Fertilizer nitrogen use efficiency by winter wheat in the Willamette Valley
By: by Roger Keith Kjelgren.
Published: 1984
Language: eng
Number of pages: 83
Subjects: Wheat -- Willamette River Valley.; Nitrogen fertilizers.
Notes: Typescript (photocopy).

Thesis (M.S.)--Oregon State University, 1985.

Bibliography: leaves 61-65.