二氧化碳是蔬菜光合作用的重要原料之一,直接影响到蔬菜的生长发育,大气中二氧化碳浓度约为0.03%。在相对封闭的保护地条件下,因蔬菜光合作用常造成二氧化碳缺乏,致使蔬菜的正常生长受到影响。增施二氧化碳肥料,已成为提高保护地蔬菜产量、品质的重要措施之一。 Carbon dioxide is one of the important raw materials for photosynthesis of vegetables, which directly affects the growth and development of vegetables. The concentration of carbon dioxide in the atmosphere is about 0.03%. In relatively closed protected areas, photosynthesis often causes a lack of carbon dioxide, resulting in the normal growth of vegetables are affected. Increasing carbon dioxide fertilizer has become one of the important measures to improve the yield and quality of protected vegetables.