300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
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Bromus hordeaceus L. [Soft Brome]
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
2
|
|
|
| Arithmetic Mean |
43%
|
|
|
| Standard Error |
9.9%
|
|
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Jackson and Reynolds (1996) |
open-top chambers, roots, -NPK
|
29%
|
|
|
|
Jackson and Reynolds (1996) |
open-top chambers, roots, +NPK
|
57%
|
|
|