Index Catalog // ScholarsArchive@OSU

Forage production and utilization in relation to deer browsing of Douglas-fir seedlings in the Tillamook Burn, Oregon

Creator:: Crouch, Glenn Leroy, 1929-
Abstract:: The main objective of this investigation was to evaluate relationships between the production and utilization of forage and deer browsing of hand-planted Douglas-fir seedlings. A secondary purpose was to study some effects of selected physical and biological site factors on the survival and growth of fir seedlings. Field work was...
Resource Type:: Dissertation

The seasonal yield, quality, and utilization of Trifolium subterraneum in mixture with festuca arundinacea and Lolium perenne in western Oregon

Creator:: Sanders, Kenneth D. (Kenneth Dwayne), 1940-
Abstract:: In 1959, a large scale grazing study in western Oregon was initiated to compare the value of perennial ryegrass (Lolium perenne L.) with subclover (Trifolium subterraneum L.) and tall fescue (Festuca arundinacea Schreb.) with subclover, and to evaluate common use grazing on them. The present investigation was undertaken to determine...
Resource Type:: Masters Thesis
Full Text:: invaluable guidance and encouragernent given by rny major professor, Dr. Donald 'ilrl. Hedrick. A word of

Use of oak woodlands (Quercus garryana) for farm forestry and grazing in the Willamette Valley

Creator:: Hall, Frederick C.
Resource Type:: Masters Thesis
Full Text:: in the collection and malysis of data. Finally, tbi s student is deeply indebted to Donald w

Evaluation of species composition by four methods on two perennial grass pastures (Festuca arundinacae Schreb. and Lolium perenne L.) grazed lightly and heavily in western Oregon

Creator:: Pessot Zorich, Rafael
Abstract:: The present study was undertaken to evaluate the seasonal botanical composition of two grass pastures, tall fescue (Festuca arundinacea Schreb.) and perennial ryegrass (Lolium perenne L.). Botanical composition was determined by four methods: dry-weight-rank, weight-estimate, hand separation, and the constituent differential, with cattle and sheep grazing at two intensities. The...
Resource Type:: Masters Thesis
Full Text:: by my major professor, Dr. Donald W. Hedrick. Thanks are extended to Dr. Charles E. Poulton for

Composition of and production from an improved and an unimproved hill pasture

Creator:: Livingston, Kenneth Hubert
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGMENT The author is deeply indebted to Dr. D. · .. Hedrick, Assistant Professor of Range Management

Clipping treatments on tall fescue

Creator:: Hedrick, Donald W.
Abstract:: One of the problems facing sheepmen on the nonirrigated pastures of western Oregon, particularly in the foothills surrounding the Willamette Valley, is the lack of succulent green pasture growth during the late summer breeding season. If early spring lambs are being produced, ewes must be bred in August and September...
Resource Type:: Technical Report
Full Text:: Corvaliis Clipping Treatments on Tall Fescue D. W. Hedrick* One of the problems facing sheepmen on the

Overstory-understory grass seedings on sagebrush-bunchgrass range

Creator:: Hedrick, Donald W.
Abstract:: "Crested wheatgrass, beardless wheatgrass, and big bluegrass were seeded as overstory grasses. Streambank wheatgrass, canby bluegrass, bulbous bluegrass, and Ladak alfalfa were seeded as companion species. Pure and mixed stands were seeded on sagebrush-bunchgrass range in eastern Oregon to compare yield and competitiveness. The grasses were planted in 1956, 1957,...
Resource Type:: Technical Report
Full Text:: -BUNCHGRASS RANGE Agricultural Experiment Station Oregon State University Corvallis AUTHORS: D. W. Hedrick

Influence of range improvement practices on composition, production, and utilization of Artemisia deer winter range in central Oregon

Creator:: Urness, Philip J.
Abstract:: Recent emphasis on range improvement of sagebrush-bunch-grass types in Oregon has underscored the need for better understanding of their importance to deer winter range management. The objectives of this study were to evaluate the impact of various sagebrush control practices on the composition, production, and utilization of deer forage plants...
Resource Type:: Dissertation
Full Text:: extended to Dr. D. W. Hedrick who, as major profes- sor, has been exceedingly helpful in directing my

Seasonal cattle and sheep diets on Festuca arundinacea-Trifolium subterraneum and Lolium perenne-Trifolium subterraneum pastures in western Oregon

Creator:: Bedell, Thomas E.
Abstract:: Sheep and cattle dietary preferences were determined on tall fescue-subclover ( Festuca arundinacea-Trifolium subterraneum) and perennial ryegrass-subclover (Lolium perenne-Trifoliuni subterraneum) pastures in western Oregon during the spring and summer periods of 1964 and 1965. Esophageal-fistulated Willamette ewes and Hereford and Hereford-Angus yearling cattle were grazed separately on each pasture mixture...
Resource Type:: Dissertation
Full Text:: presented January 19, 1966 Typed by Marcia Ten Eyck bT ACKNOWLEDGEMENT Dr. D. W. Hedrick has been

The influence of selected environmental factors on diuron toxicity to winter wheat

Creator:: Homesley, Wylie Buress
Abstract:: Previous work has shown that diuron (3-(3, 4- dichlorophenyl)-1, 1-dimethylurea) is less toxic to fall-planted wheat than to wheat planted in the spring. Diuron has been a significant factor in increasing yields of winter wheat grown in Oregon's Willamette Valley. The influence of several selected environmental factors on diuron toxicity...
Resource Type:: Dissertation
Full Text:: . Appleby, Donald. W. Hedrick and Roger G. Peterson, I express thanks for personal interest in correcting

ScholarsArchive@OSU

Forage production and utilization in relation to deer browsing of Douglas-fir seedlings in the Tillamook Burn, Oregon

The seasonal yield, quality, and utilization of Trifolium subterraneum in mixture with festuca arundinacea and Lolium perenne in western Oregon

Use of oak woodlands (Quercus garryana) for farm forestry and grazing in the Willamette Valley

Evaluation of species composition by four methods on two perennial grass pastures (Festuca arundinacae Schreb. and Lolium perenne L.) grazed lightly and heavily in western Oregon

Composition of and production from an improved and an unimproved hill pasture

Clipping treatments on tall fescue

Overstory-understory grass seedings on sagebrush-bunchgrass range

Influence of range improvement practices on composition, production, and utilization of Artemisia deer winter range in central Oregon

Seasonal cattle and sheep diets on Festuca arundinacea-Trifolium subterraneum and Lolium perenne-Trifolium subterraneum pastures in western Oregon

The influence of selected environmental factors on diuron toxicity to winter wheat

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