Table 10.
Maize and wheat grain leaf potassium (%) at maturity 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 | - | 2.77 | 3.09 | 3.42 | 3.68 | 3.24 b |
| Foliar P | - | 3.02 | 3.52 | 3.80 | 3.98 | 3.58 a |
| - | BC | 2.80 | 3.26 | 3.56 | 3.81 | 3.36 b |
| - | BD | 2.99 | 3.34 | 3.67 | 3.85 | 3.46 a |
| Year I | - | 2.71 | 3.22 | 3.47 | 3.69 | 3.27 |
| Year II | - | 3.07 | 3.38 | 3.76 | 3.96 | 3.54 |
| Mean | 2.89 d | 3.30 c | 3.61 b | 3.83 a | 13.64 | |
| Wheat | ||||||
| No Foliar spray | - | 2.7 | 3.2 | 3.4 | 3.5 | 3.2 b |
| Foliar P | - | 3.2 | 3.5 | 3.8 | 3.9 | 3.6 a |
| - | BC | 2.9 | 3.3 | 3.5 | 3.7 | 3.3 b |
| - | BD | 3.1 | 3.4 | 3.7 | 3.8 | 3.5 a |
| Year I | - | 2.9 | 3.3 | 3.5 | 3.7 | 3.4 |
| Year II | - | 3.1 | 3.4 | 3.6 | 3.8 | 3.5 |
| Mean | 3.0 d | 3.4 c | 3.6 b | 3.7 a | ||
BC and BD indicate broadcast application, band application, respectively. Means with different letters in each column are significantly different (p ≤ 0.05).