agrology vs groundskeeping

agrology

noun
  • 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. 

  • The science and art of agriculture. 

groundskeeping

noun
  • The activity of tending an area of land for aesthetic or functional purposes; typically as an employee of a person or institution 

How often have the words agrology and groundskeeping occurred in a corpus of books? (source: Google Ngram Viewer )