Tile drainage

https://www.wikidata.org/wiki/Q56875480

Field Hierarchy

Parent
Biology 36.7M papers	Geography 13.4M papers	Geology 10.6M papers	Environmental science 9M papers
Ecology 8.3M papers	History 8.1M papers	Archaeology 7M papers	Agriculture 1.1M papers
Soil science 822k papers		Soil water 799k papers
Current
Tile drainage 2,184 papers
Child
Weeping tile 0 papers

Trends

Notes

History