大豆田除草剂混用对氟乐灵抗性杂草控制作用的研究

Study on Control Effect of Mixing of Herbicides to Resistant Weeds on Soybean Field

盆栽试验和田间试验结果表明，当前大豆田普遍应用的１２ 种除草剂混用对豆田杂草防除效果很好，整个生育期最低防效达８８ ．６％ ，而对６ 种氟乐灵抗性杂草的控制效果则不同。速收及其混用对鸭跖草特效，特别是速收＋ 普施特和广灭灵＋ 速收＋ 乙草胺混用能兼治苍耳和繁缕，是理想的混合使用。阔草清及其混用对繁缕和龙葵特效，阔草清＋ 普施特＋ 乙草胺对６ 种抗性杂草均有较好控制作用。虎威＋ 精稳杀得和杂草焚＋ 精稳杀得的盆栽试验对抗性杂草防效较好，但在大田试验的防效不如土壤处理剂的混用，各地应根据杂草基数和种类合理选用。

Twelve kinds of mixing of herbicides spray could effectively control weeds through experiment of basin cultivation and soybean field.The lowest effect reached to 88.1% for all.However the effect of them to six resistant weeds to trifluralin appeared distinct difference.The Sumisoya and its prescriptions.could destroy dayflower,especially Sumisoya+Pursuit and Sumisoya+Command+acetochlor also controlled cocklebur and bind weed.They were ideal prescription.The Broadstrike and the mixture to bindweed and black nightshade showed especial effect.The Broadstrike+Pursuit+acetochlor controlled six resisting weeds very well.The effect of fomesafen+fluazifop-butyl and acifluorfen+fluazifop-butyl was not better than it of mixing were rationally applied on the basis of the base and type of weeds.