what does fertilizer analysis mean

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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 a guaranteed analysis of fertilizer?

  • 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). The guaranteed analysis of the fertilizer in the above example is: 18-6-12.

  • What do the numbers mean on fertilizer label?

  • The three numbers you see on the label of every bagged or bottled fertilizer represent the product鈥檚 N-P-K ratio. The N in the ratio stands for nitrogen, the P stands for phosphorous, and the K stands for potassium.

  • What is the ratio of fertilizer?

  • The ratio of a fertilizer is an important characteristic to understand. The ratio of a fertilizer is the relationship between the N-P2O5 – and K2O content of a fertilizer. The ratio of the fertilizer in the example above is 3-1-2. A fertilizer with a 3-1-2 ratio contains one and a half times as much N as K2O and three times more N than P2O5.

  • What is the N-P-K of fertilizer analysis?

  • Most bags of fertilizers feature an N-P-K fertilizer analysis of 5-10-5 or 18-9-9. Fertilizer analysis is important to gardening because the formula required by plants differs from lawns, perennials, shrubs, trees, and flowers, as well as vegetable and fruit gardens.

    what does fertilizer analysis mean

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