The effectiveness of plant nutrition with carbon dioxide
Scientists from America made an independent experiment: they took two sealed chambers. In the first, CO2 remained at 450ppm, and in the second, 1270ppm. The experiment lasted 42, during which they studied the effect of carbon dioxide on the growth of the plant waveguide (Vigna unguiculata). The results of this study, you can see in this clip.
The increase in% in plants grown under conditions of 1270ppm in the air, compared with 450ppm.
52% stem length
Stalk weight 21%
Root length 33%
Root weight 143%
Number of leaves 38%
Leaf weight 9%
Biomass 44%