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薄荷是我地区的一种主要经济作物,其生长期长、杂草种类多,特别在二刀期间,草害相当严重。据1983～1985年对我地薄荷产区的调查情况来看,常见杂草有21种,分属18科,禾本科杂草占杂草总数的78.3～88.7%,一般二刀薄荷地每平方尺有草57.8株,折亩有草34.68万,最严重的田块每平方尺有草138株,折亩有草82.8万株,有60%以上的田块在三级危害以上,每亩地因杂草危害平均减产2～3成,甚至形成草荒。1983年以来,我们对薄荷地的杂草种类、消长及对产量的损失作了调查研究,并用国产的敌草隆等和进口的吡氟禾草灵开展了化学除草试验、示范和大面积的推广应用,现将结果报告如下。
Mint is a major cash crop in my area, with a long period of growth and many types of weeds, especially during the two-blade period, where grass weeds are quite severe. According to the survey from 1983 to 1985 in the field of peppermint, there are 21 common weeds, belonging to 18 families. Gramineous weeds account for 78.3% to 88.7% of the total weeds. In general, Ruler grass 57.8, fold acre grass 346,800, the most serious plots of grass per square foot there are 138 plants, fold acres of grass 828,000, more than 60% of the plots in the three above the hazard, per mu of land Due to weed damage on average reduced 2 to 3 percent, and even the formation of grassland shortage. Since 1983, we conducted a survey on the types of weeds, their growth and the loss of yield in peppermint fields. We conducted chemical weeding experiments with domestic diuron and imported fluazifop-day, demonstrating that large-scale Promote the application, the results are reported as follows.