Multiple choice

Which one of the following fertilizers has more nitrogen content?

  1. Urea

  2. Ammonium Nitrate

  3. Potassium Nitrate

  4. Ammonium Phosphates
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A Correct answer
Explanation

Urea (CO(NH2)2) has the highest nitrogen content among common fertilizers. It contains 46% nitrogen by weight. Ammonium nitrate has ~34%, ammonium phosphates ~18-21%, and potassium nitrate ~13% nitrogen.

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