吡氟酰草胺2种混配剂防除覆膜蒜田杂草研究

将吡氟酰草胺原药配制成60%吡氟酰草胺·扑草净WP和60%吡氟酰草胺·乙草胺WP两种混配剂,每种混配剂分设有效成分720、900、1350 g/hm~2三个剂量,防除覆膜蒜田杂草。试验结果为吡氟·扑的株防效和鲜重防效为93.70%～99.17%和92.42%～99.72%,吡氟·乙的株防效和鲜重防效为91.96%～96.17%和85.11%～97.12%,除草效果都好于配伍单剂扑草净和乙草胺,且残效期长,对作物大蒜安全,增产效益显著。

Research on the Two Mixtures of Diflufenican for Controlling Weeds in Garlic Field

60%diflufenican·prometryne WP and 60%diflufenican·acetochlor WP were mixtures of diflufenican.The active ingredients of the two mixtures were 720,900 and 1,350g/hm~2 respectively which were used to control weeds in garlic field under film mulching.The results showed that the control effect of weeds number and fresh weight of diflufenican·prometryne treatment were 93.70%-99.17%and 92.42%-99.72%,while diflufenican·acetochlor treatment were 91.96%-96.17%and 85.11%-97.12% respectively.Two mixtures were last long and their controlling effects were better than prometryne or acetochlor formulations.The two mixtures were safe to garlic and could increase garlic yield significantly.