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近几年来,免耕栽培已成为我县平原水稻产区大麦栽培的主要方式,而大麦栽种又以撒播为主,人工除草比较困难.以往一些广谱性化学除草剂如草甘磷等在播前进行土壤处理不能一次性解决草害,造成大麦中后期杂草的再度严重危害.同时,绿麦隆的除草效果近几年急剧下降,且对环境条件要求高.为了寻求一种适合本地特点的高效、安全、经济的新型除草药剂,我们于1990～1991年度进行了绿黄隆和甲磺隆防除大麦田杂草的试验,现将试验结果简报如下:
In recent years, no-tillage cultivation has become the main mode of barley cultivation in the paddy-producing areas of the plain of our county, while barley planting and spreading are the main methods, and artificial weeding is more difficult.In the past, some broad-spectrum chemical herbicides such as glyphosate Before the soil treatment can not be a one-time solution to grass damage, resulting in the late barley weeds once again serious harm.Meanwhile, the herbicide effect of chlorothalonil sharp decline in recent years, and the high environmental requirements.In order to find a suitable local characteristics Efficient, safe and economical new herbicide, we carried out the test of the control of weeds in the barley field of chlor-flavonoids and metsulfuron from 1990 to 1991, and the test results are summarized as follows: