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一、应注意旱塬秋荒地的化学除草晋中地区总耕地有2/3为丘陵旱地,春播作物占总播种面积的2/3左右。一般年份春播作物苗期杂草较少,进入雨季后常形成严重草荒。我区目前化学除草面积约6万亩,其中旱地还占不到1/6,因此应注意早地秋田的化学除草。二、“播后苗前”施药应当改变现有除草剂中,绝大多数药剂的施用期是“播后苗前”。我区的实践证明,此
First, we should pay attention to the chemical weeding on the autumn and drought in dryland in Jinzhong area 2/3 of the total arable land in hilly areas, spring sowing crops accounted for about 2/3 of the total sown area. Spring crops generally less spring weeds seeding weeds often enter the rainy season after the formation of serious shortage of grass. At present, the chemical weed area in our district is about 60,000 mu, of which the dry land also accounts for less than 1/6. Therefore, we should pay attention to the chemical weeding of Akita early. Second, “after sowing seedlings” should be applied to change the existing herbicides, most of the application period of the drug is “after sowing seedlings.” Our practice shows that this area