Question

How is NPK fertilizer prepared ?​

Answer 1

Explanation:

In a process for the preparation of granules of NPK fertilizer comprising adding a solid potassium salt to a liquid melt or aqueous solution containing ammonium nitrate and ammonium phosphate and granulating the resulting mixture, the improvement comprising adding said potassium salt to said liquid melt or aqueous

Answer 2

In a process for the preparation of granules of NPK fertilizer comprising adding solid potassium salt to a liquid melt or aqueous solution containing ammonium nitrate and thereafter adding ammonium phosphate, and granulating the resulting mixture, the improvement comprising adding said potassium salt to said liquid.

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