Soil test based fertilizers application for targeted yield of coriander in Saurashtra region of Gujarat

Abstract:

During the year 2022, soil test–based crop response studies were undertaken to establish fertilizer prescription equations for coriander (Coriandrum sativum L., var. GC-3) grown under an integrated plant nutrition system on medium black calcareous soils, employing Ramamoorthy’s targeted yield methodology. The crop nutrient demand to produce one quintal of coriander yield was computed as 3.92 kg nitrogen, 0.51 kg phosphorus (P₂O₅), and 2.61 kg potassium (K₂O when farmyard manure was included). The relative contribution of nutrients supplied by soil and chemical fertilizers under FYM application was estimated to be 48.24% and 61.58% for nitrogen, 10.66% and 18.32% for phosphorus, and 32.42% and 41.51% for potassium, respectively. In treatments without FYM, fertilizer contribution alone accounted for 21.93% nitrogen, 38.26% phosphorus, and 17.71% potassium uptake. The contribution of FYM to nutrient availability was assessed as 10.95% for nitrogen, 2.55% for phosphorus, and 8.28% for potassium.