Concepts

The foundational ideas that explain why agriculture works the way it does and what it costs, from genetic resources and crop diversity through soil and environmental processes, food security and rural livelihoods, production economics, and the historical transformations and extension systems that carried science to the farmer. The tree under this category follows the top-level subject domains the FAO/CABI AGROVOC thesaurus uses to organize its own agricultural concept descriptors. Does not belong here: a named method for working land or animals, which is Practice own subject, or a named turning point told as a historical event with a date and a place, which is Milestone own subject even where a concept and a milestone share a name such as the Green Revolution.