HORTICULTURE

Detailed explanation-1: -Hydroponics is the technique of growing plants using a water-based nutrient solution rather than soil, and can include an aggregate substrate, or growing media, such as vermiculite, coconut coir, or perlite. Hydroponic production systems are used by small farmers, hobbyists, and commercial enterprises.

Detailed explanation-2: -Aeroponics is the practice of growing plants in an air or mist environment without the use of any substrate (Fig. 9.3). That is, the plant roots are suspended in the air and are misted or sprayed periodically with a nutrient solution or aerosol of nutrient solution.