摘要
试验研究了30%丁草胺.苄嘧磺隆防除水稻移栽田稗草、鸭舌草、矮慈姑等的效果,并测定了杂草对氮、磷、钾和水分的影响以及水稻产量的影响。结果表明,30%丁草胺.苄嘧磺隆对水稻移栽田的主要杂草具有良好的防治效果,有效成分用量为315～720 g/hm2的30%丁草胺.苄嘧磺隆综合密度防效和综合鲜重防效分别为88.25%～98.77%、83.59%～99.32%,显著优于对照药剂10%苄嘧磺隆WP和60%丁草胺EC。30%丁草胺.苄嘧磺隆施用后,增产效果总体优于对照,在水稻移栽田具有良好的推广前景。
Trials were conducted to evaluate the effects of wettable powder mixed with butachlor and bensulfuron-methyl on controling Echinochloa crusgalli（L.） Beauv,Monochoria vaginalis（Burm.F.） and Sagittaria pygmaea Mig,as well as the effects on crop yield and the absorption of nitrogen,phosphorus,kalium and moisture.The results showed that 30% wettable powder mixed with butachlor and bensulfuron-methyl had good control effect against the main weeds in transplanted rice fields.The overall density control effects and fresh control effects were 88.25～98.77%、83.59～99.32%,which were significantly higher than that of 10% bensulfuron-methyl WP,60% butachlor EC.The application of 30% butachlor ＋ bensulfuron-methyl significantly increased the yield of rice,and was better than those compared herbicides.It has good application prospects in transplanted rice fields.
出处
《湖北农业科学》
北大核心
2011年第18期3714-3716,共3页
Hubei Agricultural Sciences
基金
国家"十一五"科技支撑项目(2006BAD08A09)
关键词
移栽稻田
丁草胺·苄嘧磺隆
杂草防效
养分
水分
产量
transplanted rice field
butachlor ＋ bensulfuron-methyl
weed control
nutrient
moisture
yield
