Hydroponic is a subset of hydro-culture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as Coco peat, perlite, gravel, mineral wool, expanded clay pebbles or coconut husk.

Researchers discovered in the 18th century that plants absorb essential mineral nutrients as inorganic ions in water. In natural conditions, soil acts as a mineral nutrient reservoir but the soil itself is not essential to plant growth. When the mineral nutrients in the soil dissolve in water, plant roots are able to absorb them. When the required mineral nutrients are introduced into a plant's water supply artificially, soil is no longer required for the plant to thrive. Almost any terrestrial plant will grow with hydroponics. Hydroponics is also a standard technique in biology research and teaching.

Advantages of Hydroponics

Some of the reasons why hydroponics is being adapted around the world for food production are the following:

  • The growth rate on Hydroponic plant it 30 to 50 percent faster than a soil plant.
  • No soil is needed for hydroponic..
  • The water stays in the system and can be reused - thus, a lower water requirement.
  • It is possible to control the nutrition levels in their entirety - thus, lower nutrition requirements.
  • No nutrition pollution is released into the environment because of the controlled system
  • Stable and high yields.
  • Pests and diseases are easier to get rid of than in soil because of the container's mobility.
  • Ease of harvesting
  • No pesticide damage.
  • Plants grow healthier.
  • It is better for consumption.

Today, hydroponics is an established branch of agronomy. Progress has been rapid, and results obtained in various countries have proved it to be thoroughly practical and to have very definite advantages over conventional methods of horticulture.

There are two chief merits of the soil-less cultivation of plants.

First, hydroponics may potentially produce much higher crop yields.

Also, hydroponics can be used in places where in-ground agriculture or gardening are not possible.


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