在批邓和反击右倾翻案风的伟大斗争中,我场革命职工深入学习革命理论,密切联系生产实际,试用化学除草剂消灭麦田杂草,取得显著效果。 1.麦田杂草为害情况:据调查,我县麦田杂草有二十余种,以麦蒿最多(占70％以上),荠菜次之(占10％左右。)。今年调查地块每平方米面积上平均有杂草三十五点七株,小麦一百○七株,杂草占小麦总株数的三分之一以上,稀播繁殖的育种田,杂草比小麦多四、五倍。每年因杂草为害造成小麦减产10％左右。 2.化学除草剂的效果:据三年来使用后的调查结果看,2,4—D钠盐对杂草杀伤率达 In the great struggle against Deng Xiaoping and the right-wing overthrow of the wind by the court, the revolutionary workers in our field studied in depth the revolutionary theory, closely linked with the actual production, and tried chemical herbicides to eliminate weeds in wheat fields and achieved remarkable results. 1. Weed damage in wheat fields: According to the survey, there are more than 20 kinds of wheat weeds in our county, most of which are wheat straw (accounting for more than 70%), followed by shepherd’s purse (about 10%). This year, the area surveyed per square meter of weeds on average, an average of 35.7 weeds, 107 wheat lines, weeds accounted for more than one-third of the total number of wheat, spawning breeding farm, weed ratio Wheat four or five times more. Each year due to weeds caused by wheat yield reduction of about 10%. 2. The effect of chemical herbicides: According to the survey results after three years of use, 2,4-D sodium salt weed killing rate of up to