早稻抛秧田一次性化学除草效果试验  

EXPERIMENT ON ONCE CONTROL WEEDS IN DIRECT CASTING PLANTED EARLY RICE FIELD

作　　者：董国 王会福 黄侠敏 

机构地区：[1]浙江省台州市农科所 [2]温岭市病虫测报站

出　　处：《植保技术与推广》1997年第2期26-27,共2页Plant Protection Technology and Extension

摘　　要：本文介绍了应用３５％丁苄可湿性粉剂、５０％杀稗王加１０％苄黄隆超微可湿性粉剂与泥土混合撒施对早稻抛秧田杂草的防除效果、安全性和增产作用。试验结果表明：在水稻抛栽后５ｄ施丁苄１２０ｇ、１５０ｇ以及在抛栽后７ｄ施杀稗王３０ｇ加苄黄隆１５ｇ对早稻抛秧田的主要杂草如稗草、莎草、鸭舌草、节节菜和矮慈姑等均有显著的防效，其总体防治效果可分别达到９６．１２％、９７．１３％和９８．７３％，且对水稻生长无不良影响。This article report on Using Dingbian 35% WP (butachlor bensalfuron methyl) and Shabaiwang 50% WP (quinclorac)+Bensulfuron methyl 10% WP with incorporation at different time for control of weed in casting planted early rice fields. The field test results showed that Dingbian 35% WP at 120 g/667 m 2 and 150 g/667 m 2 applied in 5 days after casting planted Shabaiwang 50% WP at 30 g/667 m 2+Bensulfuron methyl at 15 g/667 m 2 applied in 7 days after casting planted had significant effect of controlling main weeds such as Echinochloa crusgalli、Cyperus difformis、Rotala indica、Monochria vaginalis、Sagittaria pygmaeu in direct casting planted early rice field. The control efficacy of fresh weight of all weeds reached 96.12%、97.63% ahd 98.73%,respectirely and that the application of mixture in this time could not cause any adverse effects on rice growth and led to the most significant increase in the crop field.

关 键 词：丁苄 杀稗王 苄黄隆 早稻 抛秧田 药剂除草 

分 类 号：S451.21[农业科学—植物保护]