旱育抛栽稻田丁苄微粒剂施用适期研究  

The Timing of Butachlor-Bensulfuron-methyl Mixture Application in Casting-Planted Rice Fields

作　　者：张开龙 张庆顺 李成之 黄康年 

机构地区：[1]南京市植物检疫站,江宁县植保站,六合县植保站

出　　处：《农药》1996年第7期29-31,共3页Agrochemicals

摘　　要：本文报道了不同时期药土法施用１０％丁苄微粒剂５００克／６６７米２对肥床旱育抛栽稻田杂草的防除效果、安全性及保产作用，研究结果显示：水稻抛栽后３～５天或立苗率达３５～７０％时施用，对稗草、莎草和阔叶草的株防效、鲜重防效分别达９０％和９５％以上，对水稻生长无不良影响，保产作用显著。Using butachlor-bensulfuron-methyl mixture(Dingbian 10 MG) with incorporation at different stages for control of weeds in casting-planted rice fields, the results showed that the mortality and fresh weight inhibition ratio of grasses sedges and broad-leaved weeds were all over 90%and 95% respectively by application of the herbicide at dosage of 750 g/ha(a. i. ) 3￣5 days after casting-planting and that the application of the mixture in this stage couldn't cause any adverse effects on rice growth and led to the most significant increase in the crop yield. Above results suggested that the reasonable stage in which the mixture was applied with incorporation in this kind of paddy fields shoud be 3￣5 days after casting-planting, corresponding to up-seeding ratio at 3s ￣ 70 % .

关 键 词：丁苄微粒剂 旱育抛栽水稻 施用适期 除草 稻田 

分 类 号：S451.21[农业科学—植物保护]