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田间试验示范结果表明 ,5 0 %拜田净WP杀草谱较广 ,在水稻直播田使用 ,1hm2 用量 2 5 0 .5g ,对稗草株防效、鲜重防效分别达 94.9%、94.5 % ,对千金子株防效、鲜重防效分别为 76 .4%、78.3% ,对部分莎草科杂草和阔叶杂草也有较好的防除效果 ,药效期 30d以上。 5 0 %拜田净WP 2 5 0 .5g/hm2 和 10 %苄磺隆WP 2 2 5g/hm2 复配混施 ,可扩大其对阔叶杂草、莎草科杂草的杀草谱 ,提高除草效果。建议在以稗草、千金子为主的水稻直播田 ,1hm2 用 5 0 %拜田净WP 2 5 0 .5g ,拌湿润细土 2 2 5kg ,于稗草 1.5～2叶期撒施 ;田间 3类杂草密度均较大的田块 ,1hm2 可混施 10 %苄磺隆 2 2 5g ,可达到一次性除草目的
The results of field experiments showed that 50% of Weta net WP had a broad spectrum of herbicide-resistant spectrum and was used in paddy rice field. The amount of 1hm2 was 250.5g, and its control effect on barnyardgrass was 94.9% and 94.5% respectively %, The effect of anti-gold seedlings, fresh weight control effect was 76.4%, respectively, 78.3%, on some sedge weeds and broad-leaved weeds have better control effect, the efficacy of more than 30d. Fifty percent Wadian net WP 2550g / hm2 and 10% rforzosulfuron WP 2 25g / hm2 compounding and mixing, can expand its broad-leaved weeds, sedgescens weeds grass spectrum, Improve weeding effect. It is recommended that in barnyard grass, gold-based rice direct seeding field, 1hm2 with 0% Weta net WP250g, with moist fine soil 225kg, 1.5 to 2 leaves of barnyard grass sprinkling; field 3 types of weeds are large field plots, 1hm2 10% mixed with 10% metsulfuron-2 5g, can achieve the goal of a one-time weeding