Soil organic matter is important for maintaining a healthy environment for plants and soil micro-organisms. Its main constituent, soil organic carbon, plays a vital role in removing CO2 from the
The term hydroponics originates from the ancient Greek "hydros," meaning water, and "ponos," meaning work. Hydroponics is a subset of hydroculture, which is a method of growing plants without soil by instead using mineral nutrient solutions in a water solvent. Terrestrial plants may