Index Catalog // ScholarsArchive@OSU

A comparison of vegetation suppression and sod-seeding methods using perennial ryegrass in renovation of non-irrigated permament pastures in western Oregon

Creator:: Neumeister, John H.
Abstract:: Sod-seeding techniques offer graziers a convenient way to introduce superior grass cultivars into underproductive permanent pastures. Production loss and erosion are minimized. In conjunction with improved grazing management and fertilization, renovation can significantly improve yield and quality of pastures. Existent vegetation must be suppressed prior to introducing new cultivars. This...
Resource Type:: Masters Thesis
Full Text:: Permanent Pastures in Western Oregon Abstract approved: Larry B 11 Sod-seeding techniques offer graziers

Pasture renovation with herbicide suppression of weeds and no-till seeding of orchardgrass

Creator:: Fitzsimmons, James P.
Abstract:: No-till pasture renovation can increase the quality and forage yield of underproductive pastures. Decreased erosion, lower costs, and less lost grazing time are advantages of no-till renovation compared to conventional renovation. Unwanted vegetation is first controlled with herbicides to decrease competition for introduced orchardgrass. Two field trials were conducted using...
Resource Type:: Masters Thesis
Full Text:: major professor Larry Burrill, for his support and patience in planning, harvesting, and writing this

A study of methods of parental evaluation using testers to predict subsequent progeny performance in winter wheat (Triticum aestivum L.)

Creator:: Alexander, William Larry
Abstract:: The major objective of this study was to determine why certain winter wheat cultivars, when hybridized, will produce a greater proportion of desirable plants in subsequent, segregating generations. Three winter wheat parents were chosen as the experimental material, based on their known performance as parents. Yamhill and Pullman Selection 101...
Resource Type:: Dissertation
Full Text:: OF William Larry Alexander for the degree of Doctor of Philosophy in Crop Science presented on

Sweet corn (Zea mays L.) production in a white clover (Trifolium repens L.) living mulch : the establishment year

Creator:: Cooper, Alan S.
Abstract:: Oregon sweet corn growers face high fertilizer, fuel and weed control costs; soil compaction, erosion, organic matter and nutrient depletion; and difficult equipment operations in muddy fields. An alternative production system might ease some of these problems. Testing was begun to evaluate a living-mulch cropping system for sweet corn (Zea...
Resource Type:: Masters Thesis
Full Text:: Abstract approved:. Redacted for Privacy (/ Larry C. Burrill Oregon sweet corn growers face high

Sweet corn (Zea mays) production in a white clover (Trifolium repens) living mulch : the second year

Creator:: Peterman, Mark K.
Abstract:: Soil-related problems common to Oregon farmers are erosion, compaction, organic matter depletion, and nutrient loss. High costs of fertilizer, fuel, and weed control are additional management problems. Growing a secondary crop as a living mulch with a primary crop may ease some of these problems. Sweet corn production in Oregon...
Resource Type:: Masters Thesis
Full Text:: for Privacy Larry C4/Burrill Soil-related problems common to Oregon farmers are erosion, compaction

Persistence and accumulation of clopyralid (3,6-dichloropicolinic acid) in soil

Creator:: Tanphiphat, Karin
Abstract:: Field studies were started at Hyslop Farm, Corvallis, Oregon in 1984 to determine the soil persistence of the herbicide clopyralid (3,6-dichloropicolinic acid) under cropping situations. The herbicide was sprayed on bare soil at the proposed use rate of 0.14 kg/ha in the spring and on the same plots at a...
Resource Type:: Masters Thesis
Full Text:: -dichloropicolinic acid) in Soil Abstract approved: Redacted for Privacy Larry C. Burrill Field studies were

Cuphea wrightii tolerance to selected herbicides

Creator:: Cherif, Raouf
Resource Type:: Masters Thesis
Full Text:: Privacy v Larry C. Burrill The medium-chain triglyceride (MCT) oils, capric, caprylic, and lauric are

Response of Cuscuta campestris and Cuscuta indecora to glyphosate applied after attachment to alfalfa (Medicago sativa)

Creator:: Fessehaie, Rezene
Abstract:: The response to glyphosate [N-(phosphonomethyl) glycine] of two dodder species Cuscuta campestris Yuncker (field dodder) and Cuscuta indecora Chiosy (largeseed dodder) parasitizing alfalfa (Medicago sativa L.) was compared. In the absence of glyphosate, alfalfa was killed or severely injured by parasitism from uncontrolled dodder. Results of field experiments in which...
Resource Type:: Masters Thesis
Full Text:: (Medicago sativa). Abstract approved: Redacted for privacy Redacted for privacy Larry C Burrill jtan H

An evaluation of field methods of disease assessment in wheat (Triticum aestivum) for stripe rust (Puccinia striiformis)

Creator:: Mork, Colleen C.
Abstract:: The need to identify a simple but accurate method of stripe rust assessment that best predicts host response prompted this investigation. The study was divided into two plot types, one protected with the fungicide Bayleton and the other unprotected. Ten winter wheat cultivars were used and evaluated. Grain yield, test...
Resource Type:: Masters Thesis
Full Text:: and write-up of this thesis. In addition, I would like to thank Dr. Larry L. Boersma for being a

Integrating real-time weather data with dynamic crop development models

Creator:: Donaldson, William S.
Abstract:: Crop development models are commonly used in research. However, their use as crop management tools for growers is rare. Decision support systems (DSS), which combine crop models with expert systems, are being developed to provide management assistance to growers. Researchers at Oregon State University are in the process of developing...
Resource Type:: Masters Thesis
Full Text:: . Glenn Klein and Dr. Larry Lev for their assistance and for being on my committee. Many thanks to

ScholarsArchive@OSU

A comparison of vegetation suppression and sod-seeding methods using perennial ryegrass in renovation of non-irrigated permament pastures in western Oregon

Pasture renovation with herbicide suppression of weeds and no-till seeding of orchardgrass

A study of methods of parental evaluation using testers to predict subsequent progeny performance in winter wheat (Triticum aestivum L.)

Sweet corn (Zea mays L.) production in a white clover (Trifolium repens L.) living mulch : the establishment year

Sweet corn (Zea mays) production in a white clover (Trifolium repens) living mulch : the second year

Persistence and accumulation of clopyralid (3,6-dichloropicolinic acid) in soil

Cuphea wrightii tolerance to selected herbicides

Response of Cuscuta campestris and Cuscuta indecora to glyphosate applied after attachment to alfalfa (Medicago sativa)

An evaluation of field methods of disease assessment in wheat (Triticum aestivum) for stripe rust (Puccinia striiformis)

Integrating real-time weather data with dynamic crop development models

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