论文部分内容阅读
25 %异丙隆WP对麦田牛繁缕、看麦娘、罔艹 草的防效均在 85 %以上 ,而 6 .9%骠马胶悬剂对牛繁缕的防效仅为 2 0 .6 6 % ,85 %甲磺隆钠盐对 罔艹 草的防效为 2 6 .39%。施用异丙隆 90 0ga .i./hm2 时 ,2 5 %异丙隆WP对麦田杂草的综合防效为 85 .2 9% ;5 0 %异丙隆WP和 75 %异丙隆WP对麦田杂草的综合防效分别为 92 .1%和 95 .8% ,在相同剂量下 ,药效差异不显著 ,但显著高于 2 5 %异丙隆WP的药效 ;采用扇型喷头与细孔喷头喷施异丙隆防除麦田杂草的效果一致 ,而扇型比细孔喷头可节时 7 33～ 11 73h/hm
25% isoproturon WP on the wheat field calf, see Maiang, indiscriminate grass control effect are above 85%, while the 6 .9% gelatin suspension on the chickweed control effect is only 20%. The control efficacy of 6 6%, 85% metsulfuron-methyl sodium on F. graminearum was 26.39%. The combined control efficacy of 25% isoproturon WP against weed in wheat field was 85.29% when applying isoproturon (90.0 g · i · / hm2); 50% WP and 75% WP The comprehensive control effect of weeds in wheat field was 92.1% and 95.8% respectively, but the difference was not significant at the same dose but significantly higher than that of 25% Isoproturon WP. The application of isoproturon against fine weeds in wheat field was consistent with that of the fine-hole spray nozzles, while the fan-shaped than the nozzle of fine holes could be 733 ~ 1173h / hm