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(Agriculture) (functioning as singular) the science of agriculture
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌdʒi əˈpɒn ɪks)

n. (used with a sing. v.)
1. the art or science of agriculture.
2. gardening or farming in soil (contrasted with hydroponics).
[1600–10; < Greek geōponikós, derivative of geōpón(os) farmer]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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In vertical farming food from plants iscultivated using indoor agriculture methods of growing produce in vertically stacked layers using geoponics, hydroponics, and aeroponics," he explained.
GEOPONICS A Study of the Earth beneath the surface B Theory of rock formation C Science of agriculture who am I?
Berkeley concludes that “the stage is set for a paradigm shift in crop production from conventional geoponics or cultivation in soil to hydroponics or soil less cultivation.