丁噻隆防除甘蔗田杂草效果及其对后茬作物的影响  

Weed Control and Influence of the Following Crops with Tebuthiuron in Sugarcane Fields

作　　者：方越[1] 沈雪峰[1] 陈勇[1] 

机构地区：[1]华南农业大学农学院,广州510642

出　　处：《农药》2012年第12期919-921,932,共4页Agrochemicals

基　　金：公益性行业(农业)科研专项"现代农作制模式构建与配套技术研究与示范"(201103001);第三方农产品质量检测和追溯认证外包服务平台的关键技术和创新机制研究及示范项目(2010B090400508)

摘　　要：【方法】采用田间小区试验方法，测定46％丁噻隆悬浮剂对甘蔗田杂草的防除效果及其对甘蔗和后茬作物菜心、菠菜、荷兰豆的影响。【结果】46％丁噻隆悬浮剂对牛筋草、白茅等一年生禾本科杂草和鬼针草等阔叶杂草药后30d防效均在80％以上，对甘蔗和后茬作物安全。【结论】在甘蔗播后苗前，推荐使用46％丁噻隆悬浮剂850-1200ga．i．／hm2进行土壤喷雾，能够有效防除甘蔗田间杂草，持效期在30d以上。除草剂对菠菜、菜心和荷兰豆3种后茬作物生长安全。[Methods] Field plot were conducted to evaluate tebuthiuron 46% SC activity and influence on the following crops （spinach, flowering cabbage, snow bean） in South China. [Results] The results showed that the control efficacy of tebuthiuron 46% SC on grasses weeds （Eleusine indica, Imperata cylindrical） and broad leaf weed （Bidens pilosa） were more than 80% on 30th day after post-emergence treatment, and safety on sugarcane and following crops. [Conclusions] Tebuthiuron 46% SC has good control effect for most of sugarcane field weeds at recommended dosage from 850 to 1 200 g a.i./ha before seedling ,emergence or after sowing of sugarcane in South China. The effective duration is up to 30 d. It is safe to the following crops of spinach, flowering cabbage, snow bean.

关 键 词：丁噻隆 甘蔗 杂草防除 后茬作物 安全性 

分 类 号：S451.2[农业科学—植物保护]