717863.fig.006a
(a) Hilaria mutica
717863.fig.006b
(b) Bouteloua gracilis
Figure 6: Photosynthetic rate (μmol m−2 s−1) of Bouteloua gracilis and Hilaria mutica as affected by biosolids application in soil maintained at 40% or 80% field capacity (redrawn from [11]).