不同时期施药对冬小麦田间杂草防除效果的影响  

Effect of Herbicide Time of Application on Weed Control in Winter Wheat

作　　者：李可懿 范美娟 翟春花 朱慧 殷茵 LI Ke-yi;FAN Mei-juan;ZHAI Chun-hua;ZHU Hui;YIN Yin(Agricultural Service Centre of Jingang Town,Zhangjiagang 215631,China;Agricultural Service Centre of Yangshe Town,Zhangjiagang 215600,China;Zhangjiagang Station of Plant Protection and Plant Quarantine,Zhangjiagang 215600,China)

机构地区：[1]江苏省张家港市金港镇农业服务中心,江苏张家港215631 [2]江苏省张家港市杨舍镇农业服务中心,江苏张家港215600 [3]江苏省张家港市植保植检站,江苏张家港215600

出　　处：《杂草学报》2020年第4期69-73,共5页Journal of Weed Science

摘　　要：麦田杂草防除效果差是长期困扰江苏张家港地区小麦种植户的问题。笔者选取5种当地市售常用除草剂,比较在不同时期(播后封闭、冬前茎叶喷雾和春季茎叶喷雾)施用的除草效果。结果表明,使用封闭除草剂对田间杂草有明显的抑制作用,仅使用茎叶喷雾除草对杂草抑制效果有限,封闭配合茎叶喷雾处理,对麦田杂草的防除效果更显著。无论是否采用封闭除草,春季使用茎叶除草剂的效果都要优于冬季。除草剂的使用能显著提高小麦产量。因此,结合当地实际,“一封一杀”即小麦播后7 d内进行封闭除草,春季再进行1次茎叶除草具有除草效果好、经济、易操作等优点,值得在当地麦田大力推广应用。The poor effect of weed control in wheat field is a long-term problem for local farmers.Five commonly used herbicides in the local market were selected to evaluate theirtime of application(pre-emergence,pre-winter and spring).The results showed that the use of pre-emergence herbicides on weeds in the wheat field had obvious inhibitory effect,the effect of the only use of stem and leaf herbicides on weed control was limited,and the control effect of closed herbicides combined with stem and leaf herbicides was more efficient on weed killing in wheat field weeds.Whether closed weeding or not,the effect of stem and leaf herbicides in spring was better than that in winter.The application of herbicides significantly increasedwheat yield.In accordance with local conditions,“one closed and one kill herbicides”which means first using closed herbicides within 7 days after sowing wheat,and then applying stem and leaf herbicides in spring,has the advantages of effective weed control,economic and easy operation,therefore it is worth popularizing and applying in local wheat fields.

关 键 词：不同施药期 麦田杂草 防效 封闭除草 茎叶喷雾处理 

分 类 号：S451.22[农业科学—植物保护]