Table 2.
Field experiment adjusted averages of maize productivity and P concentration (g kg−1) and total P accumulated in the grains (kg ha−1) inoculated with two strains of B. pumilus (B32) and B. subtilis (B70)
| Treatment* | Maize plant | Maize grain | ||||||
|---|---|---|---|---|---|---|---|---|
| Dry biomass (kg ha−1) | P (g kg−1) | P accumulated (kg ha−1) | Productivity (kg ha−1) | Y1a (%) | Y2 (%) | Y3 (%) | Y4 (%) | |
| zero P control | 6027c | 2.42a* | 12.53b* | 5165.7b** | 85 | 100 | 86 | 94 |
| TS control | 10322a | 2.23a | 13.41b | 6053.8b | 100 | 117 | 101 | 110 |
| RP control | 7116c | 2.23a | 13.39b | 5996.4b | 99 | 116 | 100 | 109 |
| B32 + RP | 6164c | 2.19a | 11.45b | 5212.9b | 86 | 100 | 87 | 94 |
| B70 + RP | 7680b | 2.47a | 15.95a | 6532.0a | 108 | 126 | 109 | 118 |
| RPTS control | 5756c | 2.17a | 11.98b | 5517.9b | 91 | 106 | 92 | 100 |
| B32 + RPTS | 6285c | 2.36a | 15.19a | 6468.9a | 107 | 125 | 108 | 117 |
| B70 + RPTS | 6581c | 2.33a | 16.50a | 7085.9a | 117 | 137 | 118 | 128 |
aY1 = relative grain yield to TS control; Y2 = relative grain yield to zero P control; Y3 = relative grain yield to RP control; Y4 = relative grain yield to RPTS control. RP rock phosphate, TS triple superphosphate; RPTS RP + TS
*Means in each column followed by the same letter are not significantly different by Scott-Knott’s test (p ≤ 0.05), except productivity (**p ≤ 0.1)