NPK
Nitrogen, Phosphorus, and Potassium: The top three nutrients used in fertilizers and a numbering system is standardized for these available nutrients. For example, a 18-12-14 fertilizer is 18% nitrogen, 12% phosphorus, and 14% potassium.
Nitrogen, Phosphorus, and Potassium: The top three nutrients used in fertilizers and a numbering system is standardized for these available nutrients. For example, a 18-12-14 fertilizer is 18% nitrogen, 12% phosphorus, and 14% potassium.