What does an NPK value show?

An NPK value indicates the relative proportions of three essential nutrients in fertilizer: nitrogen (N), phosphorus (P), and potassium (K). This numerical representation helps gardeners and farmers understand the nutrient composition and suitability of a fertilizer for specific plants or soil conditions. For example, an NPK value of 10-20-10 signifies a fertilizer with 10% nitrogen, 20% phosphorus, and 10% potassium, guiding effective plant growth and health.