线状匍匐茎藨草化学防除技术研究  

Study on chemical control technique of Scirpus lineolatus

作　　者：沈国辉[1] 张士新 李涛[1] 钱振官[1] 王风波 沈杰 孙永斌 

机构地区：[1]上海市农业科学院生态环境保护研究所,上海201106 [2]上海万事发实业总公司现代生态农业研究发展中心,上海202178

出　　处：《上海农业学报》2010年第4期1-3,共3页Acta Agriculturae Shanghai

基　　金：上海市农业"四新"技术推广项目(沪农科推字2005第1-2号)资助

摘　　要：为防除水直播稻田恶性杂草线状匍匐茎藨草,以不同除草剂品种和使用方法开展了田间试验。结果表明:整地后播种前使用10%吡嘧磺隆WP 300g/hm^2土壤处理、水稻1叶1心期使用10%吡嘧磺隆WP 300g/hm^2或30%苄嘧磺隆WP 225 g/hm^2或30%莎稗磷EC 4 500 mL/hm^2二次用药技术,可有效控制线状匍匐茎藨草的危害,药后28 d株数防效达97.57%以上,药后148 d,鲜重防效仍高达84.02%以上,且对水稻生长安全,具有明显的增产作用。In order to control Scirpus lineolatus plants in direct-seed rice fields,field experiments were carried out by using different herbicides and application methods.The results showed that firstly treating the soil with 10%pyrazosulfuron-ethyl WP at 300 g/hm^2 before seeding and secondly applying 10%pyrazosulfuron-ethyl WP at 300 g/hm^2（or 30%bensulfuron-methyl WP at 225 g/hm^2 or 30% anilofos EC at 4 500 mL/hm^2）at 1.5-leaf stage of rice could efficiently control the damage caused by S.lineolatus plants,and the control efficiency could reach over 97.57%（by plants） at 28 days after application and still above 84.02%（by fresh weight of plants）at 148 days after application.The above herbicides proved to be safe for rice growth and to have an obvious effect on increasing rice yield.

关 键 词：水直播稻田 线状匍匐茎藨草 化学防除 杂草防除 

分 类 号：S452.1[农业科学—植物保护]