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温棚蔬菜生产效益高,近年国内发展十分迅速,已成为许多地区的支柱产业。众所周知,CO2是植物进行光合作用不可缺少的原料。据测定,上午9时温棚内CO2的浓度约为80mg/kg,远远低于蔬菜快速生长要求的较佳浓度(800~1500mg/kg),因此,对温棚增施
Greenhouse vegetable production efficiency is high, in recent years the rapid development of domestic, has become a pillar industry in many areas. As we all know, CO2 is an indispensable raw material for photosynthesis of plants. It was determined that at 9 o’clock in the greenhouse CO2 concentration of about 80mg / kg, far below the rapid growth of vegetables, the preferred concentration (800 ~ 1500mg / kg), so the greenhouse