Page 8 - Growing Fruit, Vegetables and Ornamental Plant In Geothermal Greenhouses
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1.2.3. Countr es n the Temperate Cl mate Zone
Spa n, France, Japan, Turkey, Italy, Greece and Israel are countr es n the temperate cl mate
zone w th an annual average of 10 oC to 20 oC. Favorable env ronmental cond t ons n these
countr es make greenhouse act v t es more profitable. The h gh average temperature n w nter
months reduces greenhouse heat ng costs and an ncrease n greenhouse areas s observed n these
countr es.
Cons der ng the common features of the countr es n th s belt;
· The greenhouse cover mater al used s plast c.
· Greenhouse operat on nvestment cost s low.
· Greenhouse heat ng costs can be kept at the lowest level.
· In these countr es, greenhouse act v t es can be carr ed out mostly as spr ng and autumn firstfru ts.
· Desp te the low nvestment and operat ng costs, the low level of product on technolog es
n greenhouses reduces the y eld and qual ty obta ned from greenhouses.
1.2.4. Countr es w th Two Cl mates
The ma n countr es n two cl mat c zones w th annual average temperatures between 0 °C and
20 °C are the Netherlands, Egypt, Morocco, Italy, Spa n, Belg um and Ch na. The common feature
n these countr es s glass and plast c greenhouses together. Wh le greenhouses n Med terranean
countr es have these features, h gh technology s also appl ed n plast c greenhouses n the USA
and Japan.
Due to the ncrease n the cost of greenhouse heat ng all over the world, greenhouse
management s sh ft ng from cold reg ons to temperate reg ons, and towards reg ons where
the season s su table and heat ng costs are low n w nter. For th s reason, the most su table
countr es for greenhouse bus nesses are those at 30-40 lat tudes. Wh le the temperature ncreases
below the 30th lat tude, the need for cool ng becomes the heat ng need due to the decrease n a r
temperature above the 40th lat tude.
1.3. Analys s of Greenhouse Act v t es by Country
When greenhouse cult vat on exper ences are exam ned n c t es around the world, from Spa n's
wh te-roofed c ty Almer a to tomato parad se Flor da, no matter wh ch country one goes to,
the potent al to sat sfy the consumer w th the qual ty of the products produced n modern
greenhouses and the producers w th the r earn ngs s always h gh. Greenhouse cult vat on,
wh ch s appl ed n large agr cultural areas, espec ally n countr es w th d fficult cl mat c cond t ons,
g ves strength to the agr cultural sector. More prec sely, w th modern greenhouse cult vat on, t s
poss ble to grow bananas n Iceland and tomatoes n Canada.
1.3.1. Greenhouse Plant ng n Spa n
It s the first country that comes to m nd when t comes to greenhouse cult vat on. Spa n,
the largest greenhouse country n Europe, s Turkey's b ggest r val n th s regard. 43 thousand
hectares of a total area of 52 thousand hectares s n the c ty of Almer a, wh ch s located n the
south of Spa n and known as the c ty w th the wh te roof. In Spa n, 80% of greenhouse areas are
reserved for vegetables, 15% for fru t and the rema n ng 5% for seedl ng cult vat on. The ma n
products produced are tomatoes, peppers, cucumbers, green beans, melons and watermelons.
Wh le Almer a, the wh te-roofed c ty of the country, had barren lands unt l about 25 years ago,
today t has l terally turned nto a greenhouse parad se w th mported so ls, hydropon c systems,
dr p rr gat on and chem cal fert l zers.
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