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.

What is the difference between using elemental sulfur and sulfate-based fertilizers on crops?


For best results, sulfur applications should be made in the sulfate form, as it is the only form immediately available to crop roots. Crops cannot take up elemental sulfur until it converts into sulfate, which doesn’t start to happen until the soil temperature approaches 60°F.

Until then, sulfur-converting bacteria lie dormant, and elemental sulfur remains unavailable to crops.

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