四川省水稻机直播田杂草防控技术研究  

Weeds Control Techniques in Mechanical Direct Seeding Paddy Fields

作　　者：姜心禄[1,2] 黄明波 蒋继承 赵浩宇 李旭毅[1,2,6] 池忠志[1,2,6] 郑家国 JIANG Xinlu;HUANG Mingbo;JIANG Jicheng;ZHAO Haoyu;LI Xuyi;CHI Zhongzhi;ZHENG Jiaguo(Crop Research Institute,Sichuan Academy of Agricultural Sciences,Chengdu 610066,China;Deyang Rice Expert Yard,Guanghan,Sichuan 618300,China;Guanghan Productivity Promotion Center,Guanghan,Sichuan 618300, China;Mianzhu City Agriculture Bureau, Mianzhu,Sichuan 618200,China;Institute of Plant Protection,Sichuan Academy of Agricultural Sciences,Chengdu 610066,China;Key Laboratory of Water Saving Agriculture in Hill Areas in Southern China,Chengdu 610066,China)

机构地区：[1]四川省农业科学院作物研究所,成都610066 [2]德阳市水稻专家大院,四川广汉618300 [3]广汉市生产力促进中心,四川广汉618300 [4]四川省绵竹市农业局,四川绵竹618200 [5]四川省农业科学院植物保护研究所,成都610066 [6]南方丘区节水农业研究四川省重点实验室,成都610066

出　　处：《中国稻米》2018年第5期78-82,共5页China Rice

基　　金：四川省科技支撑计划项目(2016NZ0112;2015NZ0010;2016NZ0040);四川省财政创新能力提升工程专项(2016GYSH-008);国家重点研发计划(2016YFD0300506)

摘　　要：为解决机直播稻田杂草多、防除难的问题,在对四川省机直播主要区域稻田杂草发生情况及当地采取的杂草防除方法调查的基础上,进行了封闭除草与茎叶除草防效比较、播封同步除草剂防效比较、茎叶除草剂防效比较等试验。结果表明,四川省机直播稻田杂草防除应采取播种时封闭除草,播种后50 d进行茎叶除草,后期结合实际情况补充进行茎叶除草,即"一封、二杀、三补"的防除方法;封闭除草宜选用60%新马歇特1 500 m L/hm2+10%吡嘧磺隆300 mg/hm2对水600 L/hm2均匀喷施,株防效和鲜质量防效超过和接近90%。茎叶除草采用稻杰900 m L/hm2+千金600 mg/hm2对水600 L/hm2均匀喷施效果最优。n order to solve the problem of many weeds and difficult to prevent in direct seeding paddy fields,on the basis of investigation of weed occurrence and weed control method in direct seeding paddy fields in Sichuan province,three experiments were conducted as follows:to compare weed control effects between closure-weed control(pre-emergent herbicide control)and steam/leaf herbicide control(post-emergence herbicide control);to select pre-emergent herbicide used at seeding;to select post-emergence herbicide.The results showed that pre-emergent herbicide should be used at seeding in direct seeding paddy fields and post-emergence herbicide should be used 50 days after sowing.In later stage,combined with the actual situation to decide whether to carry on post-emergence herbicide.The pre-emergent herbicide was made of 60%Machete plus at 1 500 mL/hm2 and 10%Pyrazosulfuron-ethyl at 300 mg/hm2 mixed with 600 L/hm2 water,and the control effect was exceed 90%.On the other hand,Penoxsulam at 900 mL/hm2 and cyhalofop-butyl at 900 mL/hm2 mixed with 600 L/hm2 water were used as post-emergence herbicide,it has good control effects.

关 键 词：水稻 机直播 杂草防控技术 

分 类 号：S451.2[农业科学—植物保护] S511.053