what is the ph range of soil
What is soil pH? All soils can be classified as acid, neutral, or alkaline. The degree of acidity or alkalinity of a soil can be described by a pH value. pH values range from 0 to 14. Any value below 7.0 is considered acid, a value of 7.0 is neutral, and a pH above 7 is alkaline. Thus, a soil with a pH of 5.8 is acidic, whereas a soil with a pH of 7.9 is alkaline.