Chem 30-2: Soluble Salt and Electrical Conductivity
Objective: To explore toxicities that may occur in compost piles
Introduction: Compost piles that contain a higher concentration of plant nutrients will also have a higher “salt” level, or electrical conductivity (EC). EC is a measure of the soluble nutrients in the compost and can be measured with an EC meter. Although specific toxicities may occur due to a high concentration of certain minerals, soluble nutrients may reduce plant growth by osmotic effect.
Curriculum Connections: Unit B – 1.1-1.4k, 1.1-1.2sts Unit C – 1.1-1.4k, 2.1-2.4k, 2.3s