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霜霉病是对当前大棚黄瓜生产威胁很大的一种病害。在栽培防病和药剂防治不能控制其发展的情况下,生产上常用高温闷棚的方法来抑制病害的蔓延,收效较好。为了查明高温闷棚的小气候状况对黄瓜生长和病害的影响,以及闷棚的操作技术,我们作了闷棚试验,现将初步结果汇总如下。一、高温闷棚的作用高温闷棚的作法是在晴天将大棚密闭,使棚温升高至45—46℃,保持1.5—2小时,然后通风降温,恢复常态。持续高温的作用是: (一)抑制霜霉病发展蔓延。在45—46℃的高温
Downy mildew is a serious threat to the current production of greenhouse cucumber disease. In the cultivation of disease prevention and control can not control the development of its case, the production of high temperature boredom method to suppress the spread of disease, better effect. In order to ascertain the impact of microclimate conditions at high temperature on cucumber growth and disease, as well as the unpleasant operation techniques, we made a drowsy test, the preliminary results are summarized below. First, the role of high temperature bored shed High temperature bored shed practice is to shed a sunny day, so shed temperature raised to 45-46 ℃, to maintain 1.5-2 hours, and then ventilated and cooled down to restore normalcy. The role of sustained high temperature: (A) the suppression of the spread of downy mildew. At 45-46 ℃ high temperature