To Evolve a Basis of Formulating Fertilizer Recommendation for a given Yield Target Based on Soil Test for Brinjal Crop

A field experiment was carried out to formulate the fertilizer recommendation for brinjal crop in inceptisol of during rabi season. Mukta Kesi variety of brinjal was taken as the test crop. Fertilizer (N and P₂O₅) adjustment equations formulated by these models for specific yield target (Y) with the use of FYM are: FN = 1.30 Y -(0.55 SN + 4.86 t FYM); FP₂O₅ = 115-(13254.6–58.5Y) ^1/2 -(2.99 SP + 6.25t FYM); FN = 312-0.55SN (For economic and maximum yield); FP₂O₅ = 89-2.99 SP (For economic and maximum yield). The recommendation for maximum and economic yield was identical because the plateau defined a realistic maximum yield, reached well before the crop response became un-economic for added N and P.