Table 2 Mean comparison of main effect on P release (mg kg−1) and PSB population (at 56 day) in soil as influenced by P sources and PSBs inoculation at different soil lime content.
Inoculation | Olsen extractable Phosphorus (mg kg−1) | ||||||
|---|---|---|---|---|---|---|---|
Days | |||||||
0 | 7 | 14 | 28 | 56 | Net increase in Olsen P over incubation | PSB population at day 56 | |
Phosphorus release (mg kg−1) (105 CFU g−1 dry soil) | |||||||
Control | 6.84 | 7.20 | 7.78 | 8.46 | 9.04 | 2.20 | 7.65 |
PSBs | 6.84 | 7.64 | 8.52 | 10 | 11.06 | 4.22 | 8.33 |
LSD(0.05) | ns | 0.104 | 0.146 | 0.134 | 0.150 | 0.077 | 7560 |
Phosphorous sources | |||||||
SSP | 7.92a | 8.06a | 8.20b | 8.36c | 8.42c | 0.50d | 6.73d |
Rock Phosphate | 6.32c | 6.80d | 7.16c | 7.62d | 8.02d | 1.70c | 7.39c |
FYM | 6.60b | 7.32c | 8.58a | 10.38b | 11.58b | 4.98b | 8.79b |
PM | 6.52b | 7.54b | 8.66a | 10.58a | 12.22a | 5.70a | 9.03a |
LSD(0.05) | 0.114 | 0.148 | 0.206 | 0.188 | 0.212 | 0.109 | 10692 |
Lime (%) | |||||||
4.78 | 7.16a | 7.94a | 8.90a | 10.08a | 10.98a | 3.82a | 8.77a |
10 | 6.94b | 7.80a | 8.70b | 8.78b | 10.70b | 3.76a | 8.48b |
15 | 6.82b | 7.50b | 8.32c | 9.44c | 10.28c | 3.46c | 8.16c |
20 | 6.40c | 6.48c | 6.66d | 7.77d | 8.32d | 1.92d | 6.55d |
LSD(0.05) | 0.114 | 0.148 | 0.206 | 0.188 | 0.212 | 0.109 | 10692 |
Interaction | |||||||
L x PS | *Fig. 1 | ns | ***Fig. 2 | ***Fig. 3 | ***Fig. 4 | ns | ***Fig. 11 |
L x I | ns | **Fig. 5 | ***Fig. 6 | ***Fig. 7 | ***Fig. 8 | ns | ns |
I x PS | ns | ns | ns | ***Fig. 9 | ***Fig. 10 | ns | ***Fig. 12 |
L x I x PS | ns | ns | ns | ns | ns | ns | ns |
CV | 2.88 | 3.48 | 4.41 | 3.54 | 3.66 | 11.79 | 2.32 |