Index Catalog // ScholarsArchive@OSU

Alternative orchard floor management practices, soil quality, nitrogen fertilizeruptake, and apple tree growth and yield

Creator:: McDonald, Sarah Finger
Abstract:: Orchard floor management (OFM) practices can improve soil function and alter the soil biological community. Soil function is dependent on soil forming materials and on management practices but little is known about how OFM affect orchard soil quality, fertilizer N uptake, or tree growth and production. Research plots were located...
Resource Type:: Dissertation
Full Text:: dwarfing M26EMLA rootstock) and Hood River, OR (HR) (M. x domestica ‘Red Delicious’ grafted on M7EMLA

Effects of Diet and Humidity on Drosophila suzukii Flight Performance

Creator:: Wong, Jessica S.
Abstract:: Drosophila suzukii is a global and economically significant pest of berries and other soft fruits. This insect can survive and reproduce under a wide variety of environmental conditions and with a substantial number of cultivated and wild hosts. Management of D. suzukii is commonly done with chemical control strategies. However,...
Resource Type:: Masters Thesis
Full Text:: velocity that female D. suzukii fly between resources. Overall, the flight distances ranged from 1 m to

Effects of nitrogen source, rate and a nitrification inhibitor on soil nitrogen status and mineral composition of strawberry

Creator:: Marion, Carol I.
Abstract:: Three rates of urea, urea-DCD, and NH₄N0₃ were soil applied in April and August 1986 to strawberry selection OR-US 4930 and cultivar 'Sumas' to determine effects of the nitrification inhibitor dicyandiamide (DCD) and nitrogen source and rate on soil NH₄ and N0₃ levels, fruit yield and quality, and mineral composition...
Resource Type:: Masters Thesis
Full Text:: / 1 1.0 - /V \ ^ f M - 0.5 n n * /^V^ >j ̂ ̂ f" 1 1 t7, V 1

Impact of cover crops on weed abundance and nitrogen contribution in broccoli, Brassica oleracea var. italica, production systems in the maritime Pacific Northwest

Creator:: Angustia, Segundo Nova
Resource Type:: Masters Thesis
Full Text:: nitrogen source for no-till corn and grain sorghum. Agron. J. 82:769-772. Bremner, J. M. and R. D. Hauck

Improving nitrogen management with cover crops in organic broccoli production

Creator:: Garrett, Amy
Abstract:: Legume cover crops can serve as important sources of nitrogen (N) in sustainable agriculture and can be economically beneficial when fertilizer inputs are reduced without a yield reduction. Synchronizing N mineralization from organic materials with the needs of the subsequent crop is a challenge for organic growers. Predicting plant available...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________________________ John M. Luna Legume cover crops can serve as important sources of nitrogen (N) in

Nitrogen dynamics in field grown comice pears

Creator:: Sanchez, Enrique E.
Abstract:: The dynamics of N was studied in field grown Comice/Provence quince BA29 pears in Medford, Oregon. Total tree biomass, N content, and ¹⁵N evaluations suggest that young pears require little N (48 kg N ha⁻¹ yr⁻¹). About 45% of total tree N present in dormant trees was remobilized into new...
Resource Type:: Dissertation
Full Text:: positions. Codes are as follows: W - west, S =• south, N - north, E - east; M - middle, T - top, B

Nitrogen partitioning and remobilization in field-grown apple trees

Creator:: Khemira, Habib
Abstract:: Uptake and cycling of nitrogen (N) in mature trees are not well understood. Fertilizer-N uptake, partitioning, and use-efficiency were studied in standard strain 'Topred Delicious' and spur strain 'Redspur Delicious' mature apple trees {Malus domestica Borck) on 'Malling 7A' (M.7A) rootstocks. The treatments consisted of a ground application in spring,...
Resource Type:: Dissertation
Full Text:: Delicious' mature apple trees {Malm domestica Borck) on 'Mailing 7A' (M.7A) rootstocks. The treatments

Nitrogen partitioning in 'Marion' and 'Kotata' blackberries grown in alternate-year production

Creator:: Mohadjer, Paula
Resource Type:: Masters Thesis
Full Text:: harvest with individual final cane lengths ranging from 6 to 9 m. However, the current fertilization

Nitrogen use and management in red raspberry

Creator:: Rempel, Hannah Gascho
Abstract:: The effects of ¹⁵N-labeled fertilizer applied to mature summer-bearing red raspberry (Rubus idaeus L.) plants were measured over two years. Four nitrogen (N) treatments were applied singularly at 0, 40, or 80 kg·ha⁻¹ of N in early spring (budbreak), or split with 40 kg·ha⁻¹ of N (unlabeled) applied at budbreak...
Resource Type:: Masters Thesis
Full Text:: the end of the second year, 5-12% of the fertilizer acquired in 2001 remained m the fertilized plants

Nitrogen use in container-grown woody ornamentals

Creator:: Sandrock, David Ray, 1971-
Abstract:: Lasting, effective solutions to nitrogen (N) loss from container nurseries must address layers of complexity ranging in scale from whole system nursery management to gene expression. Group-based On-site Active Learning (GOAL) was developed to aid nursery managers and related stakeholders (e.g. neighbors, policy makers, regulating agencies, researchers) in developing a...
Resource Type:: Dissertation
Full Text:: determinations of N fertilizers can be made more accurately (Hauck and Bremner, 1976) and treatment effects are

ScholarsArchive@OSU

Alternative orchard floor management practices, soil quality, nitrogen fertilizeruptake, and apple tree growth and yield

Effects of Diet and Humidity on Drosophila suzukii Flight Performance

Effects of nitrogen source, rate and a nitrification inhibitor on soil nitrogen status and mineral composition of strawberry

Impact of cover crops on weed abundance and nitrogen contribution in broccoli, Brassica oleracea var. italica, production systems in the maritime Pacific Northwest

Improving nitrogen management with cover crops in organic broccoli production

Nitrogen dynamics in field grown comice pears

Nitrogen partitioning and remobilization in field-grown apple trees

Nitrogen partitioning in 'Marion' and 'Kotata' blackberries grown in alternate-year production

Nitrogen use and management in red raspberry

Nitrogen use in container-grown woody ornamentals

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