Basic information about hydroponics.

1. Department of Biotechnology
Sahyadri Science College , Shivamogga , Karnataka
Seminar on : Hydroponics
PRESENTED BY
UNDER THE GUIDANCE
Kavya H D
1st M.Sc , 1ST Sem
Sahyadri Science
College
Shivamogga
Dr . Lakshmi Narayan
Lecturer
Department of Biotechnology
Sahyadri science college
Shivamogga

2. CONTENT :
• Introduction
• History
• What is Hydroponic system
• Types of Hydroponics
• Commonly used growing media for hydroponic culture
• Advantages
• Disadvantages
• Plants grown in hydroponics system
• Conclusion
• Reference

3. What does plant need ?
Soil is just a medium to provide nutrients to the plant . water is good medium as soil.

4. Today Indian farmers face the following challenges
1.Drought conditions and unpredictable weather
2.Rising temperature
3.Polluted water system
4.Lack of irrigation
5.Poor water management
6.Under-nourished or over nourished crops

5. Introduction
• Hydroponics is a subset of hydroculture.
• Hydroponics is one methodology of soil - less cultivation.
• It is method of growing plants using mineral nutrient solution , in water , without soil.
• The word was derived from the greek words, HYDRO (water) and PONOS (labour) literally “water working”

7. What is Hydroponics system ?
Plant grows through a process called photosynthesis , in which
They uses sunlight and a chemical inside their leaves called chlorophyll to covert
Carbon-di-oxide and water into glucose and oxygen.
6CO2 + 6H2O C6H12O6 +6O2
There is no mention of “soil” anywhere in that and all the proof you need that
Plants can grow without it. What they do need is water and nutrients both easily
Obtained from soil. But if they can get these things somewhere else- say by standing
With their roots in a nutrient rich solution. They can do without soil altogether. That’s
The basic principle behind hydroponics.

9. Types of Hydroponics system
1. Wick system
2. Deep water culture
3. Ebb and Flow (Drain and Flood)
4. Drip system recovery
5. NFT(Nutrient Film Technique)
6. Aeroponic system

10. WICK SYSTEM

11. DEEP WATER CULTURE

12. EBB AND FLOW ( FLOOD AND DRAIN)

13. DRIP SYSTEM

14. NUTRIENT FILM TECHNIQUE

15. AEROPONIC

16. Commonly used growing media for hydroponic culture :
• Coco coir
• Clay pellets
• Perlite
• Vermiculite
• Rockwool

17. • Plants require 17 essential elements to grow and reproduce.
• The first three are Hydrogen , Oxygen and Carbon.
• Other 14 are:
Macro-Elements: Nitrogen, Phosphorous, Potassium, Calcium, Magnesium
Sulfur.
Micro-Elements: Iron, Manganese, Copper, Zinc, Boron, Chlorine,
Molybdenum, Nickel.

18. ADVANTAGES:
• Higher yields achieved in a smaller space.
• Nutrients precisely controlled.
• Grow, bloom and boost formulas used at the appropriate growth stage.
• Soil- borne pests and diseases are eliminated.
• Weeds are eliminated.
• Plants are healthier and reach maturity faster.
• Automation is possible.

19. DISADVANTAGES:
• Production is management, capital and labor intensive.
• Cost of initial investment on hydroponic system is high.
• A high level of expertise is required.
• Daily attention is necessary.
• Specially formulated, soluble nutrients must always be used.
• Some water born diseases can spread rapidly in recirculation system.

20. Plants grown in Hydroponic systems

21. Conclusion

22. References:
• MUNOZ, Hector. 2005. Hydroponics Home-based Vegetable Production,
System Manual.
IICA , Georgetown, Guyana.
• ECHEVERRIA, Laura Perez.2008. Hydroponics for Home.
IICA , San Jose , Costa Rica
• ROBERTO, Keith. Fourth edition. Hydroponics Technology.
• https://home.howstuffworks.com
• https://www.simplyhydro.com
• https://www.epicgardening.com