Integrated Fertilizer Prescription Equations for Recommendations of Fertilizers in Jute–Rice–Garden Pea Sequence on Alluvial Soil of Eastern India

Field experiment was conducted on alluvial soils (Typic Eutrochrept) of eastern India by adopting inductive cum targeted yield model to assess the fertility status, fertilizer requirements, and formulation with and without integrated plant nutrient supply fertilizer (IPNS) prescription equation for jute fiber, rice grain, and garden pea on soil-test and yield target bases. By using yields, initial soil-test values, uptake of nutrients, and fertilizer doses applied, the basic data [viz., nutrient requirement (NR) and contributions of nutrients from soil (Cs), fertilizers (Cf), and farmyard manure (Cfym)] were computed and used to develop fertilizer prescription equations for jute fiber, rice grain, and garden pea with and without IPNS under a jute–rice–garden pea sequence. The greatest nutrient requirement was observed in jute [2.88:0.97:5.07 kg nitrogen (N)/phosphorus (P)/potassium (K)] followed by rice (2.34:0.47:3.48 kg N/P/K) and garden pea (0.52:0.11:0.39 kg N/P/K) for the production of 100 kg yields ...