General fertilizer rate recommendation per hectare per year:  Chemical fertilizer application: Per Hill Per Hectare  Nitrogen (N) 0.30 – 0.50 k 300 to 500 kilos  Phosphorous (P) 0.025 - 0.05 k 25 to 50 kilos  Potassium (K2O) 0.35 – 0.60 k 350 to 600 kilos  Trace minerals 0.005 – 0.01 k 5 to 10 kilos  Organic fertilizer 2.00 - 5.00 k 2 to 5 tons