green house its types crop grown and their varieties and israel model of green house installed at indian agriculture research institute new delhi

1. VISIT TO GREEN HOUSE IARI,
NEW DELHI

2. INTRODUCTION
• India has entered the era of green house
cultivation more recently and the total area
under protected vegetable production is nearby
approached 10000 ha
• The protected cultivation technology can be
utilized for year round and offseason cultivation
of high value low volume vegetable crops,
production of virus free seedlings , quality hybrid
for seed production and as a tool for disease
resistance breeding programmes .

3. THREE FEATURES OF PROTECTED
CULTIVATION
• GREEN HOUSE GROUP:- Glass house,
polyhouse, shade net house, insect proof net
house.
• TUNNEL GROUP:- high tunnel, low tunnel,
clotches.
• SURFACE COVER GROUP:- plastic mulch,
biomulch.

4. GREEN HOUSE GROUP
FEATURES MATERIAL USED
FRAME MATERIAL WOOD/STEEL/ALUMINIUM
GLAZING MATERIAL GLASS/POLYETHYLENE
COVERING MATERIAL ACRYLIC/FIBRE GLASS/POLYCARBONATE
FILMS POLYETHYLENE /PVC/POLYESTER

5. TUNNEL GROUP
• Also called micro polyhouse
• Temporary structure, for short duration and
need based structure
• High tunnel:- also called walking tunnel 1-2 ft
height , mostly 1m wide suitable
• Low tunnel:- not walking type, cucurbits can
be grown in early 60- 90 days during months
of november, december, january.

6. SURFACE COVER GROUP
• Plastic mulch:- creats more efficient
microclimate through moisture retention
(saving moisture- 4%) , minimise weed loss
upto 90-95 % , increase productivity(25-30)%.
• Sandy soil size of mulch 25-30 micron and clay
soil 50-100 micron.
• Suitable for rainfed crop conditions.
• Increase crop life upto 60 days
• Increase earliness by 20- 30 days.

7. CROP ROTATION IN GREEN HOUSE
• PLAINS:- tomato, capsicum,chillies, cucumber
( starts last week of july – last week of august
upto may-june)
• HILLS:- starts from march april and upto
november crops rotation will takes place.

8. QUALITY OF COVERING MATERIAL
• POLYTHENE:- 200 micron for polyhouse and
100 micron for high tunnel, uv stablized
transparent.
• SHADE NET QUALITY :- 30-50% Shade in some
cases upto 70 % , uv stabilized green and black
colour shade nets.
• I.P NET QUALITY :- white, made up of nylon
and size 40-50 mesh per square inch.
• PLASTIC MULCH:- 25- 50 micron normally.

9. FACTORS INVOLVED FOR CROP
PRODUCTION
• TEMPERATURE:- 25-30⁰C
• LIGHT :- 700-800 Watt per metresecond
• RELATIVE HUMIDITY:- 65-75%
• CARBONDIOXIDE:- 300-1000 ppm
• WATER :- depends on crop
• NUTRIENTS:- Proper ratio of all essential
nutrients should be given( fertigation process
employed in green houses for fulfilling
regquirement of water and nutrients)

11. QUALITY OF IRRIGATION WATER
• ELECTRICAL CONDUCTIVITY:- ≤ 1
• PH :- 7
• TOTAL DISSOLVED SOLIDS:-1000-1500
• Drip irrigation is mandatory for every every
protected cultivation technology.
• At IARI,ND israel automatic model is used for
fertigation process which is fully
computerized.

12. CULTIVARS OF CROPS GROWN IN
PROTECTED CULTIVATION (IARI)
• TOMATO:- GS600, Himsour, rituja, ID 32, ID 37
• CUCUMBER:- Aasma, Viza, Defender, Sandhya
• CAPSICUM:- 1) Red- insperation, laxmi
• 2) YELLOW- Kanchan, supergold, California
wonder, delux, small orange
• CHILLI :- Indus 365, US730, angel, hungarian
• CHERRY TOMATO:- Pusa cherry
• SUMMER SQUASH:- Long green, pusa alankar,
dhoom 2, DS-8

19. NURSERY AT IARI NEW DELHI

20. SEEDLINGS RAISED IN NURSERY

21. PRECAUTIONS IN PROTECTED
CULTIVATION
• All ventilation curtains should be closed
during evening to night.
• Ventilation should be provided 2-3 hours in
winter and 4 hours in summer.
• During winter season open shade net cover,
summer from 11am - 4 pm cover shade net
• Drip irrigation mandatory
• Fertigation schedulling 10-15 days interval
• Pollination is must in tomato by blowers in
winter season