Response of Garlic to Integrated Nutrient Management Based on Targeted Yield Concept in Inceptisol

摘要

Soil test crop response correlation studies were conducted to formulate the fertilizer adjustment equations for garlic (Var. G-41) under integrated plant nutrition system on an Inceptisol during rabi 2005 following Ramamoorthy’s inductive-cwm-targeted yield approach. The nutrient requirement for producing one quintal of garlic bulb was 1.81, 0.34 and 1.51 kg of N, P_2O_5 and K_2O,respectively. The per cent contribution from soil and fertilizer nutrients were found to be 36.0 and 76.1 for nitrogen, 70.2 and 21.2 for phosphorus and 11.1 and 152.0 for potassium, respectively. Similarly, the per cent contribution of fertilizers in presence of FYM was 105.1 for nitrogen, 38.0 for phosphorus and 182.0 for potassium. The per cent nutrient contribution ofFYM was 26.1 for nitrogen, 15.0 for phosphorus and 22.1 for potassium. As per the IPNS based fertilizer prescription equation, for obtaining 100 q ha ‘ bulb yield of garlic on an Inceptisol considering the average soil test values of 220, 16 and 350 kgha ‘ of available N, P and K, respectively the requirement of fertilizer nutrient was 110, 71 and 69 kg ha ' of N, P_2O_5 and K_2O, respectively along with 10 t FYM ha '.