近几年我场对麦田阔叶杂草的化除较重视,而忽视了对禾本科杂草的防除工作,导致麦田硬草(铁丝草)的发生愈来愈重。1987年,全场硬草发生面积仅50余亩,主要发生在田头路边,到1990年,硬草已扩展到2200多亩,成为麦田的主要恶性杂草,一般减产 In recent years, my field of wheat broadleaf weeds in addition to pay more attention, while ignoring the control of weeds weeds, resulting in hardened wheat field (wire grass) more and more serious. In 1987, there was only about 50 mu of hard grass in the whole area, mainly occurring along Tian Tau Road. By 1990, the hard grass had been expanded to more than 2,200 mu and became the main weed weed in wheat fields.