【摘要】 采用田间试验研究了288 g/L氯氟吡氧乙酸异辛酯乳油防除小麦田主要阔叶杂草的效果,及杂草防除后对氮、磷、钾及水分的影响。结果表明,施用288 g/L氯氟吡氧乙酸异辛酯乳油防除小麦田杂草效果显著,对猪殃殃(Galium aparine L.)、牛繁缕[Malachium aquaticum(L.)Fries]和大巢菜(Vicia sativa L.)均有良好防效,60 d后综合鲜重防效达90.3%～99.9%。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。288 g/L氯氟吡氧乙酸异辛酯乳油处理的小麦田产量达3 162.3～3 401.7 kg/hm2,与清水对照相比增产效果显著,增产达23.0%～32.3%,每公顷增收1 358.84～1 909.46元。更多还原

【Abstract】 The effect of 288 g/L fluroxypyr-mepthyl EC on broadleaved weed control in wheat field was studied. The wheat yield,the content of N-P-K and water were also analyzed after weed control by fluroxypyr-mepthyl.The results indicated that the efficacy of weed control were remarkable by 288 g/L fluroxypyr-mepthyl EC in wheat field. All showed control efficacy on Galium aparine,Vicia sativa and Malachium aquaticum with a total fresh weight control effect from 90.3% to 99.9% after 60 days. After weed control,the consumption of N,P,K and water by weeds was significantly decreased,and the water and fertilizer conditions in the field were effectirely improved. The wheat yield was ranged 3 162.3 to 3 401.7 kg/hm2 after treated with 288 g/L fluroxypyr-mepthyl EC,which increased by 23.0%～32.3% compared to untreated control. Moreover,the yield income increased by 1 358.84～1 909.46 yuan/hm2.更多还原