Types of raw materials that provide nitrogen in potassium sulfate compound fertilizers
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In the production of potassium sulfate compound fertilizers, apart from urea and ammonium sulfate, what other nitrogen sources are used? Which one accounts for a larger proportion? My understanding is that in high-concentration potassium sulfate compound fertilizers, urea constitutes a larger proportion, while in low- and medium-concentration ones, ammonium sulfate does. Please advise. Thank you.
I agree with you; only the N in urea has such a high value, as nothing else can reach that level. In addition, the following can be considered: 1. Ammonium monophosphate in powder form can also be used to provide nitrogen; you need to take into account the amount of phosphorus required. 2 Use ammonia water + sulfuric acid directly
Liquid ammonia, phosphoric acid fertilizer (32-4-0).