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Hydroponic food production is the only way to solve starvation and hunger in the future as the world population is exploding... The future agriculture will be in multistoried vertical farms inside the cities which is sufficient to feed the urban populations.... more

Soil Free Hydroponic Mediums

In hydroponics, soil free mediums are used for starting seeds and providing support to the plant. Plant roots need both air and water and so a perfect medium is one that is able to hold a nearly equal concentration of air and water. The determining factor in water/air holding capacity of a medium is the small spaces between each granule or fiber.

There are many types of sterile substances with varying water/air holding capacities which can be used as a medium. Most common media types are Coco peat, Perlite, Expanded clay pellets, Rockwool. You could also use sand, gravel, saw dust, sponge as grow media.

Coco Peat: Our favorite loose growing medium is Coconut Fiber or Coco peat. It represents a major step forward in organic soil free potting mediums. It has the water retention of vermiculite and the air retention of perlite. It is a completely organic medium made from coconut husks.

Ground up and sterilized coco peat offers plants the perfect rooting medium and protection against root diseases and fungus infestation. Coco peat is a completely renewable resource, unlike peat moss which is rapidly becoming depleted from overuse.

Perlite: Perlite has been around for the longest time of all these soilfree mediums. Made from air-puffed glass pellets, and literally as light as air,