在气温较低的季节,为了使蔬菜提早上市卖个好价钱,近年来,常采用覆盖地膜的方法增温、保温来促进蔬菜早熟增产,同时应用药剂除草,起到省工增效的作用。但是,多年膜内化学除草的经验教训告诉我们,如果选用的除草剂品种不当,或施用方法有误,一会使杂草不能根除,二会使蔬菜产生药害,三会污染环境,四会降低蔬菜的市场价值。为了充分发挥除草剂的效果,现就茄果、豆类、叶菜类蔬菜宜用的除草剂介 In the season with a lower temperature, in order to make vegetables marketed early for a good price, in recent years, the method of covering the plastic film is often used to increase the temperature and heat insulation to promote the early yield increase of vegetables. At the same time, application of the herbicide to weeding has played a role of saving labor and increasing efficiency. However, the many years of experience in membrane chemical weeding have taught us that if the improper variety of herbicides to be used or the method of application are used incorrectly, weeds can not be eradicated for one time, and phytotoxicity will be caused to the vegetables in the second place. Three will pollute the environment, Reduce the market value of vegetables. In order to give full play to the effect of herbicides, now on the soya, beans, leafy vegetables suitable herbicide