hydroponic systems for grow lettuce

Basic Information     

What are the hydroponics systems

Hydroponics is a subset of hydroculture 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 perlite, gravel, mineral wool, expanded clay

pebbles or coconut husk.

Greenhouse Hydroponics Advantage

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

• No soil is needed for hydroponics
• The water stays in the system and can be reused - thus, lower water costs
• It is possible to control the nutrition levels in their entirety - thus, lower nutrition costs
• 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
• It is easier to harvest
• No pesticide damage
• Plants grow healthier
• It is better for consumption

Greenhouse Hydroponics Disadvantage

 Without soil as a buffer, any failure to the hydroponic system leads to rapid plant death. Other disadvantages

 include pathogen attacks such as damp-off due to Verticillium wilt caused by the high moisture levels associated

with hydroponics and over watering of soil based plants. Also, many hydroponic plants require different fertilizers

 and containment systems