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Filtering by: Creator Mangum, Doris Louella Degree Name Doctor of Philosophy (Ph.D.)

Silicic acid and oxidizable carbon movement in a Walla Walla silt loam as related to long-term residue and nitrogen applications

Creator:

Douglas, Clyde Lee

Abstract:

Intensive cultivation of Walla Walla silt loams (coarse silty, mixed, mesic, typic Haploxeroll) in eastern Oregon and Washington during the past 50 years, has decreased internal soil drainage in the 15 to 40 cm layer. However, no measurements have been made to determine the causes and corrective management for this...

Resource Type:

Dissertation