Interaction of seed source, competition and fertility on planted Douglas-fir (Pseudotstuga menziesii [Mirb.] Franco)
By: by Brian Edward Roth.
Published: 1994
Language: eng
Number of pages: 74
Subjects: Douglas fir -- Weed control.; Douglas fir -- Seeds.; Douglas fir -- Fertilizers.
Notes: Typescript (photocopy)

Thesis (M.S.)--Oregon State University, 1994.

Includes bibliographical references.