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 do I know if my crops need supplemental sulfur?

Answer:

Although the correlation between soil tests for sulfur and crop response to sulfur is not very high, soil testing is often used as a starting point.  A consideration of nitrogen/sulfur ratios in soils is another common approach.  Either way, following up with a tissue test allows you to find out how much of the sulfur is actually getting into the crop.  Sampling the exact part of the plant at a precise time and using a standard method of preparation is key, so check with your local lab for guidelines.

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