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Filtering by: Creator Hauck, M. Advisor Azarenko, Anita N. Resource Type Dissertation

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
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
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