The following points highlight the nine main nutrients required for irrigated groundnut production and also considered as the major plant nutrients for enhancing the crop productivity. The nutrients are: 1. Nitrogen 2. Phosphorus 3. Potassium 4. Balanced Fertiliser Use 5. Calcium and Sulphur 6. 6. K: Ca: Mg Ratio 7. Zinc 8. Boron 9. Iron. […]