"agrology : (rare) A subdiscipline of agronomy (the science of utilizing animals, plants, and soils)..."

“agrology : (rare) A subdiscipline of agronomy (the science of utilizing animals, plants, and soils) and of soil science which addresses the influence of edaphic (soil-related) conditions on crop production for optimizing it.
(chiefly Canada) The science and art of agriculture.
Today is Earth Day, a day for observing the need to protect the Earth.”

- https://en.wiktionary.org/wiki/agrology#English

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