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我市常年小麦种植面积２２．６万亩，杂草发生面积１７万亩，造成危害的达８～１０万亩。麦田杂草优势种为猪殃殃、野油菜和野燕麦，这类杂草发生面积广、密度大，已成为影响小麦产量的一个重要因素。据调查，一般每平方米有２０～３０株，多者达１０５～２５０株，严重的...
The annual planting area of wheat in our city is 22.6 million mu and the weed area is 17 million mu, causing about 8-10 million mu of damage. The dominant species of wheat weeds are Galium aparine, wild rape and wild oats. These weeds occur in a wide area with large density and have become an important factor affecting wheat yield. According to the survey, there are 20 to 30 plants per square meter, with more than 105 to 250 plants in total, with serious ...