AGRICULTURAL RESEARCH AND EXTENSION UNIT
Transcript of AGRICULTURAL RESEARCH AND EXTENSION UNIT
11.
AGRICULTURAL RESEARCH ANDEXTENSION UNIT
(Food and Agricultural Research Council)
DIFFERENT GREENHOUSE MODELSAVAILABLE LOCALLY
(Approximate cost of structure and fertigation system)
Introduction
Hydroponics can be defined as the science of growing plants in a mediumother than soil. The word hydroponics is derived from.two Greek words:"hydro" (water) and "ponos" (labour). The plants that are grown inhydroponics are fed with a nutrient solution. The nutrient solution consists ofwater into which are mixed all the essentials mineral elements needed by theplants for their growth and development.
Hydroponics cultivation is usually carried out under protected structures. InMauritius, both imported and locally mounted structures have beenimplemented by hydroponics promoters for cultivation of either vegetablesand or ornamentals.
The price of imported greenhouse structures, coverings and fertigationsystem ranges from Rs 1500/m2 to Rs 2500/mZ, depending on the model. Thelocally mounted tunnel is around Rs 1400/m2
- Rs 2500/m2•
The cost for land preparation and mounting of greenhouse varies from Rs300/m2
- Rs 400/m2 and annual operation cost (including cost of growingmedium, seedling production, fertilizers, pesticides, chemicals, water,electricity, farm equipments and labour) is around Rs 635/m2
•
The price difference between locally mounted and imported greenhousestructure is mainly due to the fact that each item has to be bought separately.There is also an additional cost for bending of galvanized pipes, transportofmaterials and of numerous activities. Finally since only a few contractors areavailable for mounting oflocal greenhouse the labour cost is high.
Otherwise, promoters have the choice to import their own greenhouses andcarry out assembly by a local contactor or by the promoter himself.
Hence, all promoters have a wide range of options for them to choose from asfar as greenhouse structures and fertigation systems are concerned.
Locally mounted Greenhouse
Cost of structure, coverings and fertigation system: Rs 1,400 Im2_
2500/m2
Characteristics:(a) Height: 3.5 - 4 m(b) Width: 8-11 m for single span and 10-20m for double span(c) Can be welded or assembled with bolts and nuts(d) Insect proof net is used for the front, rear and sides of greenhouse(e) The top of the greenhouse is covered with plastic
Strong points: .(a) Can be constructed to desired heights, lengths and widths(b) Can be constructed with pipes of variable sizes(c) Manual rolling-up mechanism enables plastic to be rolled and
attached at apex during cyclonic conditions
Weak points:(a) Need skilled workers to bend pipes and to construct greenhouse.(b) Need facilities for purchase and transport of each item required.(c) For structure that is welded, it is not easy to dismantle.
The following persons can be contacted for localmounting of greenhouses:1. Mr.A.Kareemun
17General de Gaulle StreetEauCouleePhoneNo: 721-7391'
3. Mr.Harryduth SeenauthBois Cheri RoadMokaPhoneNo: 433-7174, 750~7679
2. Mr.Boodseen MahmoodRoyal RoadCampFouquereauxPhoneNo: 697-0706, 711-1503
For any technical assistance, promoter can contact the AgriculturalEngineer of AREU at Wooton Crop Research Station on:
Tel: 6708249,6708847,5702420Tel: 4982850
Richel Single Tunnel Model: Imported Green House
Origin: France
Cost of Structure, coverings and fertigation system: Rs 1625/m2
(a) Height: 2.5m(b) Width: 8m(c) Assembled with bolts and nuts(d) Insect proof net is used for the front, rear and sides of greenhouse(e) The top of the greenhouse is covered with UV stabilized plastic sheet
20011 thickness
Characteristics:
Strong points:Due to its low height this tunnel is more suitable for cool regions like thecentral plateau.
Weak points:
(a) Greenhouse heats up quickly and aeration is limited(b) Not adapted for hot regions like theNorth orWestdue to its height.
Supplier:Best Agri Ltd13 Jacmin StreetRoche BrunesPhone / Fax No.: 4675631Mobile NO.:2512021(Mr.Ajagen Veerapen)
Greenworld Model: Imported Green House
Origin: Israel
Cost of Structure, coverings and fertigation system: Rs 1600/m2
Characteristics:
(a) Height: 4m(b) Width: 9m(c) Assembled with bolts and Nuts(d) The top of the greenhouse is covered with UV stabilized plastic sheet
20011thickness(e) Greenhouse made up of3" galvanized pipes(f) Insect proof net is used for the front, rear and sides of greenhouse
Strong points:
(a) Sufficiently high greenhouse allowing a large volume of air inside(b) Strong greenhouse with wind resistance of up to 160 km/hr
Weak points:
(a) Weed mat provided is not appropriate as it is woven plastic type(b) Rolling-up mechanism for plastic sheet needs additional reinforce-
ment
Supplier:Greenworld Co. LtdVacoas, Solferino No.1.Tel: 4278113Tel: 2544013(Mr Gunshiam Boodram)
Coquillot Model: Imported Green House
Origin: Reunion Island
Cost of structure, coverings and fertigation system: Rs 1,600/m2
Characteristics:
(a) Height: 3.8m(b) Width: 9 m(c) Insect proof net is used for the front, rear and sides of greenhouse(d) Assembled with bolts and nuts only (no welding)(e) Greenhouse structure assembled on pre-cast concrete base(f) Arches made of galvanised c-profiles(g) Manual plastic roll up mechanism(h) The top of the greenhouse is covered with UV stabilized plastic
sheet of 180~
Strong points:
(a) Sufficiently high green house with efficient aeration(b) Can resist wind of up to 120-125 km/hr(c) Plastic sheet is properly stretched on top thus enabling greenhouse
to be very aerodynamic.
Weak points:
(a) Cyclonic cables should be fixed during cyclonic period(b) Expensive base concrete columns
Supplier:ETS Coquillot S.AReunion IslandTel: 0262265895Fax: 0262263805(Mr D.Coquillot)
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Plan tech Greenhouse: Imported Green House
Origin: South Korea
Cost of Structure, coverings and fertigation system: Rs 1,550/m2
Characteristics:
(a) Height: 4.2 m(b) Width: Minimum width of7 m(c) Assembled with bolts and nuts only(d) Insect proof net is used for the front, rear and sides of greenhouse(e) Both manual and electric plastic rolling-up mechanism are available(f) Galvanised 1 Y4 inch pipes are used(g) Horizontal shade curtain with automatic rolling-up mechanism is
present inside green-house(h) The top ofthe greenhouse is covered with UV stabilized plastic sheet
of eitherl OOfl,150fl or l Suu
Strong points:
(a) Sufficiently high greenhouse with efficient aeration(b) Horizontal shade curtain prevent built-up of temperature inside
greenhouse(c) Automatic and manual plastic rolling-up mechanism
Weak points:
(a) Gutter's thickness need to be increased
Supplier:Plantech LtdVillage Council RoadMorc. TaraTerre RougePhone no: 7862807,2484233,2492517(Mr P.Auckle)
ffiL-Rovero Model: Imported Green House
Origin: Holland
Cost of Structure, coverings and fertigation system: Rs 1500/m2
Characteristics:
(a) Height 3.4 m(b) Width: 9.3 m(c) Arches are made of galvanized 2 Y2 inch pipes(d) Assembled with bolts and nuts(e) Insect proof on both sides of green house(f) Manual plastic rolling-up mechanism(g) The top of the greenhouse is covered with UV stabilized plastic sheet
of 2151l thickness
Strong points:
(a) The width of the greenhouse which is 9.3 m provide more efficientaeration and space for cultural practices, spraying and harvest
Weak points:
(a) Roll up mechanism for plastic need reinforcement(b) In hot regions, the front and rear of greenhouse need to be replaced by
-insect proofinstead ofplastic(c) .,.Trellisingwire is too high and therefore need to be brought down to
. facilitate worker's job.
Supplier:Ireland Blyth AgrochemicalsRoute RoyalCassisPhone No. 207 0416(Mr. Vincent Theveneau)
Rogerfayd'herbe - High Thnne. Model
Origin: Israel
Cost of structure, coverings and fertigation system: Rs 1,4001m2
Characteristics:
(a) Height: 4 m(b) Width: 10m(c) Entirely assembled with bolts and nuts(d) 3" galvanized pipes are used(e) Insect proof net is used for the front, rear and sides of greenhouse.(t) The top of the greenhouse is covered with UV stabilized plastic
sheet of200~ thickness(g) Manual plastic rolling-up mechanism
Strong points:
(a) Greenhouse sufficiently high to provide maximum and efficientaeration
(b) Greenhouse is sufficiently large to accommodate 5 rows of plants(c) Can resist wind speed of up to 150kmIhr
Weak points:
Not experimented yet
Supplier:Roger Fayd'Herbe & Co. LtdIndustrial Zone .Plane LauzunPhone No :.208 1806(Miss Indira Pochun)
Richel Multi Tunnel Model: Imported Green House
Origin: France
Cost of Structure, coverings and fertigation system: Rs 1400lm2
Characteristics:
(a) Height: 4 m(b) Width: Minimum of 16 m(b) Entirely assembled with bolts and nuts(c) The top ofthe greenhouse is covered with UV stabilized plastic sheet
of21511 thickness(d) Insect proof net is used for the front, rear and sides of greenhouse(e) Manual plastic rolling up mechanism
Strong points:
(a) Sufficiently high greenhouse with maximum and efficient aeration(b) Available in multi-span greenhouse(c) Sufficiently wide greenhouse accommodating up to eight rows
Weak points:
(a) Not experimented yet
Supplier:Best Agri Ltd13 Jacmin StreetRoche BrunesPhone I Fax No.: 4675631Mobile No.:2512021(Mr. Ajagen Veerapen)
Jain Polybouse: Imported Green Bouse
Origin: India
Cost of Structure, coverings and fertigation system: Rs 1200/m2
Characteristics:
(a) Height: 3.5m(b) Width: Minimum of 6 m(c) Entirely assembled with bolts and nuts(d) The top of the greenhouse is covered with UV stabilized plastic sheet
of200~(e) Manual plastic rolling-up mechanism(f) Insect proof net is used for the front, rear and sides of greenhouse
Strong points:
New tunnel not experimented yet
Weak points:
New tunnel not experimented yet
Supplier:Ashoka Multipurpose Mechanical Cooperative Society Ltd.More. St Andre, Kalimaye Road,Tel: 2614227Fax: 2615554(Mr Roshan Kooblall)
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(f) IBL - Rovero model
(h) Jain polyhouse model
LIST OF EXTENSION OFFICES
Solitude Sub Office 261 9216
Maison des Eleveurs, Henrietta 684 1228
L'Unite Farmers Service Centre 4169209
Goodlands Sub Office 2820563
Riviere du Rempart Sub Office 4129969
Beau champ Sub Office 4176699
Union Park Sub Office 5770117
St Felix Sub Office 622660112
Quatre Bornes Sub Office 4664109/4976683
Mapou Demonstration Centre 266 1587 14976684
Flacq Demonstration Centre 413 2501 1497 6685
Long Mountain 2455759
Bon Accueil FSC (Monday & Wednesday) 4189482
Riviere des Anguilles Demonstration Centre 626 2554/497 6687
Saint Pierre Sub Office
6378112 or 4976687
433935D/4378,4339352
Plaisance Demonstration Centre
Agricultural Research and Extension UnitSt. Jean Road, Quatre Bornes
Tel: 230 466 3885 - Fax: 230 464 8809Email: [email protected]