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The effect of preplant nitrogen fertilization and soil temperature on biological nitrogen fixation and yield of alfalfa (Medicago sativa L.)

Creator:: Shuler, Philip E.
Abstract:: The usefulness of preplant nitrogen (N) in establishing alfalfa in colder production areas has not been well characterized. This study was conducted to determine the effect of preplant N and soil temperature on yield, percent N derived from biological nitrogen fixation (PBNF), and shoot N concentration in alfalfa (Medicago sativa...
Resource Type:: Dissertation

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Creator:: Fernando, M.F. Sydney W.
Resource Type:: Dissertation
Full Text:: committee Dr. B. P. Warkentin, Dr. George Clough, Dr. D. B. Hannaway, Dr. Rick Boydston, Dr. J. P. McMorran

Fallow water retention and wheat growth as affected by tillage method and surface soil compaction

Creator:: Schillinger, William F.
Abstract:: No-tillage winter wheat (Triticum aestivum L.) grown in a wheat-fallow cropping system has consistently produced lower grain yields than conventionally tilled soils in the semiarid Pacific Northwest. A 2-year study was conducted in a long-term tillage trial at Moro, OR to determine factors responsible for differences in wheat growth and...
Resource Type:: Dissertation
Full Text:: stubble mulch fallow (Good and Smika, 1978; Wicks and Smika, 1973; Fenster and Peterson, 1979; Smika

Physiological responses of creeping red fescue to stubble management and plant growth regulators

Creator:: Meints, Paul David
Abstract:: Legislation to reduce open field burning in grass seed fields within the Willamette valley of western Oregon changed established production practices. In the creeping grasses such as Kentucky bluegrass (Poa pratensis L.) and creeping red fescue (Festuca rubra L.) non-thermal management resulted in reduced yield. Studies were conducted to examine...
Resource Type:: Dissertation
Full Text:: Kentucky bluegrass (Canode and Perkins, 1977; Lindsey and Peterson, 1964). A number of studies suggest

Cytology, inbreeding depression, and heterosis of Cuphea Lanceolata Ait

Creator:: Ali, Md. Shahjahan
Resource Type:: Dissertation
Full Text:: . silenoides, (b) C. lanceolata f typica, (c) C. lanceolata f silenoides x C. lanceolata f typica. 18 2

Field microplot estimates of soil N mineralization for manured and non-manured soils

Creator:: Sullivan, Dan M., Cogger, Craig G., Bary, Andrew I., and Myhre, Elizabeth
Abstract:: Credits for available N from past manure applications are often used in nutrient management planning. However, it is difficult to verify the accuracy of these credits. The major objective of this study was to estimate long-term effects of manure application on soil N mineralization. Specific objectives were to: 1) estimate...
Resource Type:: Conference Proceeding and Presentation
Full Text:: ., B. Rouppet, D.G. Westfall and G.A. Peterson. 1997. Evaluation of an in situ net soil nitrogen

Water management effects on birdsfoot trefoil seed production

Creator:: García-Díaz, Carlos Alberto
Abstract:: There is no information available on water management of birdsfoot trefoil grown for seed. Information is also not available describing how to minimize seed losses due to shattering in order to obtain consistently high birdsfoot trefoil seed yields. The objectives of this research are to: (i) quantify crop water use,...
Resource Type:: Dissertation
Full Text:: -1.4 MPa, respectively (Peterson et al., 1992). Birdsfoot trefoil herbage production in Montana does

Cover crops and biochemical functional diversity in relation to nitrogen availability in soil

Creator:: Burket, John Zimmerman
Abstract:: Nitrogen availability in agricultural soils from fertilizer, plant residue inputs, and soil organic matter has important implications beyond crop yield. Legume winter cover crops and one fourth the recommended N rate on sweet corn resulted in yields equivalent to those at the recommended rate in the Willamette Valley of western...
Resource Type:: Dissertation
Full Text:: measured variables, and (b) principal components analysis of Willamette soils based on all measured

Mapping of quantitative trait loci for malting quality in a winter X spring barley (Hordeum vulgare, L.) cross

Creator:: Oziel, Adeline M.
Abstract:: Making quality and winterhardiness in barley are "ultimate" phenotypes composed of component, quantitatively inherited traits. A 69-point genome map of the seven chromosomes of barley was used, in conjunction with multi-environment phenotypes for grain yield and malting quality, to determine the chromosome locations of quantitative trait loci (QTLs). A combined...
Resource Type:: Masters Thesis
Full Text:: quantitatively inherited (Peterson and Foster, 1973). Principal components of winterhardiness are vernalization

Winter wheat response to nitrogen, phosphorus, sulfur, and zinc supplied by municipal biosolids

Creator:: Shearin, Todd E.
Resource Type:: Masters Thesis
Full Text:: ) and biosolids (BS) effects on grain yield at P-95 (a); and M-96 (b). 2.2 Anhydrous ammonia (AA, 56 kg

ScholarsArchive@OSU

The effect of preplant nitrogen fertilization and soil temperature on biological nitrogen fixation and yield of alfalfa (Medicago sativa L.)

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Fallow water retention and wheat growth as affected by tillage method and surface soil compaction

Physiological responses of creeping red fescue to stubble management and plant growth regulators

Cytology, inbreeding depression, and heterosis of Cuphea Lanceolata Ait

Field microplot estimates of soil N mineralization for manured and non-manured soils

Water management effects on birdsfoot trefoil seed production

Cover crops and biochemical functional diversity in relation to nitrogen availability in soil

Mapping of quantitative trait loci for malting quality in a winter X spring barley (Hordeum vulgare, L.) cross

Winter wheat response to nitrogen, phosphorus, sulfur, and zinc supplied by municipal biosolids

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