[Campbell Biology P.854] According to the text and Figure 37.1, what is the primary reason N... | Practice Question

According to the text and Figure 37.1, what is the primary reason Nitrogen N , Phosphorus P , and Potassium K are major ingredients in chemical fertilizers?

  • A: They are the only minerals plants need.
  • B: They enhance plant resistance to pests.
  • C: They are commonly depleted from soils and limit crop productivity.
  • D: They are only available as chemical compounds.

Explanation

Figure 37.1's caption states that N, P, and K are "commonly depleted from soils to such an extent as to limit crop productivity. That is why they are the major ingredients of most chemical fertilizers."