bio presentation july 2011

8/6/2019 Bio Presentation July 2011

http://slidepdf.com/reader/full/bio-presentation-july-2011 1/15

Direct seeding, Hydroponics and Aeroponics



Direct Seeding



� The seeds are sown directly into the soil by

using special mach

ine� Less water needed, plants achieve faster

growth and these increase the yields

� Example : paddy planting



� Is a commercial technique for growing

certain plants in culture solution� The root of the plant are immersed in a

solution which contains all the

macronutrients in the correct proportion

� The culture solution is aerated to provide

sufficient oxygen to respiration



� Is a modified technique of hydroponics

� The plants are suspended in a specialchamber with the roots exposed to the air

� Nutrient solutions are sprayed onto the roots

of the plant at suitable intervals. Light

intensity and temperature can be controlled

� Almost all type of vegetables can be

cultivated by using this methods and higher

yield can be obtained



THE END



NEO CYBERPRINCE

bio presentation july 2011

Documents