棉花要不要整枝,向有争论。有人说整枝增产,有人说不整枝增产。究竟棉花是整枝好,还是不整枝好?怎样整枝经济效益高?为了回答这个问题,我们于1980年、1981年、1982年连续进行了整枝试验。现将试验结果简要整理如下。一、试验处理设计试验设在省农科院试验农场,地力肥沃,亩产皮棉200斤左右。分4个处理:1.不整枝(简称不整作对照);2.只打顶心(简 Need to prune cotton, to the controversy. Some people say that pruning increases, some say no pruning increase. Whether the cotton is good for pruning or not good for pruning? How to prune high economic efficiency? In order to answer this question, we conducted pruning tests in 1980, 1981 and 1982 consecutively. The test results are summarized below. First, the experimental design of the experiment set up in the Provincial Academy of Agricultural Experimental Farm, fertile land, about 200 pounds of lint per mu. Divided into four treatment: 1. Not pruning (referred to as not the whole control);