Leachate

A liquid that has passed through unprocessed organic material. Leachate may contain pathogens, phytotoxins and anaerobic microorganisms that could be harmful to plants. Related Images:

Photosynthesis

(1) The process in which green plants convert light energy from the sun into chemical energy in order to produce carbohydrates. (2) Formation of carbohydrates from carbon dioxide and a source of hydrogen (as water) in the chlorophyll-containing tissues of plants exposed to light. Related Images:

pH

The acidity or alkalinity of a solution on a scale of 0-14, with a value of 7 signifying neutral, values below 7 signifying acidic, and values above 7 signifying alkaline. Relates to the concentrations of hydrogen (H+) ions in the soil. pH values are logarithmic. Related Images: