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看麦娘(Alopecurus aequalis Sobol.)已成为我县稻茬麦田的恶性杂草,据笔者1990—1991年调查,我县每年有50%以上的稻茬麦田受害较重,密度一般每平方米500—8000株,严重的达到23000余株。小麦由此一般减产10—30%,重的减产50%以上,个别地块甚至绝产。而且看麦娘密度不断增高,受害面积不断扩大,减产幅度不断增高,看麦娘已成为我县稻茬麦生产的严重障碍。为了有效地控制看麦娘的危害,确保稻茬麦的正常生产,笔者对稻茬麦田看麦娘猖獗危害的原因
Alopecurus aequalis Sobol. Has become a malignant weed in the rice fields in our county. According to the author’s survey of 1990-1991, over 50% of the rice stubble fields in our county are seriously affected and the density is generally 500 per square meter -8000 strains, severe to reach more than 23000 strains. This general cut 10-30% of wheat, heavy cut more than 50%, even individual plots of land. But also to see the density of Amargardus growing, the victim area continues to expand, increasing the rate of increase, to see the Aman has become a serious obstacle to the production of rice stubble in our county. In order to effectively control the harm to see the Amaryllis, to ensure the normal production of rice stubble, the author on the wheat stubble in the field to see Mai Niang rampant harm