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黄瓜要丰产,很大程度上取决于雌花数的多少,而其花的性别又受控于温度、光照、湿度、营养和二氧化碳浓度等环境条件影响,栽培者只要科学适当的调控环境条件,就可明显增加黄瓜雌花数量并提高产量90%。一、适时施放二氧化碳可促雌花形成温室黄瓜成株根系每亩每昼夜可释放出约4千克二氧化碳,10厘米表土层中的微生物每天也可释放出9毫克二氧化碳,每天的大多数时段可基本满足光合作用对二氧化碳的需求,但是由于塑料薄膜的阻隔,温室内外
To cucumber to high yield, largely depends on the number of female flowers, and its flower is controlled by the temperature, light, humidity, nutrition and carbon dioxide concentration and other environmental conditions, as long as the cultivation of scientific and appropriate environmental regulation of the environment Can significantly increase the number of female flowers and increase the yield of cucumber 90%. First, the timely release of carbon dioxide can promote the formation of female flowers greenhouse cucumber plant roots per acre per day and night can release about 4 kg of carbon dioxide, 10 cm topsoil microbes can release 9 mg of carbon dioxide per day most of the time can be basically satisfied Photosynthesis of carbon dioxide demand, but due to the plastic film barrier, both inside and outside the greenhouse