五氟磺草胺·氰氟草酯混剂防除直播稻田杂草试验  

Weed Control with Penoxsulam·Cyhalofop-butyl in Direct Seeding Rice Fields and Influence of the Following Crops

作　　者：马国兰 刘都才 刘雪源 唐涛 

机构地区：[1]湖南省植物保护研究所,长沙410125

出　　处：《农药》2010年第9期692-694,共3页Agrochemicals

基　　金：国家"十一.五"科技支撑计划项目(2007BAD87B11)

摘　　要：6%五氟磺草胺·氰氟草酯OF是陶氏益农开发的直播田新型除草剂。为了明确该药剂对直播水稻田杂草的防除效果及对水稻的安全性,2007—2008年进行了田间小区试验,结果表明:该药剂对稗草、千金子、鸭舌草、节节菜、莎草等大多数水田杂草有良好的防效,且对水稻安全。其适宜的施用剂量为90.0～120.0ga.i./hm2,施药适期为水稻3～5叶,稗草3～4叶期或千金子2～3叶期。Penoxsulam. cyhalofop-butyl 6% OF is a new herbicede of Dow AgroSciences for weed control in direct seeding rice fields. Weed control effect and rice security of penoxsulam, cyhalofop-butyl 6% OF was studied with the field experiment in 2007-2008. The results showed that penoxsulam· eyhalofop-butyl had good control for most of rice field weeds such as Echinochloa crusgalli（L.） Beauv., Leptochloa chinensis（L.） Nees, Monochora vaginalis （Burm.f.） Presl ex Kunth）, Rotala indica（Willd.） koehne and Cyperus L.. The herbicide had very good safety to direct seeding rice. The rate from 90.0 to 120,0 g a.i./hawas the best suitable dosage. The suitable applying period was at 3-5 leaves stage of rice and 3-4 leaves stage ofE. crus-galli or 2-3 leaves stage ofL. chinensis（L.）.

关 键 词：6%五氟磺草胺·氰氟草酯OF 直播田杂草 杂草防除 

分 类 号：S451.21[农业科学—植物保护]