试验主要研究不同用量的烯世宝在玉米大喇叭口期应用效果 ,探索出该产品的最佳使用量。试验结果表明 :不同用量的烯世宝在玉米大喇叭口期应用 ,对玉米的植株性状和产量均有影响 ;株高降低 13 81～ 34 0 3cm ,主要降低倒1,2 ,3,4 ,5节 ;茎粗的增加是增加穗位节以下的各节的茎粗 ;棒 3叶叶面积增加 31 96～ 15 6 2cm ;千粒重增加2 9 6 2g ;最佳使用量为 2 5ml/6 6 7m The experiment mainly studied the application effects of Ethiopium in different dosage on the maize trumpet mouth stage and explored the best dosage of the product. The results showed that different application rates of Ethiopium had a significant effect on plant traits and yield of maize during the trumpet stage of maize. The plant height was reduced from 13 81 to 34 0 3 cm with the main reduction being 1, 2, 3, 4, 5; the stem diameter increased by increasing the stem diameter of each node below the ear node; the leaf area of ​​stick 3 increased by 31 96 ~ 15 6 2cm; the grain weight increased by 2 9 6 2g; the optimum dosage was 25ml / 6 6 7m