Acidic: A soil, compost, or liquid with a pH between 0 and 7.0 (on a scale of 0.0-14.0). Often referred to as “sour” soil by gardeners. Aeration: Any method of loosening soil or compost to allow air to circulate. Aerobic: Describes organisms living or occurring only when oxygen is present. Alkaline: A soil with a … Continue reading Terminology