几种除草剂组合对蒜田杂草的防除效果

Efficacy of Different Herbicide Combinations on Weeds in Garlic Fields

为明确不同除草剂对蒜田杂草防除效果和对大蒜的安全性影响,进行了禾本科杂草与阔叶杂草混生的常规草相蒜田和阔叶杂草占据优势种群的蒜田除草剂防效试验,结果表明:对于常规草相蒜田,以综合防治禾本科杂草和阔叶杂草为目的,可以选择7%草酮·16%乙草胺·12%乙氧氟草醚复配剂或30%二甲戊乐灵·10%乙草胺·4%乙氧氟草醚复配剂;对于以荠菜为优势杂草种群的蒜田,可选择24%乙氧氟草醚;对于以猪殃殃及其他阔叶杂草为优势种群的蒜田,可选择12%草酮。

To determine the efficacy and selectivity to garlic of different herbicides,a chemical weed control field study was conducted at a location where both grass and broadleaf weeds were dominant.Since the aim was to integrate the con-trol of graminaceous and broadleaf weeds in garlic fields in the critical weed phase,several herbicides could be applied in-cluding 7%clomazone,16%acetochlor and 12%oxyfluorfen or 30% pendimethalin,10% acetochlor and 4% oxyfluor-fen.Formulated 24%oxyfluorfen and 12%clomazone could be applied to control shepherd＇s purse-dominated and Gali-um aparine var.tenerum-dominated weed communities in garlic fields,respectively.