Evergreen blackberry potassium and nitrogen fertilization trial
Subtitle: North Willamette Experiment Station
By: [Esther Nelson and Lloyd W. Martin].
Contributors: Martin, Lloyd W.; Oregon State University. Agricultural Experiment Station.; North Willamette Agricultural Experiment Station.
Series: Special report / Agricultural Experiment Station, Oregon State University -- 774.; Special report (Oregon State University. Agricultural Experiment Station) -- 774.
Publisher: Agricultural Experiment Station, Oregon State University
Published: 1986
Place of publication: Corvallis, Or
Language: eng
Subjects: Blackberries -- Fertilizers.
Notes: Title from cover.

"June 1986."

Also issued online.