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麦田杂草在我国有200余种,以一年生杂草为主,少数多年生杂草,习惯上分为阔叶杂草和禾本科杂草两大类,各种杂草除人工(或机械)锄草外,主要采用化学除草。现在生产中推广的是杂草冬前防治,对于杂草过多前期防治不及时的,可春季返青期补治。在小麦3~4叶、杂草2~3叶期到浇冻水之前是防治杂草的最佳时期。
There are more than 200 species of weed in our country, mainly annuals and a few perennial weeds. They are usually divided into broadleaf weeds and grass weeds. In addition to artificial (or mechanical) hoe Grass, the main use of chemical weeding. Now we promote the production of weed control in winter, too early for the prevention and treatment of weeds may not be timely, the spring back to the green governance. In the wheat 3 to 4 leaves, weeds 2 to 3 leaf period before pouring cold water is the best time to weed control.