Phosphorus is never readily soluble in the soil but is most available in soil with a pH range centered around 6.5. Extremely and strongly acid soils (pH 4.0-5.0) can have high concentrations of ...

When soil pH is neutral to slightly high (7.5), most vegetables and ornamental plants can grow fine, although it helps to know how to lower soil pH slightly for acid-loving plants. But soil that ...

The University of Delaware Soil Testing Lab uses the Adams-Evans buffer pH test to determine lime requirement for a field based on soil test analysis of an 8-inch composite soil sample. In this quick ...