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pineapple pit
A pineapple pit is a method of growing pineapples in colder climates.
This method of cultivation was invented by gardeners in the UK, during the Victorian era.〔The Lost Gardens of Heligan Handbook, 2002 Updated 2007, copyright Heligan Gardens Ltd.〕
==Method of cultivation==
The pineapple pit consisted of three trenches covered with glass, slightly below ground level, connected with two cavity walls. The outer troughs were kept filled with 15 tonnes of fresh horse manure, which gave off heat as it decomposed. This heat passed through small gaps at the bottom of the wall, rose up, and was then forced through gaps at the top of the wall, into the central trough. The central trough is where the pineapples were grown, at an artificially high temperature, due to the manure.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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