Summer fallow

https://www.wikidata.org/wiki/Q7637480

Field Hierarchy

Parent
Biology 36M papers	Geography 13.2M papers	Ecology 8.1M papers	History 8M papers
Archaeology 6.9M papers	Agriculture 1M papers	Cropping 37.6k papers
Current
Summer fallow 1,346 papers
Child
Three-field system 0 papers

Trends

Notes

History