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用 3种浓度每 6 6 6 .7m2用药 10 0 g,15 0 g,2 0 0 g,15 %多效唑 ( Multi-Effect Triazole,简称 MET)可湿性粉剂 ,分别兑水 10 0 kg,分两个时期 (播种后 2 4h和出苗后一叶前 )进行喷施处理 ,秧龄 30天左右调查苗高、苗茎宽、单株分蘖数、单株总根数、单株鲜重、单株干重时发现 ,喷施 MET可以显著降低苗高 ,增加茎粗 ,增加单株分蘖和鲜重 ,但对单株总根数和单株干重影响不显著。其中 2 0 0 g/ 6 6 6 .7m2 、兑水 10 0 kg喷施浓度效果最好。播种后 2 4h喷施 ,矮壮效果最佳 ,出苗后一叶前喷施 ,增蘖效果最佳
Multi-Effect Triazole (MET) wettable powder was dosed at 3 concentrations of 6 6 6 .7m 2 each with 10 0 g, 150 g, 200 g, 15% MET. (24 h after sowing and 1 leaf before emergence). The seedling height, seedling width, number of tillers per plant, total number of single plant, fresh weight per plant, dry weight per plant It was found that sprayed with MET can significantly reduce the seedling height, increase stem diameter, increase tiller and fresh weight per plant, but the total number of single plant and dry weight per plant did not significantly affect. Of which 200 g / 666.7m2, watered at 10 0 kg spraying the best effect. Spraying 24 h after sowing, the shortest and best results, spraying after the emergence of a leaf before tillering the best