(the power of Hydrogen) A measure of acidity and alkalinity. Below 6.5pH is acid and above 7.3pH is alkaline.
Soil pH is important because it influences several soil factors affecting plant growth, such as (1) soil bacteria, (2) nutrient leaching, (3) nutrient availability, (4) toxic elements, and (5) soil structure.
The associated web link explains in more detail and includes a table of pH values for a range of trees.
|