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稻田杂草有三害,“三棱、芦草、稗”。三棱草在我场经过多年的人工拔除、轮作、翻晒、埋压、化学药剂防治、土壤改良、精耕细作、改变栽培方法等综合灭草措施,基本上已被控制住;芦草已经彻底消灭;当前对我场稻田危害最大的主要是稗草。特别是自1966年以来,由于土层感染稗子严重、除草季节劳力紧张、稗草种类增加、对稗草的生物学特性和成灾规律摸不清和防治方法不适当等原因,几年来几乎所有稻田都稗草丛生,严重地威胁着水稻生产。
Paddy weeds have three pests, “Trival, Lucao, barnyard ”. After a long period of artificial extraction, rotation, sunning, burying, chemical control, soil improvement, intensive cultivation and change of cultivation methods and other comprehensive measures for the control of weeds, the Sanxiancao has basically been controlled in our field; the reed grass has been completely eliminated; At present, the most harmful to our rice field is barnyardgrass. Especially since 1966, due to serious soil infection of barnyard grass, labor-intensive season of weeding, barnyard grass species increased, the biological characteristics of barnyard grass and the law of disaster and help control the law is not appropriate, etc., in recent years, almost all the rice fields Are barnyard grass, a serious threat to rice production.