Table 3 Effect of Tephrosia biomass mulching on soil oxidizable and total organic carbon fractions of guava orchard (mean ± standard error).
Treatments | Oxidizable organic carbon (Mg ha−1) (Csoc) | Total organic carbon (Mg ha−1) (Ctoc) | ||||
|---|---|---|---|---|---|---|
0–15 cm | 15–30 cm | Total | 0–15 cm | 15–30 cm | Total | |
T1 (3.0 kg dry biomass m−2) | 16.58 ± 0.25a | 14.26 ± 0.26a | 30.85 ± 0.47a | 21.73 ± 0.51a | 18.51 ± 0.43a | 40.25 ± 0.48a |
T2 (2.0 kg dry biomass m−2) | 15.68 ± 0.26a | 13.68 ± 0.43ab | 29.37 ± 0.61ab | 19.94 ± 0.19b | 16.98 ± 0.37b | 36.92 ± 0.47b |
T3 (1.0 kg dry biomass m−2) | 15.49 ± 0.39b | 12.85 ± 0.31b | 28.35 ± 0.68b | 19.23 ± 0.36bc | 16.24 ± 0.41b | 35.47 ± 0.49b |
T4 (No mulching) | 13.61 ± 0.42c | 10.53 ± 0.21c | 24.14 ± 0.43c | 17.91 ± 0.45c | 12.32 ± 0.32c | 30.23 ± 0.49c |