【摘要】 [目的]通过田间药效试验明确30%2,4-滴丁酯·辛酰溴苯腈·烟嘧磺隆OD对玉米田杂草的防治效果、最佳使用剂量及对玉米的安全性。[结果]30%2,4-滴丁酯·辛酰溴苯腈·烟嘧磺隆OD可有效地防除玉米田杂草。适宜的施药时间为玉米3~5叶期,一年生禾本科杂草2~4叶,阔叶杂草2~5 cm时进行茎叶喷雾处理,适宜的施药剂量为420~630 g a.i./hm2。[结论]30%2,4-滴丁酯·辛酰溴苯腈·烟嘧磺隆OD对玉米田禾本科杂草和阔叶杂草有良好的防效,对玉米安全。更多还原

【Abstract】 [Aims] Based on the field trials, the efficacy, optimum dosage and safety of 2,4-D butylate·bromoxynil octanoate·nicosulfuron 30% OD was determined for controlling weeds in corn fi eld. [Results] The result showed that the herbicide could effectively control the weeds in corn fi eld. The optimal treatment stage of 2,4-D butylate·bromoxynil octanoate·nicosulfuron 30% OD is at 3-5 leaves stage of corn and 2-4 leaves stage of grass weeds or 2-5 cm high of broadleaf weeds. The optimum dosage is 420-630 g a.i./ha. [Conclusions] 2,4-D Butylate·bromoxynil octanoate· nicosulfuron 30% OD showed good effi cacy on grass weeds and broadleaf weeds in corn fi eld, and safe to corn.更多还原