CO2 applies fertilizer may enhance the soluble protein content of leaf in Lanfeng and Elizabeth, But abundant leaf blade the soluble protein increases the degree to be inferior to Elizabeth is remarkable.

• CO_2施肥可以提高兰丰和伊丽莎白叶片中可溶性蛋白的含量,其中兰丰叶片中可溶性蛋白增加程度不如伊丽莎白显著。