AdvanSix’s agronomy experts are available to answer your questions about how to get the most out of your ammonium sulfate investment. Mercedes Gearhart has overseen agronomic research at AdvanSix for more than 20 years, and has a wealth of knowledge about fertilizer use efficiency and improving crop yields. Check out the questions asked below or ask your own question.

How does the salt index of ammonium sulfate compare to that of ammonium nitrate or urea?


The salt index values for the fertilizers in question are:
Ammonium sulfate = 68.3
Ammonium nitrate = 104
Urea = 74.4

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