Index Catalog // ScholarsArchive@OSU

Irrigation and plant density effects on head rot and yield of broccoli

Creator:: Ludy, Robin L.
Abstract:: Effects of amount of applied water and frequency of irrigation on head rot and yield of three broccoli cultivars were evaluated in 1987 and 1988. Two irrigation frequencies were established with a line-source sprinkler system for 5.5 weeks during heading. The low-frequency experiment was watered once per week and the...
Resource Type:: Masters Thesis
Full Text:: Density Effects on Head Rot and Yield of Broccoli Abstract approved: ... . , . Delbert D

Influence of nitrogen form ratio and calcium on greenhouse and field performance of watermelon

Creator:: Lamb, Michael J.
Abstract:: Watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai var. Crimson Sweet) was seeded in a commercial peat mix in multicell containers (72 cells-tray⁻¹, 40 cm³-cell⁻¹) in July 1989 and April 1990. In 1989, the medium was amended with CaC0₃ at 10% w:v. In 1990, no CaC0₃ amendment was made. Watermelon seedling...
Resource Type:: Masters Thesis
Full Text:: . Clough Delbert D. Hemphil^ Watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai var. Crimson

Effect of a broccoli green manure, soil solarization, and isolates of Verticillium dahliae on Verticillium wilt of agronomic and nursery crops

Creator:: Berlanger, Ingrid E.
Abstract:: Green manures, soil solarization, and long rotations with crops not susceptible to Verticillium wilt are among the disease management tactics currently under investigation as alternatives to chemical fumigation of soil. The effect of a broccoli green manure on soil microsclerotial populations of three isolates of Verticillium dahliae and on Verticillium...
Resource Type:: Masters Thesis
Full Text:: . Thanks also to Delbert Hemphill and John Ruben for serving on my committee, to Blaine Baker for

Integration of conservation tilage and cover crops in broccoli production systems of the Pacific Northwest

Creator:: O'Brien, Timothy John
Abstract:: Field and greenhouse experiments were conducted in 1996 and 1997 to evaluate the effects of integrating conservation tillage and cover cropping on broccoli production as well as agroecological parameters. A field experiment was conducted during 1996-97 at the Oregon State University Horticulture Research farm near Corvallis, OR. The specific objectives...
Resource Type:: Masters Thesis
Full Text:: to extend thanks to my graduate committee members: Drs. Carol Mallory-Smith and Delbert Hemphill

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Creator:: McMorran, Jeffrey P.
Resource Type:: Dissertation
Full Text:: , Russell Ingham, and Delbert Hemphill contributed in unique ways to the completion of this research

Seedless table grapes for the Willamette Valley

Creator:: Hemphill, Delbert D., Sheets, W. A. (Willis Arden), and Martin, Lloyd W.
Abstract:: Published April 1992. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Willamette Valley Delbert D. Hemphill Jr., W.A. Sheets, and Lloyd W. Martin Agricultural Experiment Station

Vegetable research at the North Willamette Agricultural Experiment Station, 1997-1998

Creator:: Hemphill, Delbert D., Jr. and Oregon State University. Agricultural Experiment Station
Abstract:: We have conducted a full-time program of vegetable crop research at the North Willamette Research and Extension Center (formerly the North Willamette Experiment Station) since 1976. The Center, a branch of both Oregon State University's Agricultural Experiment Station and its Extension Service, is just north of Aurora, a historic farming...
Resource Type:: Technical Report
Full Text:: Delbert D. Hemphill, Jr. Professor of Horticulture Oregon State University North Willamette Research and

Red clover (Trifolium pratense)

Creator:: Sattell, Robert, Dick, Richard, Hemphill, Delbert D., McGrath, Daniel M. (Daniel Morton), and Oregon State University. Extension Service
Abstract:: Red clover is used successfully in Oregon as a fall-planted cover crop and green manure in rotations with vegetable crops.
Resource Type:: Technical Report
Full Text:: pratense) R. Sattell, R. Dick, D. Hemphill, and D. McGrath l s Red clover is an herbaceous perennial or

Subterranean clovers (Trifolium subterraneum)

Creator:: Sattell, Robert, Dick, Richard, Hemphill, Delbert D., McGrath, Daniel M. (Daniel Morton), and Oregon State University. Extension Service
Abstract:: Subclovers are used for forage and hay and have been used successfully in Oregon as fall-planted and relay interplanted cover crops in annual rotations. They are capable of accumulating substantial amounts of N, a portion of which is available to the following crop. Rapid growth suppresses weeds in spring.
Resource Type:: Technical Report
Full Text:: CLOVERS (Trifolium subterraneum) R. Sattell, R. Dick, D. Hemphill, and D. McGrath Subterranean clovers

Crimson clover (Trifolium incarnatum L.)

Creator:: Sattell, Robert, Dick, Richard, Hemphill, Delbert D., Luna, John, McGrath, Daniel M. (Daniel Morton), and Oregon State University. Extension Service
Abstract:: Crimson clover may be used as a cover crop, green manure, pasture, or hay. It often is used as a winter annual cover crop in annual rotations. It has been used successfully in reduced-tillage farming systems, and in orchards and vineyards where it can be managed to reseed itself.
Resource Type:: Technical Report
Full Text:: (Trifolium incarnatum L.) R. Sattell, R. Dick, D. Hemphill, J. Luna, and D. McGrath Crimson clover is an

ScholarsArchive@OSU

Irrigation and plant density effects on head rot and yield of broccoli

Influence of nitrogen form ratio and calcium on greenhouse and field performance of watermelon

Effect of a broccoli green manure, soil solarization, and isolates of Verticillium dahliae on Verticillium wilt of agronomic and nursery crops

Integration of conservation tilage and cover crops in broccoli production systems of the Pacific Northwest

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Seedless table grapes for the Willamette Valley

Vegetable research at the North Willamette Agricultural Experiment Station, 1997-1998

Red clover (Trifolium pratense)

Subterranean clovers (Trifolium subterraneum)

Crimson clover (Trifolium incarnatum L.)

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