摘要
[目的]缓和稻田杂草群落恶性演替、使稻田杂草防除规范化,高效防治稻田难治杂草。明确50%嘧苯胺磺隆水分散粒剂、5%嘧啶肟草醚乳油对水田恶性杂草防治效果及其安全性。[方法]试验在水稻插秧前、插秧后分期施药,采用毒土法、茎叶喷雾施药,进行田间药效试验。[结果]50%丙草胺乳油+50%嘧苯胺磺隆水分散粒剂混用,总草防效达97.6%;水稻插秧前施用50%丙草胺乳油,封闭除草,插秧后施用5%嘧啶肟草醚乳油,总草防效达95.7%。[结论]50%嘧苯胺磺隆水分散粒剂、5%嘧啶肟草醚乳油在推荐使用剂量内对水稻安全,可有效控制水田恶性杂草。
[Aims] The aim of this study is to reduce malignant succession of weed community in paddy field, standard weed control system, for the effective prevention and control of paddy refractory weeds, to determine the control efficacy of orthosulfamuron 50% WG and pyribenzoxim 5% EC on malignant weed in rice field and safety. [Methods] This experiment was carded out by the herbicide sprayed regularly before planting and after planting, by means of poisoned soil and leaf spray to field efficacy trials. [Results] The mixture ofpretilachlor 50% EC and orthosulfamuron 50% WG ethyl aniline was applied, and its control effect reached 97.6%; pretilachlor 50% EC was applied to prevent early weed before planting, pyribenzoxim 5% EC was applied after planting, and its control effect reached 95.7%. [Conclusions] Orthosulfamuron 50% WG and pyribenzoxim 5% EC can prevent paddy refractory weeds, and it is safe on rice at recommended dosages.
出处
《农药》
CAS
CSCD
北大核心
2016年第9期692-695,702,共5页
Agrochemicals
关键词
水稻
杂草
防除技术
黑龙江省
rice
weed
control technology
Heilongiiang Province
