The use of small electrical motors、Heating by forced circulation and Electrical purmps
ancient China
traditional Chinese greenhouse
China,Mesopotamia,Egypt,Israel,Greece and Rome
grew valuable plants inpots and placed them indoors at night or duringcold periods to protect them.Sometimes,plantswere grown on wheelbarrows that could casily bebrought into a grotto,cellar or room at night.
Greek
mentioned moving plants into the peristyle ( verandah in aclosed courtyard of a Greek house) at night andheating soil by mixing it with decaying manure orcompost.【酿热温床】
372 to 287 BCE
The cultivation of out of scason plants was intensely studied in ancient Athens and Rome.
definition of greenhouse: the greenhouseis defined as a transparent enclosure designed togrow or temporarily protect plants.