杂草科学
雜草科學
잡초과학
WEED SCIENCE
2015年
2期
52-56
,共5页
苄嘧磺隆%异丙草胺%抛秧水稻%除草%安全性
芐嘧磺隆%異丙草胺%拋秧水稻%除草%安全性
변밀광륭%이병초알%포앙수도%제초%안전성
bensulfuron methyl%propisochlor%broadcast -transplanted rice%weeding%selectivity
由于水稻移栽方式的改变，华南地区抛秧稻田的杂草危害逐年加重，严重影响水稻的产量和品质。为此，采用大田药效试验的方法，研究10％苄嘧磺隆·异丙草胺可湿性粉剂对于华南地区抛秧早稻和晚稻田杂草的防除效果、最佳使用剂量及其安全性。结果表明：10％苄嘧磺隆·异丙草胺可湿性粉剂在水稻抛秧7 d 左右进行药土法施药，推荐使用剂量101．25～112．50 g a．i．／hm2，对水稻抛秧田稗草、鸭舌草、碎米莎草等常见杂草有较好的防效，具有显著的除草增产效果。
由于水稻移栽方式的改變，華南地區拋秧稻田的雜草危害逐年加重，嚴重影響水稻的產量和品質。為此，採用大田藥效試驗的方法，研究10％芐嘧磺隆·異丙草胺可濕性粉劑對于華南地區拋秧早稻和晚稻田雜草的防除效果、最佳使用劑量及其安全性。結果錶明：10％芐嘧磺隆·異丙草胺可濕性粉劑在水稻拋秧7 d 左右進行藥土法施藥，推薦使用劑量101．25～112．50 g a．i．／hm2，對水稻拋秧田稗草、鴨舌草、碎米莎草等常見雜草有較好的防效，具有顯著的除草增產效果。
유우수도이재방식적개변，화남지구포앙도전적잡초위해축년가중，엄중영향수도적산량화품질。위차，채용대전약효시험적방법，연구10％변밀광륭·이병초알가습성분제대우화남지구포앙조도화만도전잡초적방제효과、최가사용제량급기안전성。결과표명：10％변밀광륭·이병초알가습성분제재수도포앙7 d 좌우진행약토법시약，추천사용제량101．25～112．50 g a．i．／hm2，대수도포앙전패초、압설초、쇄미사초등상견잡초유교호적방효，구유현저적제초증산효과。
Changes in the broadcast -transplanted rice cultivation practices have steadily increased the negative impact of weeds in southern China seriously affecting the yield and quality of rice.Therefore,a field efficacy test was established to determine the recommended dose,selectivity to rice safety and efficacy for weeds control of bensulfuron methyl -propiso-chlor 1 0% WP in early and late season rice fields in south China.Soil application of the herbicide formulation mixture at about 7 days after rice seedlings were transplanted provided good control of the most common weeds such as Echinochloa crus -galli (L.)Beauv.,Monochoria vaginalis (Burm.f.)Presl and Cyperus iria,and significant increased grain pro-duction.The recommended dose is between 1 01 and 1 1 2 g a.i./hm2 .
