1. Welcome 1

2. HYDROPONIC TECHNOLOGYA
SEMINAR
HYDROPONIC TECHNOLOGY
SUBMITTED TO,
William C. Bryant H.S.
PRESENTED BY:
Mr. Fuentes
(SBN11QBO-01) 2

3. CONTENTS: 1. Introduction 2. History of Hydroponics
3. Hydroponic system
4. Why grow things Hydroponically ?
5. Working
6. Types of Hydroponic Systems
7. Materials used & Nutrient Solution
8. System Requirements
9. Advantages and Disadvantages
10.What can you grow ?
11.Conclusion 3

4. INTRODUCTION
 “Cultivation of plants in water”
 It is technique for growing plants without soil. Utilizing this technology, the roots absorb balanced
nutrient dissolved in water that meets all the plant developmental requirements.
 Many aggregates and media support plant growth
 Also called as “ the cultivation of plants without using soil.” 4

5. HISTORY OF HYDROPHONICS
 Hydroponics became popularized by the news media in the 1920s when a scientist named Dr.
William F. Gericke of the University of California when he put laboratory experiments in plant nutrition on a commercial scale. So he termed
these nutritive culture systems HYDROPONICS.  The word was derived from the Greek words, HYDRO (water), and PONOS (labor), literally
“water working”. 5

6. WHAT IS HYDROPONIC SYSTEM ?
Photosynthetic process:
Carbon Dioxide + Water → Glucose + Oxygen 6CO2 + 6H2O → C6H12O6 + 6O2
There’s no mention of "soil" anywhere in there.
Plants can grow without it. 6

7. WHY GROW THINGS HYDROPONICALLY ?
Photo courtesy of NASA Kennedy Space Center (NASA-KSC) 7

8. they need much more easily than plants growing in soil.
 Benefits sometimes questioned…..
 But hydroponic growers often got many times greater yields than conventional methods.
 Because hydroponically grown plants dip their roots directly into nutrient-rich solutions, they get what
they need much more easily than plants growing in
soil.
 With smaller roots, you can grow more plants in the same area and more yield.
 Many pests are carried in soil, so doing without it generally gives you a more hygienic growing system
with fewer problems of disease. 8

9. HOW DOES HYDROPONICS WORK ?
Stand your plants in a plastic trough and let a
nutrient solution trickle past their roots
(with the help of gravity and a pump). 9

10. TYPES OF HYDROPONIC SYSTEM
1. Wick System
2. Water Culture
3. Ebb & flow (Drain and flow)
4. Drip system Recovery/ Non-
recovery
5. N.F.T.(Nutrient film Technique)
6. Aeroponic system 10

11. 1. WICK SYSTEM
2. WATER CULTURE 11

12. 3. EBB & FLOW (DRAIN AND FLOW)12

13. 4. DRIP SYSTEM

14. (NUTRIENT FILM TECHNIQUE)
5. N.F.T.
(NUTRIENT FILM TECHNIQUE) 13

15. 6. AEROPONIC 14

16. MATERIALS USED IN HYDROPONICS 1. Coco Coir Has an excellent air to
water ratio with great
water retention 15

17. 2. Rockwool  A fibrous material made from melted rock .
 Not Biodegradable  Hazardous to health  Must be pH balanced  Excellent water
retention. 16

18. 3. Expanded clay Pellets Most popular media
 Drain quickly & pH neutral
 Reusable
 Used in ebb & flow, water culture
 50/50 mix of clay and coco creates a
breathable medium  Heavy 17

19. 4. Potting soil (Perlite)
 Perlite + Coco Coir +
Vermiculite
 Synthetic materials
 are puffed/ heated to
produce light and porous material 18

20. Nutrient Solutions & The results?
 In Hydroponics, nutrient control is easy  A nitrogen-rich Grow Formula
 A phosphorous and potassium-rich Bloom Formula
& The results?
Bumper crops of delicious fruits and vegetables every time. 19

21.  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
Microelements: Iron, Manganese, Copper, Zinc, Boron , Chlorine, Molybdenum, Nickel 20

22. SYSTEM REQUIREMENTS  pH Control
5.8 and 6.4, or slightly acidic  Electrical Conductivity (EC)
Mho
 Horticultural Lighting
Metal Halide (MH), High Pressure Sodium (HPS) lamps.
 Temperature and Environmental Control
68-
78 degrees F. 21

23. ADVANTAGES
 Higher yields achieved in a smaller space.  Nutrients precisely controlled.
 Grow, bloom and boost formulas used at the appropriate growth stage.
 Indoor gardens grown using full-spectrum horticultural lighting.
 Soil-borne pests and diseases are eliminated.  Weeds are eliminated.
 Plants are healthier and reach maturity faster.  Automation is possible 22

24. DISADVANTAGES  Cost of initial investment
 Production is management, capital and labor intensive.
 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. 23

25. WHAT CAN WE GROW ? 24

26. WE CAN GROW HYDROPONIC GARDEN AT OUR HOME …. USING JUST WATER BOTTLES25

27. WHAT WE ARE BUILDING… 26

28. 27

29. CONCLUSION Progress has been rapid and results obtained in
various countries have proved that this technology is
thoroughly practical and has very definite advantages over conventional methods of crop production. The main advantages of soil-less cultivation is the
much higher crop yields.
People living in crowded city streets, without gardens, can grow fresh vegetables and barren and
sterile areas can be made productive at relatively low
cost. 28

30. REFERENCES
1. MUNÕZ, Héctor Hydroponics Home-based Vegetable Production System Manual.
IICA, Georgetown, Guyana
2. ECHEVERRIA, Laura Perez Hydroponics for Home. IICA, San Jose, Costa Rica
3. ROBERTO, Keith. Fourth edition. Hydroponics Technology. 29

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