Purdue Extension Educators frequently encourage homeowners to get soil tests when they want to grow new plants in an area, or ...

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 ...

Therefore, for optimum plant growth, testing your soil pH and nutrient status every 3 to 5 years is highly ... Consult the Safe Urban Gardening Initiative: Lead Testing with Map and the Garden Safe ...