南繁水稻田杂草发生与化学防治  

Weed Occurrence and Chemical Control in Paddy Fields of Hainan National Breeding and Multiplication

作　　者：刘延[1] 沈奕德[1] 王亚[1] 李晓霞[1] 黄乔乔[1] 范志伟[1] LIU Yan;SHEN Yi-de;WANG Ya;LI Xiao-xia;HUANG Qiao-qiao;FAN Zhi-wei(Institute of Environment and Plant Protection,Chinese Academy of Tropical Agricultural Sciences/Key Laboratory for Integrated Pest Management of Tropical Crops,Ministry of Agriculture and Rural Affairs/Danzhou Agricultural Environmental Science Observation Station,Ministry of Agriculture and Rural Affairs,Haikou 571101,China)

机构地区：[1]中国热带农业科学院环境与植物保护研究所/农业农村部热带作物有害生物综合治理重点实验室/农业农村部儋州农业环境科学观测实验站

出　　处：《杂草学报》2019年第1期51-55,共5页Journal of Weed Science

基　　金：公益性行业科研专项(编号:201403075);中国热带农业科学院环境与植物保护研究所基本科研业务费专项资金(编号:2016hzs1J019)

摘　　要：在我国冬季南繁育制种作物中,水稻所占面积最大,但是由于不同地域杂草群落组成的差异,继续沿用原产地的除草剂品种和技术后,除草效果并不理想甚至会造成水稻药害。为了解决此类问题,连续3年对南繁区水稻田冬季杂草发生情况进行调查,明确现用地的杂草种类与发生规律,分别按照杂草群落中禾本科、阔叶杂草和莎草科主要危害的种类指导科学合理地选择除草剂种类,避免盲目用药,从而实现减药又高效的除草目标。The rice growing area in the Hainan National Breeding and Multiplication crops is the largest in winter season. Because ofregional differences in the structure of weed populations,chemical control technologies vary in efficacy and may cause rice phytotoxicity. Thus,we investigated the occurrence of winter weeds in paddy fields of the Hainan National Breeding and Multiplication consecutively for three years. We should select herbicides in a scientific and rational manner,according to the prevalence of the main weed species belonging to Poaceae,broad leaf and Cyperaceae in weed communities,to prevent indiscriminate herbicide use while achieving proper weed control.

关 键 词：南繁水稻 杂草种群 化学防治 

分 类 号：S451.22[农业科学—植物保护]