study of productivity of land
• (n.) The science of the distribution and management of land.
Ag`ro·nom'ics noun The science of the distribution and management of land. 
Agronomics is the science of the distribution and management of land.
agronomics The science of the distribution and management of land. Cross references of word families related directly, or indirectly, to: 'land, ground, fields, soil, dirt, mud, clay, earth (world)': agra-; agrest-; agri-; argill-; choro-; chthon-; epeiro-; geo-; glob-; lut-; myso-; ...