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为什么有些农户种植的黄瓜会出现蔫萎或者龟缩呢?从多年多点调查的症状来看,这是一种生理性的病害。究其原因,一是持续阴雨或者雪后陡晴,导致逆温迅速蔫萎死苗;二是黄瓜进入开花结瓜期晴天高温、放风量大,叶面蒸腾快,部分发根不良的植株开始萎缩,严重失水的则整株凋枯;三是大棚覆盖的薄膜部分破损,寒风袭入造成萎
Why do some farmers planted cucumbers or shrink? From the symptoms of many years of investigation, this is a physiological disease. The reason is that one continued rainy or snow after the steep sunny, resulting in rapid inversion Ying Wen Wei dead seedlings; the second is the cucumber into the flowering and fruiting sunny high temperature, large amount of ventilation, foliar transpiration fast, part of the root causes of poor plant hair began Shrinkage, severe dehydration, the whole plant withered; Third, part of the film covered by greenhouses damaged, caused by the cold wind hit