Soil test crop response correlation studies for yield targeting of banana in Inceptisol

Soil test crop response correlation studies were conducted to formulate the yield target equations for banana cv. Grand nine under integrated plant nutrition system in inceptisol. Fertilizer adjustment equations under IPNS were formulated for banana by following Ramamoorthy's inductive – cum – targeted yield model. The nutrient requirements to produce one tonne of banana were 4.83, 0.48 and 9.02 kg ha⁻¹ N, P₂O₅ and K₂O, respectively. The per cent contributions from soil and fertilizer nutrients were found to be 64.76 and 28.47 for nitrogen, 68.32 and 16.49 for phosphorus and 59.07 and 64.55 for potassium respectively. Similarly, the per cent contribution of fertilizer nutrients in presence of FYM was 48.21, 23.0 and 120.0 for nitrogen, phosphorus and potassium respectively. The per cent contribution of FYM was 15.5 for nitrogen 11.3 for phosphorus and 19.34 for potassium respectively.