稻虾共作模式对稻田杂草的控制效果及其经济效益  

Weed Control Efficacy and Economic Benefits of Rice-lobster Farming in Paddy Rice Fields

作　　者：刘全科 周普国[2] 朱文达[3] 杨峻[2] 喻永冰 刘美刚 贾平安[4] 夏良付 许凌风 李林[3] 

机构地区：[1]湖北省植物保护总站,武汉430070 [2]农业部农药检定所,北京100125 [3]湖北省农业科学院植保土肥研究所,武汉430064 [4]潜江市农业技术推广中心,湖北潜江433199 [5]仙桃市植物保护局,湖北仙桃433000 [6]湖北沙洋广华农工贸有限公司,湖北沙洋433124

出　　处：《湖北农业科学》2017年第10期1859-1862,共4页Hubei Agricultural Sciences

基　　金：国家科技支撑计划项目(2006BAD08A09;2012BAD19B02)

摘　　要：为明确稻虾共作在稻田的应用效果及经济效益,研究了不同稻虾共作模式对稻田杂草的控制作用。结果表明,稻虾共作对田间主要杂草稗(Echinochloa crusgalli)、异型莎草(Cyperus difformis)、鸭舌草(Monochoria vaginalis)、陌上菜(Lindernia procumbens)及水苋菜(Ammannia baccifera)均具有良好的控制作用,防效可达85%以上,总体效果与化学除草处理36%苄嘧磺隆·二氯喹啉酸WP270 g(a.i)/hm^2相当。实施稻虾共作的稻田净收益为68 967.3~88 813.8元/hm^2,显著优于化学除草处理,较其收益增加4.7~6.3倍。To determine the application effect and economic benefit of rice-lobster farming in paddy rice fields,field experi-ments were conducted to evaluate the weed control efficacy of rice-lobster farming,in comparison with chemical control and manual weeding. The results showed that rice-lobster farming had a good control effect on dominant weed species Echinochloa crusgalli,Cyperus difformis, Monochoria vaginalis,Lindernia procumbens and Ammannia baccifera,and all the control efficacies were higher than 85%. The overall effects of rice-lobster farming were equivalent to that of chemical weed control by 53% mefenacet＋bensulfuron-methyl WP 397.5 g （a.i）/hm2. The net income of rice-lobster farming was 68967.3~88813.8 yuan/hm2, and significantly higher than that of chemical weed control,the profits increased by 4.7~6.3 times.

关 键 词：稻虾共作 杂草 防效 经济效益 

分 类 号：S451[农业科学—植物保护]