35％丁苄可湿性粉剂防除水稻秧田和直播田杂草  

Studies on Weed Control in Rice Seedling Bed and Direct Seeding Rice by Dingbian 35% WP

作　　者：朱永林 

机构地区：[1]浙江省桐庐县植保站

出　　处：《农药》1996年第8期44-46,共3页Agrochemicals

摘　　要：３５％丁苄可湿性粉剂１９９４～１９９５年防除水稻秧田和直播田杂草的试验。结果表明：秧田在播种后１０天使用丁苄（商品量）１．５、１．８、２．２５千克／公顷，对稗草的防效为８９．７～９３．７％，总杂草防效９６．８～９９．２％。直播稻田在播种后５天使用丁苄１．８、２．２５千克／公颂，对稗草的防效９２．９～９４．１％，总杂草防效９７．８～９９．０％。丁苄对水稻安全。与１０％苄嘧黄隆可湿性粉剂和５０％丁草胺乳油相比，可扩大杀草谱。he experiments of Dingbian(mixture of butachlor and bensulfuron) 35% WP used in seed control of seedling bed and direct seeding rice were conducted during 1994～1995. The results showed excellent darnyard grass(Echinochloa crusgalli L.) control of 89.7 ～93. 7% and synthetic weed control of 96.8～99.2% in rice seedling bed applied at 10 days after seeding with Dingbian at 1.5,1.8 and 2.25kg/ha respectively.Treatments in direct seeding rice were obtained 92.9～94.1% barnyard grass control and 97.8～99.0% synthetic weed control while Dingbian was applied at 5 days after seeding at 1.8 and 2.25kg/ha. Dingbian treatment shows outstanding activity against a broad spectrum of annual and perennial paddy weeds comparing with bensulfuron 10% WP and butachlor 50% EC applied alone.

关 键 词：丁苄 可湿性粉剂 水稻 杂草 除草剂 

分 类 号：S482.49[农业科学—农药学] S451.2[农业科学—植物保护]