agronomy vs crofting

agronomy

noun
  • The science of utilizing plants, animals and soils for food, fuel, feed, and fiber and more. To do this effectively and sustainably, agronomy encompasses work in the areas of plant genetics, plant physiology, meteorology, animal sciences and soil science. 

crofting

noun
  • A form of land tenure and small-scale food production, unique to the Highlands and islands of Scotland, in which individual crofts are established on the better land while a large area of poor-quality hill ground is shared by all the crofters of the township for grazing. 

  • The process of exposing linen to the sun, on the grass, in the process of bleaching. 

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