Understanding Subalkaline Soils: Properties, Plants, and Care

Subalkaline refers to a type of soil that has a pH slightly above 7, but not as alkaline as soils with a pH above 8. Soils with a pH between 7.1 and 8.4 are considered subalkaline.

In general, subalkaline soils have a higher concentration of calcium and magnesium ions than alkaline soils, and may also contain smaller amounts of other nutrients like potassium and sodium. These soils can support a wide range of plant growth, but may require special care to maintain optimal fertility and structure.

Subalkaline soils can be found in a variety of geological settings, including limestone and dolomite formations, and may be more common in areas with high levels of rainfall or irrigation. They are often characterized by a high content of clay minerals and a relatively low content of organic matter, which can affect their physical and chemical properties.