300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Grass/clover mixture (75:25) of Perennial ryegrass (Lolium perenne L.) and White clover (Trifolium repens L.)
|
300 ppm
|
600 ppm
|
900 ppm
|
|
| Number of Results |
|
|
1
|
| Arithmetic Mean |
|
|
19%
|
| Standard Error |
|
|
0%
|
|
Experimental Conditions
|
300 ppm
|
600 ppm
|
900 ppm
|
|
|
Weigel and Manderscheid (2005) |
Mean results of a number of experiments conducted at the Institute of Agroecology of the Federal Agricultural Research Centre, Braunschweig, Germany, over the period 1992-2000, in experimental settings ranging from controlled environment chambers to out-of-doors open-top chambers (OTCs) to free air carbon dioxide enrichment (FACE)
|
|
|
19%
|