’s great teachings of “people are free to use natural science to understand nature, to overcome nature and transform nature, to be free from nature” and “to undergo all tests” in order to be free in nature Under the leadership and support of the party committees at the higher level, with guidance and assistance from Shanghai Hongwei Pesticide Factory and Shanghai Institute of Plant Physiology,