Long-term effects of tillage, nitrogen, and rainfall on winter wheat yields
By: by Kelli Marie Camara.
Published: 1999
Language: eng
Number of pages: 233
Subjects: Winter wheat -- Yields -- Oregon.; Nitrogen fertilizers -- Oregon.; Tillage -- Oregon.
Notes: Typescript (photocopy).

Thesis (M.S.)--Oregon State University, 2000.

Includes bibliographical references (leaves 69-82).