论文部分内容阅读
农得时是美国杜邦公司近年发明和研制出来的一种磺酰脲类新型除草剂.除草机理是,敏感杂草通过茎叶、根部将药吸收传导到体内,抑制主要氨基酸的生物合成而阻止叶、根正常生长,导致杂草顶部嫩叶逐渐向下变黄、萎缩、坏死,达到灭草的目的.这种除草剂于1985年引进我国,先经黑龙江、上海、广东等地试验,证明是当前防除稻田多种阔叶杂草和部分莎草科杂草较好的除草剂.1987—1988年在我省沈阳、辽阳、抚顺等地试用,证明对泽泻、鸭舌草、
Agricultural income when the United States DuPont invented and developed in recent years, a new type of sulfonylurea herbicides. Herbicidal mechanism is that sensitive weeds through the stems and leaves, the root absorption of the drug conduction to the body, inhibit the main amino acid and prevent the biosynthesis and prevent The normal growth of leaves and roots led to the yellowing, shrinkage and necrosis of the young leaves at the top of weeds, which reached the goal of extinguishing grass .This herbicide was introduced into our country in 1985 and was first tested in Heilongjiang, Shanghai and Guangdong. Is the current control of a variety of broad-leaved paddy weeds and some sedge weeds better herbicides 1987 to 1988 in Shenyang, Liaoning, Fushun and other places to prove that the Alisma orientalis,