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Filtering by: Creator Anderson, Lain Academic Affiliation Soil Science Decade 1980-1989

Fertilizer nitrogen use efficiency by winter wheat in the Willamette Valley

Creator:

Kjelgren, Roger Keith

Abstract:

Efficiency of nitrogen fertilizer uptake by soft white winter wheat (Triticum aestivum L.) was measured over two cropping seasons across a range of soils and cropping histories in the Willamette Valley. Fate and potential losses of applied nitrogen were also assessed over a seventeen month period. In both cropping seasons,...

Resource Type:

Masters Thesis

Full Text:

managed more carefully. The experimental site was located on a strip of land that had lain fallow the
Analysis of a hydrologic balance model and Penman-Monteith evapotranspiration estimating methods

Creator:

Carrijo, Osmar Alves

Abstract:

The major objectives of this study were an evaluation of the Meteorological Office Rainfall and Evaporation Calculation System (MORECS) evapotranspiration (ET) model using the Penman-Monteith equation and comparison of the MORECS and measured surface resistance. Meteorological, soil and plant parameters were measured in an alfalfa field over two growing seasons....

Resource Type:

Dissertation