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.

My scotch bonnet peppers are pale green with minimal fruit. Can ammonium sulfate help?


A light green color and low pepper fructification may be due to a variety of reasons, including:

  • Temperatures that are either too high or too low
  • Drought or excessive water
  • Population density that is too high
  • Lack of light
  • Viral infection
  • Too much nitrogen

Vegetables are often grown in sandy soils, which are typically low in nitrogen and sulfur. For this reason, ammonium sulfate is often included in the base fertilization. Applying nitrogen as urea without paying attention to sulfur may exacerbate deficiency symptoms. A tissue analysis would allow you to confirm whether or not you are dealing with nutritional imbalances.

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