论文部分内容阅读
对40%磺草酮.莠去津悬浮剂的最佳用量、杂草的田间防治效果及其玉米的安全性进行了研究。结果表明,40%磺草酮.莠去津悬浮剂的适宜用量为1200~1500g/hm2(有效成分量),且该用量条件下30d内对禾本科杂草防效可达到95%以上,对阔叶杂草防效在80%以上。该药剂对玉米无明显药害症状,较磺草酮和莠去津单独施用增产显著。
The optimum dosage of 40% sulcotrione, atrazine suspension, field control effect of weeds and maize safety were studied. The results showed that the suitable dosage of 40% sulcotrione and atrazine suspending agent was 1200 ~ 1500g / hm2 (active ingredient), and the control effect on grass weeds was above 95% within 30d. Broad-leaved weeds control more than 80%. The medicament has no obvious phytotoxicity symptoms on maize, and has obvious yield increase compared with sulcotrione and atrazine alone.