除草剂甜菜安、甜菜宁与乙呋草黄的复配及其药效

Mixture of Desmedipham,Phenmedipham and Ethofumesate and Their Efficacy Against Weeds in Sugar Beet Field

采用盆栽喷雾法筛选了甜菜安、甜菜宁、乙呋草黄的复配配方,结果表明,组合70+90+110或90+90+90为优选配方。对21%甜菜安.甜菜宁.乙呋草黄乳油进行了2年3地的田间试验,结果表明,在有效成份1260～1680 g/hm2下,可以较好地防除阔叶杂草和部分禾本科杂草。本研究为甜菜田除草剂的研发提供了有益参考。

The formula of mixture was screened by pot-spray.The result indicated that the combination of desmedipham,phenmedipham and ethofumesate was good at ratio of 70 ＋ 90 ＋ 110 or 90 ＋ 90 ＋ 90.The six field trials showed that 21% EC was higher effective to control broad leaf weed and some grass weed at the dosage of a.i.1260-1680 g/hm2.This study was very useful to research and develop herbicides for sugar beet field.