Long-term management effects on soil productivity and crop yield in semi-arid regions of Eastern Oregon
By: Paul E. Rasmussen, Harold P. Collins, and Richard W. Smiley ; Columbia Basin Agricultural Research Center, Pendleton, Oregon.
Contributors: Collins, Harold P.; Smiley, Richard W.; Oregon State University. Agricultural Experiment Station.; United States. Agricultural Research Service.; Columbia Basin Agricultural Research Center.
Series: Station bulletin / Agricultural Experiment Station, Oregon State University -- 675.; Station bulletin (Oregon State University. Agricultural Experiment Station) -- 675.
Publisher: Agricultural Experiment Station, Oregon State University; Agricultural Research Service, USDA
Published: 1989
Place of publication: [Corvallis, Or.]; [Washington, D.C.]
Language: eng
Number of pages: 57
Subjects: Soil productivity -- Oregon, Eastern -- Statistics.; Crop yields -- Oregon, Eastern -- Statistics.
Notes: Cover title.

"November 1989."

Includes bibliographical references (p. 52-53).