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 ...

A new study reveals that soil acidity plays a critical role in determining how wheat competes with soil microorganisms for nitrogen, a nutrient ...

To be a successful gardener, one needs to have a basic understanding of the soil which you are tending, as well the factors which affect the fertility, pH and quality of the soil. This is the case ...

Purdue Extension Educators frequently encourage homeowners to get soil tests when they want to grow new plants in an area, or try to diagnose what’s wrong with plants currently growing. One key ...