不同除草剂组配对旱地水稻杂草的防效  

Control Effects of Different Herbicide Combinations for Weed in Dryland Rice

作　　者：赵际雪 段自林 陈定昌 李有明 板自兵 文建成[1,2] 黄大军[1,2] 李娟[1,2] ZHAO Jixue;DUAN Zilin;CHEN Dingchang;LI Youming;BAN Zibing;WEN Jiancheng;HUANG Dajun;LI Juan(College of Agronomy and Biotechnology,Yunnan Agricultural University,Kunming 650201,China;Rice Research Institute,Yunnan Agricultural University,Kunming 650201,China;Yunnan Yuanfang Agricultural Science and Technology Limited Company,Kunming 650201,China;Jingdong Yuanfang Agricultural Science and Technology Limited Company,Jingdong 676200,China)

机构地区：[1]云南农业大学农学与生物技术学院,云南昆明650201 [2]云南农业大学稻作研究所,云南昆明650201 [3]云南远方农业科技有限公司,云南昆明650201 [4]景东远方农业科技有限公司,云南景东676200

出　　处：《云南农业大学学报（自然科学版）》2024年第5期10-15,共6页Journal of Yunnan Agricultural University:Natural Science

基　　金：云南省科技厅重大专项(202402AE090026,202102AE090017);昆明市院士自由探索项目(KJHZC-2022YS02)。

摘　　要：【目的】分析不同除草剂配施对旱地水稻农艺性状、产量和经济效益的影响,综合评估供试除草剂配施的杂草防控效果,以期为旱地稻田杂草的经济、高效防除提供科学依据。【方法】以滇型杂交粳稻滇禾优615为材料,进行播后苗前除草剂处理土壤和苗后除草剂处理茎叶的最佳组配筛选。【结果】不同除草剂组合对旱地水稻杂草的防效差异显著。采用播后苗前10%苄嘧磺隆可湿性粉剂(0.30 kg/hm^(2))+60%丁草胺水乳剂(1.80 L/hm^(2))处理土壤、苗后26%氰氟·氯氟吡乳油(0.53 L/hm^(2))+20%噁唑·氰氟乳油(0.90 L/hm^(2))处理茎叶的组配方案防效最佳,药后15和30 d的株数防效分别为92.00%和90.25%,30 d的鲜质量防效为95.75%;该组合对旱地水稻安全,且可节本增效。【结论】本研究筛选的药剂组配方案成本低、收益高、对杂草防除效果好,为旱地水稻种植选择高效安全的除草剂提供了依据。[Purpose]To analyze the effects of combined application of different herbicides on the agronomic traits,yield,and economic benefits of dryland rice,and comprehensively evaluate the weed control effects of the tested herbicide combinations,providing a scientific basis for economically and efficiently controlling weeds in dryland rice fields.[Methods]Using the dryland hybrid rice Dianheyou 615 as the material,the study screened for the optimal combinations of pre-emergence(for soil)and post-emergence(for stem and leaf)herbicide treatments.[Results]The control effects of dif-Journal of Yunnan Agricultural University(Natural Science)E-mail:[e-mail] ferent herbicide combinations on rice weeds in dryland were significantly different.The most effective combination was found to be a pre-emergence soil treatment with 10%bensulfuron-methyl wettable powder(0.30 kg/hm^(2))+60%butachlor emulsion in water(1.80 L/hm^(2)),followed by a postemergence stem and leaf treatment with 26%cyhalofop-butyl·fluroxypyr emulsifiable concentrates(0.53 L/hm^(2))+20%metamifop·cyhalofop-butyl emulsifiable concentrates(0.90 L/hm^(2)).Under this combination,the control effects on the number of plants were 92.00%and 90.25%at 15 and 30 days after application,respectively;and on the fresh weight were 95.75%at 30 days after application.The combination was safe to dryland rice and could save cost and increase benefit.[Conclusion]The selected herbicide combination is low-cost,high-return,and effective for weed control,providing a basis for the selection of efficient and safe herbicides for dryland rice cultivation.

关 键 词：旱地水稻 除草剂 杂草防控 安全性 

分 类 号：S511.053[农业科学—作物学]