Question

Potassium nitrate fertilizer contains .......... of nitrogen.

• A. 46%
• B. 44%
• C. 21%
• D. 13%

Answer 1

Answer: (D)

13%

Potassium nitrate is one of the common fertilizer which is used for the growth of the plants. Potassium nitrate contains about 13% of nitrogen. There is about 44% of potassium in oxide form. The addition of this fertilizer generally results in an increase in the pH. This fertilizer readily supplies nitrogen to the soil which can be taken up by the plants.

Thus, the correct answer is option D.