Commercial fertilizers
By: by R.H. Robinson.
Contributors: Oregon Agricultural College. Experiment Station.
Series: Station circular / Oregon Agricultural College, Experiment Station -- 31.; Station circular (Oregon Agricultural College. Experiment Station) -- 31.
Publisher: Oregon Agricultural College, Experiment Station
Published: 1922
Place of publication: [Corvallis, Or.]
Language: eng
Number of pages: 16
Subjects: Fertilizers -- Oregon.
Notes: Cover title.