果园杂草的危害是目前果园管理的一个重要环节，也是最薄弱的环节。果园杂草的特点是种类多、面积广、密度大、生命力强，人工锄草费工费时，经常因劳动力不足而延误农时。近年来我们利用果树和杂草高度上的位差进行果园杂草的化学防除试验，取得了非常好的效果。根据调查... Orchard weed harm is an important part of orchard management, but also the weakest link. Orchard weeds are characterized by many types, a wide area, high density, strong vitality, artificial weeding time and labor costs, often due to lack of labor and delay farming time. In recent years, we use the height difference between the fruit trees and weeds for chemical control of weed weeds and achieved very good results. According to the survey ...