Soil pH or soil reaction is an indication of the acidity or alkalinity of soil and is measured in pH units. Soil pH is defined as the negative logarithm of the hydrogen ion concentration. The pH scale ...

Salts are natural components of soil, surface, and groundwater. They are ionic mineral compounds, which means they bonded by electrostatic attractions between cations (+ charge) and anions (- charge).

Agronomist, Agronomy Research Manager, Agronomy Specialist, Crop Nutrition Scientist, Microbiology Soil Scientist, Research Soil Scientist, Soil Classifier/Soil Scientist, Soil Fertility Extension ...

2005). With the exception of C, H, and O, which plants obtain from air and water, plants derive the remaining 14 elements from the soil or through fertilizers, manures, and amendments (Parikh ...