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4th Dec 2015, SILC , Future smart farmingSiraj PinjariGouri Jadhav
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Hydroponics - contentMethods ,Substrates ,Crops1. What is hydroponics ?2. Benefits-Why hydroponics?3. Soil to soiless4. Crops
Fertigation: 1. Water quality and plant nutrition.2. Nutrient solution , EC and PH.3. Fertilizers.4. Tank A ; B. And Acid Tank.
Costing1. Infra structure cost2. Operation cost3. Savings
QA
???????
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Hydroponics Hydroponics : Hydro = Water , Ponics = work
Hydroponics is growing plants in inert medium like coco-peat, Perlite, vermiculite and providing essential nutrients through water i.e. Nutrient solution.
Inert material means it does not provide nutrition.
Unlike soil which provide various nutrients to plants.
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Why hydroponics? Water scarcity at certain location.
Labour availability problems or labour cost.
Undulating land. Tillage not possible with tractor/bullocks
Soil is not cultivable (Barren Sodic soils-Kutchh).
Automation of cultivation for efficiency.
Cultivation on Roof top – terrace gardening or urban farming.
Recreation/hobby like Living wall.
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Sloppy, uneven and rocky land
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Benefits of Hydroponics Efficient use of water and fertilizer. Reduces water
consumption by around 80-90 %.
Better and efficient control on macro and micro nutrients application.
Recycling of water is possible.
Reduced labor cost on land preparation, compost , fumigation and inter-culture – removing weeds.
Better control on EC & PH.
Efficient control on soil borne diseases like root rot.
Better quality, shelf life and Productivity.
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Soil to soil-less farming
Soil farming using drip and sprinklers
Soil farming using only drip
Salads using NFT
Everything in grow bags
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Myths and realityMyth -Hydroponics should be done in polyhouseonly.
Reality –NOIt can be done in shade net / open cultivation.
Myth-It uses harmful chemicals.
Reality –NoIt uses pure water soluble fertilizers.
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Crops we grow Crop
Leafy green Lettuce
Icerberg Lettuce
Broccoli
Red Cabbage
Zucchini
Color capscicumCherry Tomato/ Tomato
White Brinjal
Kale
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Crops grownCrop Method
Cabbage Grow Bags
Cauliflower Grow Bags
Cucumber/ Dodka / Karle Grow BagsChillies Grow Bags
Tomato Grow Bags
Mutter / ghevda Grow Bags
Methi, pala etc Trays
Flowers –Rose Pots / grow bags
Gerbera Pots / Grow Bags
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Fertigation Hydroponics
Saves 90 % water.
Imagination of layman. NFT.
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Methods1. SUB IRRIGATED
2. DWC – Deep water culture.
3. Wick Method.
4. Aeroponics
5. Ebb and Flow.
6. NFT – Nutrient film technique.
7. TOP IRRIGATED
8. Drip method .
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Deep Water Culture- Roots need O2
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DWC
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Coco Peat Pellets
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Aeroponics
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Ebb and Flow
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NFT- Nutrient Film Technique
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Grow Bag 1 metre
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Top Irrigated - Drip Pots , troughs and Grow bags .
Pots
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Grow Bag 30 cm
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Grow Bags with Crop
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Drip irrigation. Spaghetti
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Fertigation Water quality and plant nutrition.
Water PH .
EC – Electrical conductivity.
EC of substrate.
Nutrient solution , EC and PH.
Fertilizers.
Tank A ; B Tank.
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PH
PH is a parameter that measures acidity and alkalinity of solution on scale of 0- 14
0 to 6.9 = Acidic
7 = Neutral
7.1 to 14 = Alkaline
For Hydroponics slightly acidic PH (5.5 to 6.5) is recommended for better nutrient absorption.
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PH Meter
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EC = Electrical conductivity Total amounts of salts in water determine the
electrical conductivity of water
Measured in ds/m.
1000 micro siemens/cm =1 mS/cm = 1 dS/m
It determines osmosis in roots.
EC of water with fertilizer should be less than 2 ds/m (>2 depending upon crop)
1 EC = 640 ppm.
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EC Meter
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Nutrient Solution Nutrient solution is aqueous (water) solution
containing inorganic soluble salts of essential elements like
Macro
Micro
Macro Elements Micro Elements
Nitrogen(N),Phosphorus(P), Potash (K) Calcium (Ca), Magnesium (Mg) , Sulphur (S).
Boron (B), Manganese (Mn), Zinc (Zn), Copper (Cu) , Molybdenum (Mo)
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Fertilizers used in HydroponicsName Formula/Commo
n nameNutrient % Solubility
Gm/Lit at 20 oC
Calcium Nitrate CaNo3 15.5 N ; 19 Ca 1290
Potassium Nitrate KNO3 (13-0-45) 13 N ; 45 K 316
Mono Potassium Phosphate
0-52-34 52 P ; 34 K 226
Magnesium Sulphate MgSo4 Mg 9-10 ; S 13 335
Potassium Sulphate K2SO4 (0-0-50) K-50 , S - 18 111
Ferrous Chelated Fe EDTA 12 % Fe
Fe EDDHA 6 % Fe
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MicronutrientsElement Source
Boron Borax
Disodium Octaborate (Solubor)
Zinc ZnSO4 7H2O. Zn-Sulphate
Manganese MnSO4. Mn-Sulphate
Copper CuSO4 (Blue copper)
Molybdenum Sodium Molybdate orAmmonium molybdtae
Nitric acid / phosphoric acid
pH management
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Set up design
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Tank A Contents of Nutrient solution A : grow bags
Calcium Nitrate
Potassium Nitrate
Fe EDTA
Contents of Nutrient solution A : Soil
• Urea / Calcium Nitrate
• Fe EDTA
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Tank B Contents of nutrient
solution B : Grow Bags
MgSo4
MKP
K2So4
Boron
Zinc
Manganese
Copper
Molybdenum
• Contents of nutrient solution B : Soil
• MgSo4 • MKP • K2So4 / MOP• Boron • Zinc • Manganese • Copper • Molybdenum
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Nutrient requirement mg/litCrop Nitrogen Phosphorus Potash
Tomato 125 -200 40-50 300-350
Green Vegetables 125-150 30-50 130-200
Cabbage 125-175 30-50 130-200
Chillies 125-150 30-50 200-300
Cucumber/gourds 125-175 30-50 200-250
Gerbera 100 30-50 110-140
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Ventury
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Diaphragm Pump
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Fertigation for Soil Fertigation is method of applying fertilizers with
irrigation water.
Steps must be followed
1) Soil Testing
2) Preparation of tank A and B fertilizer solution.
3) Apply through drip using diaphragm pump better than use of ventury.
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Fertigation for Soil
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Fertigationfor Soil
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CostingInfra structure cost
Small grow bag 30-35 rs
Long grow bag : 80-100 rs.
3 year life of each grow bag
Operation cost : Fertilizer cost 15000 to 40000 for 10 gunthe
Savings : no Weeds, Reduced labour, no soil born diseases/ pests, water 80-90% saving
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How to reduce cost for soil Use urea for fertigation in soil (1/3 reduction in
fertlizers use)
Use Muriat of potash (1/3 reduction in fertlizer use)
Cost of fertilizer.
Hydroponics – 15000 to 40,000 per 10 R.
Cotton – 3600 per acre
Banana -25,000-30,000 per acre
Pomegranate -15,000 per acre
Papaya – 15,000-20,000 per acre
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Thanks Siraj Pinjari : 9823 691 404
Gouri Jadhav : 9325 20 6907
Earth Alliance
77 580 111 74