每年１１月初开始，吐鲁番地区气温下降很快，为保证温室内高于１５℃气温，温室不能进行正常的通风换气。而砂类基质又不能提供和补充二氧化碳，秋延晚菜类因二氧化碳饥饿减产十分普遍。据观察，西葫芦的二氧化碳补偿点远高于黄瓜和西红柿等蔬菜。为了改善现状，我们进行了西 Beginning of November each year, Turpan temperature dropped quickly, to ensure that the greenhouse temperature above 15 ℃, the greenhouse can not be normal ventilation. The sand matrix can not provide and add carbon dioxide, late autumn vegetables due to starvation of carbon dioxide is very common. It is observed that the compensation for zucchini carbon dioxide far higher than cucumber and tomatoes and other vegetables. In order to improve the status quo, we conducted the West