- To raise your soils pH apply a lime such as Dolomitic Lime or NutraLime.- To lower your soils pH apply a sulfur additive such as Garden Sulfur or Aluminum Sulfate.
The pH scale runs from 0 to 14 with 0 begin very acidic and 14 begin very alkaline. The optimum or “neutral” pH range is between 6.5 and 7.0.
A key thing to remember is that the pH scale is logarithmic scale where a soil with a pH of 5 is 10 times more acidic than one with a pH of 6 and a 100 times more acidic than one with a pH of 7.
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