Establishing Critical Leaf Nutrient Concentrations and Identification of Yield Limiting Nutrients for Precise Nutrient Prescriptions of Oil Palm (Elaeis guineensis Jacq) Plantations

African oil palm (Elaeis guineensis Jacq.) is a bulk feeder of nutrients. In this study, we aimed at devising strategies for efficient nutrient management in the plantations Krishna River basin located Andhra Pradesh, India by assessing soil fertility status, establishing optimal leaf concentrations and identifying yield restrictive total, 67 were surveyed from area 2020, samples collected analysed different properties, including pH, EC, SOC, available P, K, S, exchangeable Ca Mg, hot water-soluble boron (HWB) surface (from 0–20 cm depth), subsurface 20–40 depth) deep 40–60 layers. As per DRIS (Diagnosis Recommendation Integrated System) indices estimated order requirement nutrients Nitrogen (N) > B K P Mg area. Optimum ranged between 2.07–4.29%, 0.13–0.27%, 0.52–0.94%, 0.44–0.76% 44.97–102.70 mg/kg N, B, respectively. plantations, about 15, 6, 16, 9 12 percent had less than optimum concentration Boron are major limiting factors region. Leaf need to be maintained ranges as above higher productivity