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10%恶霉灵纳米乳对棉花黄萎病的防治效果

China Cotton(2016)

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Abstract
应用10%恶霉灵纳米乳对棉花黄萎病进行全程高效控制技术研究,即用1000倍液药剂和棉籽按质量比1:1进行拌种处理24~48h,药剂和种子用量均为22.5~37.5 g-hm-2(主动防治);现蕾初期用1000倍液灌根,药剂用量450 g·hm-2(被动防治);秋桃盖顶时用1000倍液叶面喷施,药剂用量900g·hm-2(补救防治).示范面积78.47 hm2,技术辐射面积666.67hm2.结果表明,应用10%恶霉灵纳米乳对棉花黄萎病进行灌根和叶面喷施处理的防效分别达96%和88%以上,优于对照药剂50%多菌灵WP 67%和53%的防效.测产结果表明,示范田、技术辐射田皮棉产量分别为1987.35kg·hm-2和1801.35kg·hm-2,比对照田增产369.15kg·hm-2和183.15kg·hm-2,增幅达22.81%和11.32%.
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