bio presentation july 2011

8/6/2019 Bio Presentation July 2011

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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

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