Effects of Continuous Use of Nitrogen Alone and In Combination with Phosphorus and Potassium Fertilizers on Plant Available Major and Secondary Nutrients in Soil under Wheat-Rice Intensive Crop Rotation: Impacts of Continuous Fertilizer Use on Soil Nutrient Availability and Crop Productivity. JASRAE [Internet]. 2017 Jul. 1 [cited 2025 Aug. 21];13(2):945-8. Available from: https://ignited.in/index.php/jasrae/article/view/6932