## Best answer

Fertilizer analysis refers to afertilizer’s formulation of the three macronutrients: nitrogen (N), phosphorus (P), and potassium (K). It is commonly referenced as N-P-K. Most bags of fertilizers feature an N-P-K fertilizer analysis of 5-10-5 or 18-9-9.

## People also ask

### What is the nutrient analysis of fertilizer?

These numbers are commonly referred to as the nutrient analysis of the fertilizer. For example, a 4-4-4 fertilizer would contain 4% N, 4% P, and 4% K. Depending on your planting needs, you may need varying amounts (or none) of the above nutrients.

### What do fertilizer numbers mean?

These numbers are commonly referred to as the nutrient analysis of the fertilizer. For example, a 4-4-4 fertilizer would contain 4% N, 4% P, and 4% K. Depending on your planting needs, you may need varying amounts (or none) of the above nutrients. How to Choose Fertilizer Based on Fertilizer Numbers?

### What is guaranteed analysis on fertilizer bags?

GUARANTEED ANALYSIS. The guaranteed analysis (or fertilizer grade) is a listing of nutrients contained in the bag, by weight. The first number of the analysis lists % N, the second number represents % P2O5 (phosphate), and the third number % K2O (potash).

### How do you calculate fertilizer analysis for a blend?

If you have a blend of equal amounts of 18-46-0 and 0-0-60, then the resulting blend would have an analysis of 9-23-30. You just take the proportion of each times the analysis and add together. Since the blend is half of each fertilizer product, the new analysis is 0.5 times the analysis numbers.