Moderate
Which of the following fertilisers contains the least percentage of nitrogen ?
Correct answer: C. Ammonium phosphate
- A. Liquid ammonia
- B. Urea
- C. Ammonium phosphate
- D. Ammonium sulphate
Explanation
Ammonium phosphate contains less nitrogen than the other listed fertilisers: common grades contain about 11 to 18% nitrogen, compared with about 21% in ammonium sulphate, 46% in urea and 82% in liquid ammonia.
Written and checked by Zahid Hussain, MS Computer ScienceLast updated
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