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Creator:: Chacon, Stephany S.
Abstract:: The bottleneck in the turnover of soil organic matter (SOM) is the conversion of large molecular compounds into smaller compounds that can be transported through a cell membrane of a microbe for processing. Once inside the cell, organic compounds can be converted into biomass or be respired. The microbial depolymerization...
Resource Type:: Dissertation
Full Text:: completing my work I’d like to thank my committee Dr. David Myrold, Dr. Peter Bottomley, Dr. Maria Dragila

Creator:: Leon-Chang, David P.
Abstract:: Previous studies indicated that fertigating with nitrogen (N) was more effective than using granular N fertilizers in production of northern highbush blueberry (Vaccinium corymbosum L.). To build on these findings, four studies were conducted in western Oregon to determine whether fertigation was also an effective method for applying other nutrients,...
Resource Type:: Dissertation
Full Text:: me the love for science; to Maria, my mother, from whom I inherited the passion for studying; to my

Creator:: Chilcote, Emma T.
Abstract:: Soil water repellency may be influenced by microbes whereby they produce aliphatic constituents (non-wetting materials) that coat the soil particles when they are subjected to desiccation stress.
Resource Type:: Presentation
Full Text:: . 0 20 40 60 80 Soil Depth Subsoil (0.2-1cm) Crust (0-.2cm) Q ua nt ity o f A lip ha tic

Creator:: Martinez, Pedro
Abstract:: Deeply weathered soils in tropical rainforests and savannas are classified as Ferralsols according to the World References Bases for Soil Resources (WRB). Ferralsols are most nearly akin to the Oxisols order defined in the US Soil Taxonomy. The acidity, low cation exchange capacity, and strong phosphorus retention by the oxidic...
Resource Type:: Dissertation
Full Text:: mineral-associated carbon content than Haplic Ferralsols. (l-o): particle-size distribution does not

ScholarsArchive@OSU