Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?
Correct answer: B. Urea
- A. Calcium nitrate
- B. Urea
- C. Calcium ammonium nitrate (CAN)
- D. Ammonium sulphate
Explanation
Urea contains about 46% nitrogen, higher than calcium nitrate, CAN, or ammonium sulphate. Its high nitrogen content is one reason it is the most concentrated widely used solid nitrogen fertiliser.
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