营养生长长期的根对碳酸的吸收同化能力比生殖生长期更高。但对根吸收同化碳酸在水稻碳代谢中占的比重以及根对碳酸是主动吸收还是被动吸收还不清楚,本实验目的就是为了弄清这些问题。 Long-term vegetative growth of carbon acid absorption and assimilation ability than reproductive growth period is higher. However, it is unclear whether the root absorption and assimilation of carbonated carbon accounts for the share of carbon metabolism in rice and whether the root is active or passive absorption of carbonic acid. The purpose of this experiment is to clarify these problems.