Table 5.
Maize and wheat grain yield (t ha−1) as influenced by 144 mM KH2PO4 solution at given soil-applied P levels in calcareous soils.
| Foliar P | Methods | P Levels (kg ha−1) | Mean | |||
|---|---|---|---|---|---|---|
| 0 | 20 | 40 | 60 | |||
| Maize | ||||||
| No Foliar spray | - | 3.16 | 4.24 | 4.57 | 4.71 | 4.17 b |
| Foliar P | - | 3.72 | 4.50 | 4.82 | 4.88 | 4.48 a |
| - | BC | 3.42 | 4.27 | 4.62 | 4.72 | 4.26 b |
| - | BD | 3.46 | 4.47 | 4.77 | 4.87 | 4.39 a |
| Year I | - | 3.42 | 4.38 | 4.67 | 4.75 | 4.31 NS |
| Year II | - | 3.47 | 4.36 | 4.71 | 4.84 | 4.34 |
| Mean | 3.44 d | 4.37 c | 4.69 b | 4.79 a | ||
| Wheat | ||||||
| No Foliar spray | - | 2.57 | 3.51 | 3.66 | 3.95 | 3.42 b |
| Foliar P | - | 3.21 | 3.88 | 4.11 | 4.30 | 3.88 a |
| - | BC | 2.90 | 3.55 | 3.76 | 4.04 | 3.56 b |
| - | BD | 2.88 | 3.83 | 4.01 | 4.22 | 3.73 a |
| Year I | - | 2.92 | 3.76 | 3.88 | 4.11 | 3.67 NS |
| Year II | - | 2.86 | 3.62 | 3.89 | 4.14 | 3.63 |
| Mean | 2.89 d | 3.69 c | 3.88 b | 4.13 a | ||
BC, BD and NS indicate broadcast application, band application and non-significant, respectively. Means with different letters in each column are significantly different (p ≤ 0.05).