北京地区的旱田作物主要有玉米和小麦,玉米田的化学除草还在开始阶段,小麦田的化学除草已初具规模。为了更合理地使用除草剂,提高防治效果,扩大应用范围,增加作物产量和质量,根据有关资料和试验,现将玉米和小麦化学除草的使用技术和注意问题介绍如下以便更好地为郊区农业生产服务。 The dryland crops in Beijing mainly include corn and wheat. The chemical weeding in corn fields is still in its infancy. The chemical weeding in wheat fields has taken shape. In order to make more rational use of herbicides, improve the control effect, expand the scope of application and increase the yield and quality of crops, according to the relevant data and experiments, the techniques and precautions of chemical weeding of corn and wheat are introduced as follows so as to better serve the rural agriculture Production services.