Question

Which among the following nitrogenous fertilizers has the least acidifying effect on soil upon continuous application over the years?

A Ammonium sulfate Correct Answer Incorrect Answer
B Ammonium chloride Correct Answer Incorrect Answer
C Urea Correct Answer Incorrect Answer
D Calcium ammonium nitrate Correct Answer Incorrect Answer

Solution

CAN contains calcium and nitrate nitrogen. It is neutral to slightly alkaline in its reaction and has a lesser acidifying effect compared to urea or ammonium-based fertilizers, making it suitable for long-term use in acid-prone soils.

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