Browsing Extension Service and Agricultural Experiment Station by Author "Jackman, E. R. (Edwin Russell), 1894-1967"

Now showing items 1-3 of 3

Conservation on the range

Oregon State College. Federal Cooperative Extension Service; Jackman, E. R. (Edwin Russell), 1894-1967 (Corvallis, OR : Federal Cooperative Extension Service, Oregon State College, 1954-08)
Grain hay and pasture in the Columbia Basin

Oregon State College. Federal Cooperative Extension Service; Jackman, E. R. (Edwin Russell), 1894-1967; Oveson, M. M. (Merrill Mahonri), 1900- (Corvallis, Or. : Federal Cooperative Extension Service, Oregon State College, 1955-05)
Grass as a conservation tool

Oregon State College. Federal Cooperative Extension Service; Jackman, E. R. (Edwin Russell), 1894-1967 (Corvallis, Or. : Federal Cooperative Extension Service, Oregon State College, 1957-06)