黑龙江水直播稻田前期杂草的化学防控  

Chemical control of weeds during the early stage of water seeding rice in Heilongjiang Province

作　　者：马军韬[1,2] 李文华 张国民 王永力[1,2] 张丽艳 邓凌韦[1,2] 高洪儒 任洋[2] Ma Juntao;Li Wenhua;Zhang Guomin;WangYongli;Zhang Liyan;Deng Lingwei;Gao Hongru;Ren Yang(Institute of Biotechnology,Heilongjiang Academy of Agricultural Sciences,Harbin Heilongjiang 150028,China;Northern Japonica Rice Molecular Breeding Joint Research Center,Chinese Academy of Science,Harbin Heilongjiang 150028,China)

机构地区：[1]黑龙江省农业科学院生物技术研究所,黑龙江哈尔滨150028 [2]中国科学院北方粳稻分子育种联合研究中心,黑龙江哈尔滨150028

出　　处：《中国植保导刊》2020年第9期67-71,共5页China Plant Protection

基　　金：国家重点研发计划(2017YFD0300505)。

摘　　要：选择了12种除草剂,在黑龙江水直播稻田开展苗前、苗后封闭施药除草试验,调查并比较不同处理对水直播稻田前期杂草的防除效果。结果显示,在苗前封闭施药处理中,25%噁草酮微乳剂+25%丙炔噁草酮可湿性粉剂+10%吡嘧磺隆可湿性粉剂对杂草总体防效最高,施药21、42 d后总草株防效为71.35%、63.33%;苗后封闭施药处理中,2%双唑草腈颗粒剂+33%嗪吡嘧磺隆水分散粒剂对杂草总体防效最高,施药21、42 d后总草株防效为82.42%、88.03%。The pre-emergence weed control experiments before and after rice seedling were carried out to study the control effect of 12 herbicides on early weeds in water seeding rice fields in Heilongjiang.The main results indicated that among the pre-emergence herbicide application treatments before rice seedling,the control effect of 25%oxadiazon ME+25%oxadiargyl WP+10%pyrazosulfuron WP on weeds was the highest.After 21 and 42 days of the application,the relative control effect was 71.35%and 63.33%respectively.Among the pre-emergence herbicide application treatments after rice seedling,the control effect of 2%pyraclonil GR+33%metazosulfuron WG on weeds was the highest,the relative control effect of weeds were 82.42%and 88.03%after 21 and 42 days of the application.

关 键 词：水直播稻田 杂草 化学防控 

分 类 号：S451.21[农业科学—植物保护]