论文部分内容阅读
随着小麦宽幅疏播密植的推广,麦田杂草已成为农业生产上的严重问题。据五原县八个公社的典型调查,宽幅密植麦田一般每平方米有杂草200株左右,多者达2000株以上,对小麦生产威胁很大,为了更好地解决草害问题,从1975年以来,全县大力推广了用2.4-D 丁酯进行化学除草,每年推广10万亩左右。几年来的生产实践证明,用2.4—D 丁酯灭草效果明显,生产成本低,节约劳力,减轻劳动强度,有利于耕作制度改革和机械耕作,好处很多。
With the popularization of broad spreading of wheat, wheat weeds have become a serious problem in agricultural production. According to the typical survey of eight communes in Wuyuan County, there are about 200 weeds per square meter in broad and densely populated wheat fields, with more than 2,000 trees and more threatening wheat production. In order to better solve the problem of grazing grass from Since 1975, the county vigorously promoted the use of 2.4-D butyl for chemical weeding, promotion of about 10 acres per year. Over the past few years of production practice proved that the obvious effect of using 2.4-D butyl molybdate, low production costs, labor-saving, reduce labor intensity, is conducive to farming system reform and mechanical farming, a lot of benefits.