摘要
介绍了应用丁草胺+农得时、除稗特+草克星、稻思达+威农、禾大壮+太阳星、神锄+莎多茯等5种复配除草剂在稻田杂草三个不同时期的安全性及防治效果。试验结果表明:丁草胺1500mL/hm2+农得时225 g/hm2、除稗特900 g/hm2+草克星150 g/hm2、稻思达90 g/hm2+威农150g/hm2对低龄杂草防效较好,总防效分别达到98.8％、99.1％和98.9％;禾大壮1 500 mL/hm2+太阳星150 g/hm2和神锄300 g/hm2+莎多茯150 g/hm2对3龄时期杂草防效较好,总防效达到96.7％和96.3％,且对水稻生长无不良影响。
The paper introduced the safety to rice and the control efficiency of five sorts of complex herbicides: butachlor and bensulfuron methyl , mefenacet and pyrazosulfuron-ethyl , top-star and methyl 2-benzoate , ordrarm and sunstar , quinclorac and cinosulfuron at three different rice weed growing stage. The results showed that the control efficiency of butachlor 1500ml/h m2 and bensulfuron 225g/h m2, mefenacet 900g/h m2 and pyrazosulfuron-ethyl 150g/h m2 , top-star 90g/h m2 and methyl 2 -benzoate 150g/h m2 was better in early stage of weed, the total control efficiency was up to 98. 8% , 99. 1 % and 98. 9% respectively . The control efficacy of ordram 1500ml/h m2 and sunstar 150g/h m2 , quinclorac 300g/h m2 and cinosulfuron 150g/h m2 was better at three-leaf stage of weed, and the total control efficiency was up to 96. 7% and 96. 3% respectively. All of those complex were harmless to rice.
出处
《黑龙江农业科学》
2002年第6期11-13,共3页
Heilongjiang Agricultural Sciences
基金
大庆市科委计划内项目鉴[2000]第021号"稻田病虫草鼠害综合防治技术开发"内容之一。
关键词
生育期
水稻田杂草
防效
复配除草剂
安全性
complex herbicide
rice seedling bed
different stage
weed control efficiency.
