Phosphorus requirement of red hill soils as shown by greenhouse and chemical tests
By: by Lewis Harrigfeld Williams.
Published: 1953
Language: eng
Number of pages: 51
Subjects: Soils -- Oregon.; Soils -- Analysis.; Phosphorus.
Notes: Typescript.

Mounted photographs.

Thesis (M.S.)--Oregon State College, 1953.

Bibliography: leaves 48-51.