Fig. 4

(a) N content and (b) C: N ratio in signal grass pasture roots under different cropping systems, in periods 1 and 2, throughout the incubation times. Vertical bars indicate mean standard error.

(a) N content and (b) C: N ratio in signal grass pasture roots under different cropping systems, in periods 1 and 2, throughout the incubation times. Vertical bars indicate mean standard error.