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In agriculture and gardening, a cold frame is a transparent-roofed enclosure, built low to the ground, used to protect plants from adverse weather, primarily excessive cold or wet. The transparent top admits sunlight and prevents heat escape via convection that would otherwise occur, particularly at night.
Cold-season crops, like root vegetables, brassicas (cauliflower, broccoli, etc.), and leafy greens, may get an extended growth period when moved into an underground greenhouse, even if the outdoor ...
In a world where the climate is increasingly hot and volatile, farmers are having trouble keeping their crops cool. A startup founded in the desert of Saudi Arabia thinks it might have a solution ...
Thus, a hot or cold climate is more manageable underground. Also, possible air pollution gases can be more easily filtered. There is theoretically much space below ground. Thus, underground farming could be one part of the solution for higher food security. On the downside are that current high energy costs for the growth lamps.
Walipini The interior of a walipini. A walipini is an earth-sheltered cold frame. [1] [2] [3] It derives its name from the Aymaran languages. [4]It is similar in concept to the pineapple pit that was used, as the name implies, to cultivate pineapple and other exotic fruits in Victorian era Britain and in the cold plains of pre-revolution Russia.
STES is also used extensively for the heating of greenhouses. [49] [50] [51] ATES is the kind of storage commonly in use for this application. In summer, the greenhouse is cooled with ground water, pumped from the “cold well” in the aquifer. The water is heated in the process, and is returned to the “warm well” in the aquifer.
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