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Filtering by: Subject Invasive plants -- Ecology -- Oregon Degree Name Doctor of Philosophy (Ph.D.) Subject Forage plants -- Oregon

Vegetation changes of communities containing medusahead (Taeniatherum asperum (Sim.) Nevski) following herbicide, grazing, and mowing treatments

Creator:

Turner, Robert Bruce

Abstract:

Studies were conducted from 1962 to 1966 to investigate the effectiveness of several practices in manipulating medusahead (Taeniatherum asperum (Sim. ) Nevski) infested and/or dominated ecosystems by releasing competition in favor of perennial grasses. Several herbicide treatments were evaluated for selective control of medusahead and cheatgrass (Bromus tectorum L. )...

Resource Type:

Dissertation

Full Text:

River hills of eastern Oregon. On foothill range in western Oregon, sheep grazing and mow- ing
Forage production and utilization in a mixed conifer forest in the Wallowa Mountain foothills

Creator:

Young, James A. (James Albert), 1937-

Abstract:

This investigation was undertaken to characterize and evaluate the forage production and utilization of the successional vegetation of the mixed conifer forest. Field studies were carried out during the summers of 1962 through 1964 at the Eastern Oregon Experiment Station Hall Ranch which is located 12 miles southeast of Union,...

Resource Type:

Dissertation

Full Text:

Oregon Experiment Station Hall Ranch which is located 12 miles southeast of Union, Oregon. The mixed