CHRIS SATTLBERGER / SCIENCE PHOTO LIBRARY CHRIS SATTLBERGER / SCIENCE PHOTO LIBRARY
Hothouse cultivation of plants under plastic (polythene) sheeting. Fruit and vegetable crops are grown under plastic sheeting to protect them from extremes of temperature and from excessive water loss by evaporation. Crops can be grown all year round, and land covered with hothouses can yield three times more produce than uncovered land. Photographed in southern Spain.
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