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从八十年代初在合江地区水渠和草湿地上发现一种叶片和叶鞘上带倒生绒毛的多年生禾本科植物,盾陆续侵入稻田,造成危害。经东北农学院田德昌教授鉴定确认为稻李氏禾。一、发生情况目前稻李氏禾发生面积较广,在合江地区的桦南、饶河、佳木斯郊区三个县(区)11个乡镇的22780亩稻田发生,一般零星群生,个别地块密度较大,每平方米株数高达1000株以上,严重影响水稻产量,甚至出现绝产地块。据统计绝产面积达150多亩,已成为
From the early 1980s, a perennial gramineous plant with inverted villi on leaves and sheaths was found on the drains and grass wetlands in Hejiang area, causing successive invasions of the shields into the paddy fields. Professor Tian Dechang identified by the Northeast Agricultural College identified rice Lee Wo. I. Occurrence At present, the area of Larix chinensis is relatively wide, and there are 22,780 mu of paddy fields in 11 townships in Huanan, Raohe and Jiamusi sub-districts in Hejiang area. Generally, sporadic population density, individual plot density Larger, the number of strains per square meter up to 1000 or more, seriously affecting the yield of rice, and even appear deadlock plots. According to statistics, an area of over 150 acres of dead, has become