Hydroponics is a soilless gardening technique where plants' roots absorb nutrients dissolved in water, meeting plants' developmental needs. It became popular in the 1920s when a scientist commercialized laboratory experiments growing plants without soil. Hydroponics allows for higher yields using less space as plants receive precisely controlled nutrient-rich solutions. Various systems precisely regulate pH, temperature, and nutrients to maximize plant growth. While requiring more management, hydroponics eliminates pests and weeds while producing healthier plants that reach maturity faster. It is a practical technique for growing any vegetable with definite advantages over conventional soil-based methods.

1. HYDROPONIC
S
Soilless Gardening
By:
JONATHAN E. ESQUEJO
SHS-Teacher II
MAYROSE E. CASTULO
SHS-Teacher II

2. Agenda
Introduction
History
Why grow plants hydroponically?
Materials used and nutrient solution
System Requirements

3. Advantages and Disadvantages
What can you grow?
Conclusion

4. Introduction
Hydroponic is a technique for
growing plants without or less
soil. Utilizing this technology,
the roots absorb balance
nutrient dissolve in water that
meets all the plant
developmental requirements.

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

6. Why grow plants Hydroponically?
 Some hydroponic growers 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

7. Materials Used in Hydroponics
Coco Coir has an excellent air
to water ratio and with great
water retention

8. Materials Used in Hydroponics
Potting soil (Perlite) -
Perlite + Coco Coir +
Vermiculite
are puffed/ heated to
produce light and porous
material

9. Materials Used in Hydroponics
Perlite is a naturally occurring
mineral that is added to garden
soil to improve aeration, water
retention, and drainage. It looks
like small, white Styrofoam balls
and is commonly found in
potting soil and seed-starting
mixes.

10. Materials Used in Hydroponics
Vermiculite is a naturally
occurring mineral that takes the
form of glossy flakes, varying in
color from dark gray to sandy
brown.
Vermiculite helps to aerate soil
while simultaneously retaining
water and nutrients, which it then
releases over time.

11. Materials Used in Hydroponics
Carbonized rice hull +
sand = Ratio (2:1)

12. Nutrient Solutions
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

13. Nutrient Solutions
 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

14. System Requirements
pH Control 5.8 and 6.4
Temperature and
Environmental Control
68- 78 degrees

15. 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.

16. 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.

17. WHAT CAN WE GROW?
 ANY VEGETABLE THAT YOU CAN THINK OF.

21. 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 sterile areas can be made
productive at relatively low cost.

22. The way to get
started is to quit
talking and begin
doing.
Walt Disney