Question

How urea and superphosphate fertilizers are prepared?

Answer 1

The result showed that the product did not react with the urea. ... The powderurea superphosphate was granulated with KC1, TSP, SSP, MAP and ammonia to yield NPK fertilizers, such as 8-24-8 or 12-12-12. By the same method, other compounds of NPK, such as 15-15-15, could be produced.
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