Vol. 9, Special Issue 12, Part Q (2025)

The experiment was conducted during Kharif - 2022 and Kharif - 2023 to study the nutrient uptake by rice influenced by nitrogen fertilization and soil amendments in lateritic soil. The experiment was laid out in factorial randomized block design with two factors. The first factor comprised of 100 kg N ha^-1 through Urea, 100 kg N ha^-1 through Ammonium Sulphate, 100 kg N ha^-1 through Calcium Nitrate, 100 kg N ha^-1 through 16:16:16 (50% Ammonical and 50% Nitrate N), 100 kg N ha^-1 through Vermicompost and RDN through Konkan Annapurna Briquettes along with control. However, second factor consisting Orthosilicic Acid 0.08% @ 15 kg ha^-1, Rice Husk Biochar @ 5 t ha^-1 and Neem Cake @ 1 t ha^-1 along with control. The experimental results indicate that, the nitrogen uptake by rice, significantly increased by application of RDN Konkan Annapurna Briquettes along with orthosilicic acid 0.08% @ 15 kg ha^-1. The phosphorous and potassium uptake by rice significantly improved by 100 kg nitrogen through 16:16:16 granular fertilizer along with orthosilicic acid 0.08% @ 15 kg ha^-1. The silicon and sulphur uptake by rice enhanced significantly by application of 100 kg N through urea along with orthosilicic acid 0.08% @ 15 kg ha^-1.