Index Catalog // ScholarsArchive@OSU

Evaluation and use of a soil mineralizable nitrogen test to determine the fertilizer nitrogen needs of winter wheat grown in western Oregon

Creator:: Baloch, Dost M.
Abstract:: The assessment of optimum nitrogen (N) fertilizer need for winter wheat (Triticum aestivum L.) is important for economic and environmental sustainability. A comprehensive understanding of fertilizer N requirement depends on estimation of the quantity of N needed by the crop versus that supplied by soil. The objectives of this study...
Resource Type:: Dissertation
Full Text:: Determine the Fertilizer Nitrogen Needs of Winter Wheat Grown in Western Oregon by Dost M. Baloch A

Role of a grass riparian zone in controlling the fate of nitrogen in a poorly drained agricultural landscape

Creator:: Davis, Jennifer H.
Abstract:: Riparian ecosystems, through their unique positions in the agricultural landscape, have the potential to mitigate nutrient loading to streams. This study was conducted to gain a better understanding of N cycling in a poorly drained Grass Riparian Zone (GRZ) and adjacent Perennial Ryegrass seed Field (PRF) in the Willamette Valley,...
Resource Type:: Dissertation
Full Text:: that was not processed in the PRF entered the GRZ, it was consumed within 6 m in shallow soil water

Nitrogen and dry matter relationships for winter wheats produced in western Oregon

Creator:: Locke, Kerry A.
Resource Type:: Dissertation
Full Text:: . Karow Redacted for privacy John M. Hart An understanding of nitrogen concentration patterns in above

Mapping quantitative trait loci underlying genome-wide recombination rate and mating system differences in meadowfoam

Creator:: Kishore, Venkata Krishna
Abstract:: Meadowfoam (Limnanthes alba Bentham; Order: Brassicales; Family: Limnanthaceae) is a self-compatible, predominantly allogamous, insect pollinated species. Meadowfoam oil is a source of novel unsaturated very-long-chain (VLC) seed oils (C₂₀ and C₂₂) with low concentrations of saturated fatty acids (typically less than 2%) and outstanding oxidative stability. Here we report the...
Resource Type:: Dissertation
Full Text:: committee, Dr. Patrick M. Hayes. Dr. James C Peterson, Dr. Tony Chen and Dr. Gregory Thompson for their

Simple sequence repeat marker development and mapping in cultivated sunflower, Helianthus annuus L.

Creator:: Yu, Ju-Kyung
Abstract:: The cultivated sunflower (Helianthus annuus L., x=17) is one of the most important annual oilseed crops in the world. There are very few publicly shared sequence-based DNA markers and genetic maps in sunflower, even though molecular DNA markers and genetic maps have become widely used in all areas of genetic...
Resource Type:: Dissertation
Full Text:: . Patrick M. Hayes, Dr. Oscar Riera-Lizarazu, and Dr. Robert P. Griffiths for their time and guidance. I

Nitrogen available to winter wheat as influenced by previous crop in a moist xeric environment

Creator:: Qureshi, Maqsood Hassan
Abstract:: Rotating wheat with other crops is a common practice in the Willamette Valley of western Oregon. Depending upon previous crop and soil type, current N fertilizer recommendations for wheat in the Willamette Valley vary widely. Excessive fertilizer poses environmental risk, whereas lower N inputs than required by the crop represent...
Resource Type:: Dissertation
Full Text:: . Fresenius' J. Anal. Chem. 338: 394- 398. Hauck, R. D., and J. M. Bremner. 1976. Use of tracers for soil and

Small broomrape (Orobanche minor) management using wheat (Triticum aestivum) as a false host

Creator:: Al-thahabi, Salam A.
Abstract:: Small broomrape (Orobanche minor) is an obligate, chlorophyll-lacking parasite that parasitizes red clover (Trifolium pratense) roots. This study was conducted to develop and implement an integrated, biologically based control program for small broomrape by using wheat as a false host to reduce the soil seed bank. The relationship between temperature...
Resource Type:: Dissertation
Full Text:: temperature and seeds were cleaned using 100-μm sieves and stored in the dark at room temperature

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:: fertilization. Soil Sci. Soc. Am. J. 57: 1034-1040. Campbell, C. A., K. E. Bowren, M. Schnitzer, R. P. Zentner

Genetics of low erucic acid and cytological analyses of wide hybrids in meadowfoam

Creator:: Gandhi, Sonali Dilip
Abstract:: Cultivated meadowfoam (Limnanthes alba Benth.) is an annual oil seed crop native to southern Oregon. California and British Columbia. The genus Limnanthes is composed of nine species and divided into two sections, Inflexae and Reflexae. The seed oil of meadowfoam is a rich source of erucic acid and several novel...
Resource Type:: Dissertation
Full Text:: Table Page 2.1. Fatty acid concentrations for wildtype (WT) and low erucic acid (LE76 M7, M. M4. and M

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

Creator:: McMorran, Jeffrey P.
Resource Type:: Dissertation
Full Text:: and soil solution to 1.2 m, and petiole samples taken throughout the season were analyzed for NO3-N

ScholarsArchive@OSU

Evaluation and use of a soil mineralizable nitrogen test to determine the fertilizer nitrogen needs of winter wheat grown in western Oregon

Role of a grass riparian zone in controlling the fate of nitrogen in a poorly drained agricultural landscape

Nitrogen and dry matter relationships for winter wheats produced in western Oregon

Mapping quantitative trait loci underlying genome-wide recombination rate and mating system differences in meadowfoam

Simple sequence repeat marker development and mapping in cultivated sunflower, Helianthus annuus L.

Nitrogen available to winter wheat as influenced by previous crop in a moist xeric environment

Small broomrape (Orobanche minor) management using wheat (Triticum aestivum) as a false host

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

Genetics of low erucic acid and cytological analyses of wide hybrids in meadowfoam

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

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