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.

Why do many herbicide labels call for ammonium sulfate adjuvant?


On the one hand, the sulfate ions in ammonium sulfate react with hard water cations, which would otherwise tie up the herbicide’s active ingredient. On the other hand, the ammonium ions react with the herbicide’s active ingredient, forming a very soluble compound that makes it easier for the herbicide to enter the leaf and be assimilated. So, ammonium sulfate can prove particularly helpful whenever hard water is used or stress conditions are prevalent.

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