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

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

Effect of floating row covers on tomato and Romaine lettuce

Creator:: Abbes, Ahmed
Resource Type:: Masters Thesis
Full Text:: appreciation to my advisor, Dr. N. S. Mansour and my co-adviser Dr. D. D. Hemphill for their enthusiastic

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

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

Stability of soil structure for water movement in an aridisol

Creator:: Ali, Safdar
Abstract:: Lack of stability of soil aggregates for water movement is a major problem in arid soils due to low organic matter and higher sodium contents. Soil amendments for improving stability of structure and increasing infiltration of water are essential to solve water management problems in these areas. Different rates of...
Resource Type:: Masters Thesis
Full Text:: . Delbert D. Hemphill for serving on my graduate committee. I would like also to thank Dr. Clinton C

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

Table Beet Yield and Boron Deficiency as Influenced by Lime, Nitrogen, and Boron

Creator:: Hemphill, Delbert D. Jr, Weber, Michael S., and Jackson, T. L. (Thomas Lloyd), 1922-
Abstract:: Yield, occurrence of root canker (B deficiency), and leaf nutrient concentrations of the Morse strain of ‘Detroit Dark Red’ table beet (Beta vulgaris L.) as influenced by combinations of lime and N, B, and P fertilizers were evaluated in three studies. Greatest total yields and most favorable distribution of root...
Resource Type:: Article
Full Text:: as Influenced by Lime, Nitrogen, and Boron' DELBERT D. HEMPHILL, JR., MICHAEL s. WEBER, AND THOMAS

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

Lime Fertilizer Interactions Affecting Vegetable Crop Production

Creator:: Hemphill, Delbert D. and Jackson, T. L. (Thomas Lloyd), 1922-
Abstract:: Experiments at the North Willamette Experiment Station have evaluated response of vegetables to lime and other fertilizers since 1970. The soils are moderately acid (pH 5.4 to 5.6), high in P, and better drained than most soils used for vegetable crop production in western Oregon. Typical soil acidity problems such...
Resource Type:: Technical Report
Full Text:: Production' Delbert D. Hemphill, Jr., and T. L. Jackson2 ABSTRACT Experiments at the North Willamette

ScholarsArchive@OSU

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

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

Effect of floating row covers on tomato and Romaine lettuce

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

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

Stability of soil structure for water movement in an aridisol

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

Table Beet Yield and Boron Deficiency as Influenced by Lime, Nitrogen, and Boron

Seedless table grapes for the Willamette Valley

Lime Fertilizer Interactions Affecting Vegetable Crop Production

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