Sediment, phosphorus and nitrogen in storm runoff from some Willamette Valley croplands
By: by F. William Simmons.
Published: 1980
Language: eng
Number of pages: 134
Subjects: Soil erosion -- Oregon -- Willamette River Valley.
Notes: Typescript (photocopy).

Thesis (M.S.)--Oregon State University, 1981.

Includes bibliography.