Soilless agriculture

1. SOILLESS AGRICULTURE
(Hydroponics culture/water
culture/nutrient culture)
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Video

2. Contents
• Introduction
• Reasons to hydroponics
• Type of soilless culture
• Advantages of soilless culture
• Disadvantages of Soilless culture
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3. Introduction
• Technology of growing crop in a complete
nutrient solution with or without a solid
phase.
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4. 4

5. Reasons to hydroponics
• Overcome poor soil conditions
-salinity
-Rocky,Sandy,gravelly soils
-Pathogens
• Shrinking of arable land
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6. Reasons to hydroponics
• To get high yield and quality .
• Readily available nutrients(energy saving)
• Provide optimum resources for the growing
plant.
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7. Type of soilless culture
1.Solution Culture
2.Aeroponics
3.Solid media culture
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8. 01.Solution culture
Solution
culture
Circulating
methods
Nutrient Film
Technique(NFT)
Deep Flow
Technique(DFT)
Non circulating
methods
Root Dipping
Technique
Floating
Technique
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9. Circulating methods
Nutrient film
techniques
Deep flow
technique
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Plant root are directly
exposed to nutrient
solution
Use 2-3cm deep
nutrient solution

10. Non circulating methods
Root dipping
technique
Floating
technique
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Plant grow in small
contains filled with
growing media
Similar to root dipping
technique
Solution is aerated
artificially

11. 02.Aeroponics
• Plant root hang in the air are misted with the
nutrient solution
• Misting is done for avoid rapid drying
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12. 02.Aeroponics
• Root absorbed the nutrient from the nutrient
film adhere to the roots
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13. 03.Solid Media Culture
• Plant roots are developed in a growing
medium
• The substrate irrigated with a Complete
nutrient solution
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14. Solid media
culture
Grow bag culture
Hanging bag culture
Trough culture
Pot culture
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15. Grow bag
technique
Hanging bag
technique
Poly bags are arranged in
rows
Filled with growing media
(coir dust,peat,vermiculite)
Light weight media
used to grow crops
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16. Trough culture Pot culture
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Plant grown in narrow trenches
in the ground and above ground
troughs
Plants are established
in plastic
pot/polythene bags

17. Advantages of Soilless
agriculture
• Maintenance of clean products
• Year-round production
• Low soil and water born disease
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18. Disadvantages of soilless culture
• Higher initial cost
• High operational cost
• Requirement of technical know how
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19. Disadvantages of soilless culture
• Needs thorough knowledge on the agronomy
and crop physiology
• Requirement of quality water
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20. 200
*HYDROPONICS IN ACH*

21. References:
• Hi-Tech Horticulture by S. Prasad , Dharm
Singh & R. L. Bhardwaj.( pg.no- 567-585)
• Protected Cultivation by Adikant Pradhan
(pg.no143-165).
• Internet: www.researchgate.net
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22. •Vegetables cultivation in hydroponics
Suitable crops: Exotic vegetables having high selling
price.
Ex. Lettuce , Cherry Tomatoes , Bell pepper
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23. •LETTUCE CULTIVATION.....
•Initial cost of establishment in polyhouse : Rs 580/m2
•If done in indoor : Rs 3500/m2( AC , LED light...)
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24.  Water use efficiency
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25. •Standard concentration of nutrients in nutrient
solution for lettuce cultivation.
NUTRIENTS me/litre MICRONUTRI
ENTS
ppm
NO3-N 6.0 Fe-EDTA 2.5
NH4-N 0.5 B 0.2
PO4-P 3.0 Mn 0.2
SO4-S 1.5 Zn 0.01
K 4.0 Cu 0.01
Mg 2.0 Mo 0.01
Ca 4.0
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26. •Quality factors of water used for
hydroponics
pH of irrigation water : Normal range 6.5-8.4 .
 EC : 1.5-2.5 dsm-1
QUALITY FACTORS me/litre
Sodium <3.0
Chlorine <3.0
Boron <0.7
Bicarbonates <1.5
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27. • Yield of lettuce
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28. •Yield of lettuce...
In conventional system: 3.9-4 kg/m2/yr.
In hydroponic system : 41-46 kg/m2/yr
Cost of lettuce : Rs 200/kg
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