摘要
为进一步推广新型化学除草剂,进行了当前常规或新出的9种除草剂防除直播田各类杂草的3个阶段性试验。水稻浸种催芽播种后4d进行土壤封闭处理防除各类杂草效果突出,3个处理防除各类杂草的效果均很好;3～4叶低草龄期,广灭灵与韩乐盛混用对单子叶草、阔叶草和莎草均有较高的防效;5～6叶高草龄期,韩秋好防除千金子、稗草和莎草效果明显。
To further promote the new type of chemical herbicides,the tests in three stages was made with the nine kinds of current or new chemical herbicides to control several types of weed in directly sowing rice field.Closed treatment of soil with the highlight results was made to control weed at 4 days after rice seed-soaking and sowing.The three treatments of closed treatment of soil had very effective efficacy of weed＇s control.When weed with 3-4 leaves,clomazone and flucetosulfuron was mixed to control monocotyledon weed,broadleaves and sedge with a high control effect;when weed with 5-6 leaves,the efficacy of metamifop to control Leptochloa chinensis（L.） Nees,Echinochloa crusgalli（L.） Beauv and cyperus rotundus was remarkable.
出处
《现代农药》
CAS
2010年第2期47-50,共4页
MODERN AGROCHEMICALS
关键词
化学除草
水稻
直播
除草效果
weeds＇ chemical control
rice
directly sowing
efficacy of weed＇s control
