【摘要】 [目的]探讨灭草松与精喹禾灵等4种药剂桶混防除甘薯田杂草的可行性。[方法]采用田间茎叶喷雾处理试验测定4种桶混组合对反枝苋等杂草的除草效果及对甘薯的安全性。[结果]4种桶混组合对反枝苋等甘薯田具有代表性的杂草有很好的防效,施药后40 d株防效为83.0%～89.7%,鲜质量防效为87.5%～93.3%;对甘薯安全性较好,甘薯收获时测产结果表明除草增产效果明显。[结论]4种药剂组合防除甘薯田有代表性杂草具有防效高、杀草谱广、对甘薯安全性好等特点。更多还原

【Abstract】 [Aims]The study was to investigate the feasibility of bentazone tank-mixed with quizalofop-P-ethyl, haloxyfop-R-methyl, fl uazifop-P-butyl and clethodim to control weeds in sweet potato fi eld. [Methods]ethods] Foliage spray trial was carried out to test the control effect and safety on sweet potato of 4 combinations. [Results] [Results] The results showed that all combinations performed high effi cacy to Amaranthus retrofl exus, Herba portulacae, Eleusine indica, Digitaria sanguinalis, Cyperus iria and some other representative weeds. After 40 days after application, the strain control effect was 83.0-89.7% with fresh weight control effect of 87.5-93.3%. The application was safe to sweet potato, besides, the yield monitor of the sweet potato showed significant effect on weeds controling and yield increasing. [Conclusions] [Conclusions] All combinations with characters of high efficacy, broad spectrum, safety and significant economic benefits should be popularized and used in field.更多还原