What is the analysis of grade? Group of answer choices A state-regulated, guaranteed concentration of essential elements in a fertilizer product A technique used to determine fertilizer quality. Fertilizer percentages of total nitrogen, available phosphorus, soluable potash. A legal term referring to the concentration of N, P and K by volume of a fertilizer product.

Answer: A legal term referring to the concentration of Nitrogen, phosphorus and potassium.

Explanation:

Fertilizer analysis of grade is a legal term that show the amount or concentration of nitrogen, phosphorus and potassium by volume of fertilizer product. This guarantee the amount of N, PK in a fertilizer. For example if a fertilizer product label shows 12:10:15, I t show that it contain 12% of nitrogen, 10% of phosphorus and 15 % of potassium.