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在塑料大棚黄瓜栽培中,由于管理不当,化瓜现象十分严重,有时高达50％,直接影响着黄瓜的产量和产值。笔者认为造成黄瓜化瓜与以下因素有关: 1.高温:白天温度高于32℃,夜间高于18℃,光合作用受阻,呼吸消耗骤增,造成营养不良而化瓜。同时高温造成雌花不能正常发育,出现畸形瓜。在栽培上应加强放风管理,白天在棚温
Cucumber cultivation in plastic greenhouses, due to improper management, melon phenomenon is very serious, and sometimes up to 50%, a direct impact on cucumber production and output. I believe that the cucumber melon with the following factors: 1. High temperature: the daytime temperature above 32 ℃, night above 18 ℃, photosynthesis blocked, respiratory consumption surge, resulting in malnutrition and melon. At the same time caused by high temperature can not be normal female flower development, there deformity melon. Cultivation should be strengthened in the ventilation management, during the day in shed temperature