Amount of applied K (kg/ha) | Agronomic Use Efficiency of Potassium (kg grain/kg K) | |||||
Salima | Dedza | Lilongwe | ||||
Mean | Change | Mean | Change | Mean | Change | |
10 | 109.01 | 98.77 | 13.83 | |||
20 | 79.69 | −29.32* | 73.90 | −24.87* | 14.26 | 0.42 |
30 | 51.86 | −57.15* | 52.50 | −46.27* | 9.59 | −4.24 |
CV (%) | 25.41 | 21.57 | 61.46 | |||
P (0.05) | 0.00 | 0.00 | 0.28 | |||
Critical D Value | 2.38 | 2.42 | 2.36 |