NPK 10-20-10: This variety contains 10% nitrogen, 20% phosphorus, and 10% potassium. It is commonly used as a starter fertilizer for young plants and during flowering and fruiting stages of various crops like vegetables, fruits, and flowers.

NPK 20-20-20: This balanced NPK fertilizer has equal parts of nitrogen, phosphorus, and potassium, each at 20%. It is a versatile fertilizer suitable for a wide range of crops, including vegetables, grains, fruits, and ornamental plants.

NPK 15-15-15: With an equal balance of 15% nitrogen, 15% phosphorus, and 15% potassium, this fertilizer is used for general-purpose applications and as a maintenance fertilizer for established plants.

NPK 12-24-12: This variety has 12% nitrogen, 24% phosphorus, and 12% potassium. It is often used for promoting root development and flowering in various plants, including vegetables and flowering ornamentals.

NPK 10-30-10: With 10% nitrogen, 30% phosphorus, and 10% potassium, this fertilizer is favored for promoting strong root systems and enhancing flowering and fruiting stages in plants.

NPK 5-10-10: This formulation contains 5% nitrogen, 10% phosphorus, and 10% potassium. It is commonly used for enhancing fruiting and root development in orchard crops and woody plants.

NPK 6-12-12: With 6% nitrogen, 12% phosphorus, and 12% potassium, this fertilizer is suitable for promoting root growth and early stages of plant development.

NPK 20-10-10: This variety has 20% nitrogen, 10% phosphorus, and 10% potassium. It is often used for promoting vegetative growth in turfgrass, lawns, and leafy vegetables.

The choice of NPK variety depends on factors such as the type of crop, its growth stage, soil nutrient levels, and specific crop requirements. Farmers and gardeners must conduct soil tests and consult with agricultural experts to determine the appropriate NPK formulation to meet the nutritional needs of their crops and ensure optimal growth and productivity.