NPK
The three numbers on fertilizer labels representing the percentage by weight of Nitrogen (N), Phosphorus (P), and Potassium (K). For example, 10-10-10 contains 10% of each nutrient. These are the three primary macronutrients plants need.
The three numbers on fertilizer labels representing the percentage by weight of Nitrogen (N), Phosphorus (P), and Potassium (K). For example, 10-10-10 contains 10% of each nutrient. These are the three primary macronutrients plants need.