Index Catalog // ScholarsArchive@OSU

Creator:: Del Moro, Sarah K.
Abstract:: Ammonia (NH₃) volatilization and loss from nitrogen (N) fertilizer in agriculture negatively impacts crops, farm profitability, human health and surrounding ecosystems where it is deposited. A significant source of NH₃ volatilization occurs from surface application of urea on sandy soils with low pH buffering capacity such as those in the...
Resource Type:: Masters Thesis
Full Text:: -N loss ranged from 19 to 68% vs. urea in the field, and 16 to 98% vs. urea in the laboratory

Creator:: Weidman, Clara S.
Abstract:: Nursery and greenhouse products are economically important agricultural commodities for Oregon and Washington. Nursery crops including tree seedlings can be damaged or killed by soilborne plant pathogens, which can be challenging to manage because of their persistence in soil and limited options for control. Soil solarization is a pre-planting soil...
Resource Type:: Masters Thesis

Creator:: Costello, Ryan C.
Abstract:: Highbush blueberry (Vaccinium corymbosum L.) is adapted to soils with high organic matter and acidic pH. Composts provide organic matter and nutrients for growing blueberry in mineral soils, but many composts are high in pH and soluble salts. Acidification with elemental sulfur (S°) can remedy high pH, but the process...
Resource Type:: Masters Thesis
Full Text:: ……………………..…………………………………….……… 16 Introduction……..………...……………………………………………… 17 Materials and Methods…………………………………………………… 19

Creator:: Jenevein, Steven A.
Abstract:: Locating archaeological sites that predate the arrival of modern sea level has been difficult along the Oregon coast. This is in part believed to be the result of geologic processes that have influenced the preservation, distribution, and visibility of sites within the Oregon coastal landscape. Because of these changes, researchers...
Resource Type:: Masters Thesis
Full Text:: ........................................................................ 14 2.3.2. Coseismic Subsidence and Tsunami ............................................ 16 2.3.3

ScholarsArchive@OSU