四种生物制剂对马铃薯安全性及晚疫病防治效果评价

Heilongjiang Agricultural Sciences(2022)

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Abstract
为了减少马铃薯晚疫病防治中化学农药喷施剂量和次数,降低对马铃薯品质和环境的潜在威胁,本研究选择4种生物药剂在两个地区进行马铃薯晚疫病田间试验.结果表明,1000亿孢子·g-1枯草芽孢杆菌可湿性粉剂、0.3%丁子香酚可溶液剂、5%香芹酚水剂、0.5%苦参碱水剂对马铃薯安全,且对马铃薯晚疫病均有防治效果,防效为35.86%~71.41%,商品率比对照增加0.9~5.1百分点;增产幅度2.6%~7.6%;增加产值34.3~2656.5元·hm-2,增效0.1%~6.3%.
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