苯噻酰草胺·乙氧磺隆防除水稻直播田杂草的效果及对光照和养分的影响  

Effect of mefenacet·ethoxysulfuron on weed control,nutrient,light intensity and rice yield in paddy field

作　　者：夏贤格 朱文达[1] 李林[1] 

机构地区：[1]湖北省农业科学院,湖北武汉430064

出　　处：《山西农业大学学报（自然科学版）》2016年第4期229-234,共6页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：国家"十一五"科技支撑项目(2006BAD08A09)

摘　　要：采用田间试验研究了70%苯噻酰草胺·乙氧磺隆水分散粒剂防除水稻直播田主要杂草的效果,及杂草防除后对田间光照和氮、磷、钾和水份的影响。试验结果表明,施用70%苯噻酰草胺·乙氧磺隆水分散粒剂防除直播稻田杂草效果显著,对稗草、鸭舌草、旱莲草、异型莎草等单双子叶杂草均有良好防效,总草防效可达85.9%~100%,显著优于两种对照药剂。杂草防除后,显著降低了田间氮、磷、钾和水份的消耗,有效改善了田间的光照和水肥条件。70%苯噻酰草胺·乙氧磺隆水分散粒剂处理的直播稻田产量达到5 080.24~5 253.49kg·hm-2,增产效果显著,产量较空白对照增加72.7%~78.6%,每公顷增收5 560.91~6 011.36元。The effect of 70% mefenacet·ethoxysulfuron WDG on weed control in paddy field was studied.The rice yield,light intensity,the content of N-P-K and water were also analyzed after weed control by mefenacet·ethoxysulfuron.The results indicated that the efficacy of weed control were remarkable by 70% mefenacet·ethoxysulfuron WDG in paddy field.The control efficacy on Echinochloa crusgalli,Cyperus difformis,Monochoria vaginalis and Eclipta prostrate was ranged from 85.9to 100%.The light intensity,water and fertilizer were greatly improved after weed control.The rice yield was ranged 5 080.24 to 5 253.49kg·hm-2 after treated with mefenacet·ethoxysulfuron,which increased by 72.7% ~78.6% compared to untreated control.Moreover,the yield income increased by 5 560.91~6 011.36Yuan·hm-2.

关 键 词：苯噻酰草胺·乙氧磺隆 杂草防效 光照 养分 水稻产量 

分 类 号：S482.49[农业科学—农药学]