引用本文:[点击复制]
[点击复制]
【打印本页】 【在线阅读全文】【下载PDF全文】 查看/发表评论下载PDF阅读器关闭

←前一篇|后一篇→

过刊浏览    高级检索

本文已被:浏览 128次   下载 205 本文二维码信息
码上扫一扫!
水稻直播田一年生杂草防治药剂配方筛选试验
张学成
0
((寿县农业科学研究所,安徽寿县232200))
摘要:
为了明确噁唑酰草胺、氰氟草酯和五氟磺草胺3种除草剂的联合作用类型及最佳复配比例,本文采用茎叶喷雾法测定噁唑酰草胺、氰氟草酯和五氟磺草胺混配对稗草、千金子、陌上菜和异型莎草的生物活性,并采用Cobly法评价三者混配的联合作用类型。结果表明,噁唑酰草胺、氰氟草酯和五氟磺草胺对水稻田一年生杂草的防治效果表现为加成效应,其中噁唑酰草胺18 g/hm2+氰氟草酯15 g/hm2+五氟磺草胺9 g/hm2组合防治稗草、千金子、陌上菜和异型莎草时(E-E0)/E值较其他组合稍高。由于噁唑酰草胺、氰氟草酯和五氟磺草胺3种药剂对不同防治对象的效果具有互补性,因而推荐其复配时有效成分质量比例为2∶5∶1。
关键词:  水稻直播田  一年生杂草  除草剂  配方筛选
DOI:
基金项目:
Screening of Herbicides Combination Against Annual Weeds in Direct Seeding Paddy Fields
ZHANG Xue-cheng
((Shouxian County Academy of Agricultural Sciences,Shouxian Anhui 232200))
Abstract:
Three kinds of herbicides(metamifop, cyhalofop-butyl and penoxsulam)were tested to clarify the combined action types and optimum proportion.The bioactivity of metamifop,cyhalofop-butyl and penoxsulam with Echinochloa crusgalli,Leptochloa chinensis,Lindernia procumbens and Cyperus difformis were determined by stem leaf spray method.The combined type of three mixture was evaluated by Cobly.The results showed that the control effect of metamifop,cyhalofop-butyl and penoxsulam on annual weeds in paddy field manifested as additive effect.The control effect of metamifop 18 g/hm2+cyhalofop-butyl 15 g/hm2+penoxsulam 9 g/hm2 was slightly higher than that of other combinations.The control effect of metamifop,cyhalofop-butyl and penoxsulam on annual weeds in paddy field were complementary.The proportion of effective components in the mixture was 2∶5∶1.
Key words:  direct seeding paddy field  annual weed  herbicide  formulation selection

用微信扫一扫

用微信扫一扫