Table of Contents-
Greenhouse site selection factors-
Are you planning to set up a business for greenhouse cultivation?
Here are all you need to qualify for greenhouse site selection factors.
The specific selection of a greenhouse location must take into account a variety of factors:-
Topography for greenhouse site selection:-
- The location must be totally flat.
- With a slope in the main axes between 0 and 0.5 per cent.
Microclimate for greenhouse site selection:-
- Frequently foggy areas should be avoided.
- Areas that are well illuminated and free from shadows (hills, buildings) are preferred.
Harsh weather conditions:-
- Sites should be protected from cold winds.
- If snow is to be expected, greenhouses must be positioned sufficiently far from trees or other obstacles to the wind, since snow may accumulate around such obstacles and cause more cold.
- The roof should be strong enough to dominant winds.
- The availability of water sufficient quantity and of good quality.
- Saline water is not preferred.
- Especially in regions of high rainfall. Places with a high water table must be avoided.
- The media should have properties appropriate for horticultural crops.
- In urban areas, air pollution conditions must be evaluated because particles can accumulate on the greenhouse cladding material, which can limit solar radiation (e.g. dust from factories) or damage the greenhouse cladding material.
Infrastructures for greenhouse site selection:-
- Proximity to transport networks (e.g. roads, railway), access to communication systems (e.g. telephone, internet) and availability of energy (e.g. gas, electricity) must all be considered.
- The main objective is of having maximum light in the greenhouse.
The best site offers the best climate conditions with the lowest production costs, with special attention to the availability of labour and inputs (water quality, electricity, communications etc.), and the distance to markets (transportation costs).
Unless there is an imperious need (and very high selling prices), greenhouse production is not recommended in geographical areas with unsuitable climate conditions requiring notable and expensive artificial climate control.
To avoid excessively high temperatures, the traditional and most economically viable method is the renewal of interior air by means of ventilation.
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