NPK

The three numbers on fertilizer represents the value of the three nutrients used by plants. These nutrients are nitrogen (N), phosphorus (P) and potassium (K) or NPK for short. When you read the numbers on the bag of fertilizer you need to know, the higher the number the more concentrated the nutrient is in the fertilizer. For example, numbers on fertilizer listed as 20-5-5 has four times more nitrogen in it than phosphorus and potassium. Is it that tricky.

Nitrogen (N) – nitrogen is largely responsible for the growth of leaves on the plant.

Phosphorus (P) – Phosphorus is largely responsible for root growth and flower and fruit development.

Potassium (K) – Potassium is a nutrient that helps the overall functions of the plant perform correctly.