The amount or percentage of nitrogen, phosphorous and potassium in a fertilizer can be quantified by what is called the N-P-K ratio or N-P-K rating.
The N-P-K rating can indicate the proportion of each macronutrient that the fertilizer contains. The first number can represent nitrogen (N), the second number can represent phosphorus (P), and the third number can represent potassium (K).
For example, a fertilizer can have a N-P-K rating of 2-1-1, and a fertilizer with a N-P-K rating of 4-3-2 can have a higher strength of nitrogen, phosphorus and potassium than the fertilizer with a N-P-K rating of 2-1-1
Perfect for indoor plants, vegetables, and flowers. This 250 g. Bug-farm natural Organic Fertilizer 2-3-2 is a great all year inhouse and outsede fertilizer