FERTILIZER DOSES ON TARGETED YIELD CONCEPT

On the basis of the experiments conducted on paddy in rainfall conditions of Kangra district during the last 10 years, the following equations have been worked out for paddy in respect of N,P and K application :

F N        = 5.46 T-0.32 SN
F P2O5   = 2.50 T-2.67 SP
F K2O   = 2.82 T-0.68 SK 

Where FN, FP2 O5 and F2KO are the doses of N,P2O5 and KO2/ha, respectively. T is the yield target (q/ha) and SN, SP and SK are the soil test values in kg/ha for N,P and K, respectively.
Therefore, if the soil test value of N, P and K is available for the farmer's field, the doses of N,P and K in kg/ha can be calculated by substituting the soil test value in the equation.

Fertilizer adjustment equations for paddy and maize.

Paddy : 
FN         = 7.90 T-0.43 SN
FP2O5   = 3.22 T-3.29 SP
FK2O    = 3.14 T-0.71 SK

Maize :
FN        = 5.82 T-0.24 SN
FP2O5  = 3.91 T-2.11 SP
FK2O   = 2.58 T-0.31 SK