二磺·双氟·氯氟吡复配制剂防除小麦田杂草的效果及对养分的影响

Effect of mesosulfuron-methyl·florasulam·fluroxypyr-meptyl on weed control,nutrient and yield in wheat field

采用田间试验研究了26%甲基二磺隆·双氟磺草胺·氯氟吡氧乙酸异辛酯可分散油悬浮剂防除小麦田主要杂草的效果,及杂草防除后对氮、磷、钾及水分的影响。结果表明,施用26%甲基二磺隆·双氟磺草胺·氯氟吡氧乙酸异辛酯可分散油悬浮剂防除小麦田杂草效果显著,对牛繁缕[Malachium aquaticum (L.)Fries]、猪殃殃(Galium aparine L.)、大巢菜(Vicia sativa L.)、菵草(Beckmannia syzigachne)等杂草均有良好防效,总鲜重防效达到91.5%~97.3%,显著优于3种对照药剂。杂草防除后,显著降低了杂草对田间氮、磷、钾和水分的消耗,有效改善了田间的水肥条件。26%甲基二磺隆·双氟磺草胺·氯氟吡氧乙酸异辛酯可分散油悬浮剂处理的小麦田产量达3 456.27~3 591.27 kg/hm^2,增产效果显著,较清水对照增加36.0%~41.2%,每公顷增收2 101.65~2 412.15元。

The effect of 26% mesosulfuron-methyl·florasulam·fluroxypyr-meptyl oil dispersion(OD)on weed control in wheat field was studied.The wheat yield,the content of N-P-K and water were also analyzed after weed control.The results indicated that the efficacy of weed control was remarkable by 26% mesosulfuron-methyl·florasulam·fluroxypyr-meptyl OD in wheat field.The control efficacy of compound formulation on Malachium aquaticum,Galium aparine,Vicia sativa and Beckmannia syzigachne was ranged from 91.5%to 97.3%,which was significantly higher than three individual herbicides.The accumulation of weed water and nutrients was significantly decreased after weed control.The wheat yield was 3456.27 to 3591.27 kg/hm^2 after treated with 26%mesosulfuron-methyl·florasulam·fluroxypyr-meptyl OD,which increased by 36.0%~41.2% compared to untreated control.Moreover,the yield income increased by 2101.65~2412.15 Yuan/hm^2.