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大棚蔬菜施气肥优质高产效益好二氧化碳简称气肥，是作物进行光合作用的主要原料。据测定，蔬菜进行光合作用最理想的二氧化碳浓度为１０００ｐｐｍ，而空气中的二氧化碳依度为７００ｐｐｍ，大棚相对密闭，二氧化碳浓度就更低，有试验表明。如果将大棚内二氧化碳的浓度增...
Greenhouse vegetable gas fertilizer high quality and good yield and efficiency Carbon dioxide gas fertilizer, is the main raw material for crop photosynthesis. It is determined that the optimal photosynthesis of vegetables for carbon dioxide concentration of 1000ppm, while the carbon dioxide in the air according to the degree of 700ppm, relatively confined greenhouses, lower concentrations of carbon dioxide, have shown that the test. If the concentration of carbon dioxide in the greenhouse by ...