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 are your label rates for containerized pots?


At Honeywell we sell fertilizer in bulk (to distributors and alike), so we do not have a label. Nevertheless, taking into account that ammonium sulfate is 21% nitrogen (N) and 24% sulfur (S) and depending on the amount of soil per pot and nutrient needs, you may calculate ammonium sulfate rates based on N (if you want to cover all of N needs with ammonium sulfate) or based on S (if you want the ammonium sulfate to cover S needs and only a portion of N needs).

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