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Corn (Zea mays L.) yields as influenced by nitrogen, row spacing and intercropped ryegrass (Lolium multiflorum)

Creator:: Wivutvongvana, Paibool
Abstract:: Two field corn experiments were conducted on a Woodburn silt loam soil near Corvallis, Oregon, in 1972-1973 to investigate the effects of certain soil management practices on the yield and performance of corn (Zea mays L.). Experiment I involved variables that included three corn row spacings (76, 114, and 152...
Resource Type:: Masters Thesis
Full Text:: (LOLIUM MULTIFLORUM) Abstract approved: Redacted for privacy Dr. IVL rray D. Dawson Two field corn

Response of field corn to irrigation, plant population, and nitrogen on soils of the Willamette catena

Creator:: Andersen, Jimmie Lee
Abstract:: The purpose of this study was to make a preliminary investigation of the productivity of some of the soils within the Willamette catena under different systems of soil management. The study was carried out at four experimental sites near Corvallis, Oregon, during the 1962 growing season. The soil at each...
Resource Type:: Masters Thesis
Full Text:: continued suggestions and heIp. In addition, Drs, H. B. Cheney, T" L. Jackson, and D. D" Evans of the

Effects of sulfur on yield and plant sulfur of subterranean clover

Creator:: Loqa, Harith Jabbouri, 1937-
Abstract:: Subterranean clover was grown in nutrient solution and S deficient Steiwer soil in the greenhouse. Plants were harvested at 15, 30, 45 and 60 days after emergence. When subterranean clover was grown in nutrient solution significant yield response to each increment of added sulfate (SO₄-S) occurred in 15, 30, 45...
Resource Type:: Masters Thesis
Full Text:: Privacy Dr. D. Dawson Subterranean clover was grown in nutrient solution and S deficient Steiwer soil

The effects of plant population and nitrogen on sweet corn yields

Creator:: Moss, Joe Dick
Abstract:: The response of sweet corn (Zea mays L. var. rugosa cultivar Jubilee) to 12 populations and four nitrogen rates was studied in a field experiment. Populations ranged from 43, 904 to 329,800 plants/ha with nitrogen levels ranging from 0 to 224 Kg/ha. A systematic spacing design was used. Plant height,...
Resource Type:: Masters Thesis
Full Text:: . Recognition is also given to Dr. Michael H. Chaplin, Dr. William W. Chilcote, and Dr. Murray D

Geology of the Birch Creek area, Dayville quadrangle, Oregon

Creator:: Dawson, John William
Resource Type:: Masters Thesis
Full Text:: , Oregon AN ABSTRACT OF TI TIOESIS OF John William Dawson for the M. S. Date Thesis is presented

Hull -Oakes Lumber Company's Steam-Powered Sawmill : A Case Study in Industrial Archaeology

Creator:: Wisner, George B.
Abstract:: By examining the combined written, ethnographic and physical evidence of a surviving steam-powered sawmill in the Douglas-fir region of the Pacific Northwest, this thesis seeks to supply new insights into the operation and adaptability of antiquated machinery during a period of rapid social and technological change and to develop a...
Resource Type:: Masters Thesis
Full Text:: Sawmills Develop 14 2.3 Milling Technology Evolves 16 3. GETTING STARTED AND THE DAWSON EXPERIENCE 25

Management effects on the nitrogen, phosphorus, and sulphur status of grass-legume pastures

Creator:: Impithuksa, Viroch
Abstract:: These studies were initiated to investigate the influence of previous superphosphate fertilizer practices and grazing stock history on nitrogen, phosphorus and sulphur status in soils from grass-legume pastures. Four Western Oregon soil series, Dixonville, Demint, Winema and Josephine, were included in the study. Laboratory experiments and greenhouse trials were conducted...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy M. D. Dawson These studies were initiated to investigate the influence of

Molybdenum status of subclover (Trifolium subterraneum) as affected by Mo and S fertilization and soil type

Creator:: Jarrell, Wesley M.
Abstract:: Field studies designed to study residual effects from fertilizer molybdenum were initiated in September 1971 on established grass-clover pastures at ten sites in Western Oregon. Treatments were 0.0 and 1.12 kg molybdenum /ha on plots receiving 0-35-0-20S fertilizer (elemental sulfur-S) and 0.0, 0.56, 1.12 and 2.24 kg molybdenum /ha on...
Resource Type:: Masters Thesis
Full Text:: appreciation to Dr. M. D, Dawson for his guidance, interest and encouragement throughout this work; Drs. V

Molybdenum status of selected Oregon soils and subterranean clover response to molybdate

Creator:: Ross, Erric Virgil
Abstract:: Studies were undertaken on the Steiwer, Hazelair, Hedden, Dixonville, Knappa, Haines, Ladd, Wingville and Powder soil series plus three additional unnamed soils from western Oregon, in an effort to determine their molybdenum status and to evaluate the use of the anion exchange resin method as a means of assaying available...
Resource Type:: Masters Thesis
Full Text:: approved: M. D. Dawson Studies were undertaken on the Steiwer, Hazelair, Hedden, Dixonville, Knappa

The effect of soil temperature and soil moisture stress on S-urea mineralization and ryegrass yield

Creator:: Akratanakul, Wanee
Abstract:: A growth chamber experiment was conducted to determine the rate of S-urea mineralization and effect of S-urea on the yield of ryegrass (Lolium multiflorum) grown in Steiwer soil as influenced by soil temperature (60, 75, and 90° F) and soil moisture stress (0. 10, 0.35, and 2.50 bars). Plant yield,...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Dr. M. D. Dawson A growth chamber experiment was conducted to determine

ScholarsArchive@OSU

Corn (Zea mays L.) yields as influenced by nitrogen, row spacing and intercropped ryegrass (Lolium multiflorum)

Response of field corn to irrigation, plant population, and nitrogen on soils of the Willamette catena

Effects of sulfur on yield and plant sulfur of subterranean clover

The effects of plant population and nitrogen on sweet corn yields

Geology of the Birch Creek area, Dayville quadrangle, Oregon

Hull -Oakes Lumber Company's Steam-Powered Sawmill : A Case Study in Industrial Archaeology

Management effects on the nitrogen, phosphorus, and sulphur status of grass-legume pastures

Molybdenum status of subclover (Trifolium subterraneum) as affected by Mo and S fertilization and soil type

Molybdenum status of selected Oregon soils and subterranean clover response to molybdate

The effect of soil temperature and soil moisture stress on S-urea mineralization and ryegrass yield

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