The NPK percentages on a package of fertilizer refer to the ________.
A) percentages of manure collected from different types of animals
B) relative percentages of organic and inorganic nutrients in the fertilizer
C) percentages of three important mineral nutrients
D) proportions of three different nitrogen sources

Question

Quizplus · Accepted Answer

The NPK percentages on a package of fertilizer refer to the percentages of three important mineral nutrients: nitrogen (N), phosphorus (P), and potassium (K).

The NPK Percentages on a Package of Fertilizer Refer to the ________