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.

I have some soil samples that have been sitting since the fall. If I were to send them to the lab now, would the results be much different?


The results would be similar. I should point out that the proportion of ammonium nitrogen versus nitrate nitrogen could have changed – yet this is not typically measured in standard soil test packages.

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