论文部分内容阅读
众所周知,作物的光合作用离不开CO2。日光温室蔬菜生产,在冬季密闭的条件下,和大气中的气体交换甚少,常常因CO2气体的馈乏而导致减产。增施CO2气肥是日光温室蔬菜生产必不可少一项措施。但近年来调查发现,CO2气肥施用后,有相当一部分菜农没有获得应有的增产效果,反而植株出现一
As we all know, crop photosynthesis can not do without CO2. Solar greenhouse vegetable production, closed in winter conditions, and the atmosphere of little gas exchange, often due to the lack of CO2 gas supply and lead to reduced production. Increasing CO2 gas fertilizer is an indispensable measure for vegetable production in solar greenhouse. However, in recent years, the survey found that after the application of CO2 gas fertilizer, a considerable part of the vegetable farmers did not get the proper stimulation effect, but the plants appeared one