Soil test based
One time basal application of P
Available P 12-25 kg ha-1: Apply P at the rate of 60 kg P2O5 ha-1 (SSP @ 375 kg ha-1 or DAP@ 130 kg ha-1)
Available P < 12 kg ha-1 Apply 25 % more P2O5
Available
P > 25 kg ha-1 Apply 25 % less P2O5