View all Clemson Precision Ag Calculators

Clemson Precision Agriculture Wordmark Clemson Soil Acidification Calculator Icon

Clemson Soil Acidification Calculator

For most South Carolina soils and crops, soil acidification is not necessary. In some instances, however, lowering the soil pH is desirable. ( for more)

This tool is for lowering soil pH.
Looking for a tool to raise soil pH?
If yes, then click here



  • Only apply when temperatures are cool (<75°F)
  • Water-in immediately after application.
  • Several equivalent rate expressions are provided below, for application of either aluminum sulfate or elemental sulfur.

Aluminum sulfate required:

Elemental sulfur required:

APA Citation:
Kirk, K.R., Plumblee, M.T., and McAlhany, F. (2019). Clemson Soil Acidification Calculator. Clemson University Precision Agriculture. Retrieved from

(c) 2019-2021 Clemson University Precision Agriculture

Disclaimer: This calculator is brought to you as a free service by Clemson University Cooperative Extension. The accuracy of the calculator is not guaranteed. User assumes all risks and liabilities from its use.