Page 8 - Growing Fruit, Vegetables and Ornamental Plant In Geothermal Greenhouses
P. 8

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.



                                                                                                                 3
   3   4   5   6   7   8   9   10   11   12   13