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Filtering by: Creator Jackson, Lynn Committee Member Evans, H. J.

Molybdenum status of subclover (Trifolium subterraneum) as affected by Mo and S fertilization and soil type

Creator:

Jarrell, Wesley M.

Abstract:

Field studies designed to study residual effects from fertilizer molybdenum were initiated in September 1971 on established grass-clover pastures at ten sites in Western Oregon. Treatments were 0.0 and 1.12 kg molybdenum /ha on plots receiving 0-35-0-20S fertilizer (elemental sulfur-S) and 0.0, 0.56, 1.12 and 2.24 kg molybdenum /ha on...

Resource Type:

Masters Thesis

Full Text:

Mosher and Lynn Cannon, county extension agents, for their suggestions and assistance in the field
Clay mineralogy and related chemical properties of soils formed on Mazama pumice

Creator:

Chichester, Frederick Wesley

Abstract:

A sequence of soil profiles was sampled along a climate-vegetation transect on the dated Mazama pumice fall in central Oregon. The <2 μ size fraction from each sample was characterized with respect to the relative significance of amorphous and crystalline components, and the individual minerals of the latter group were...

Resource Type:

Dissertation

Full Text:

and organic matter according to the procedure outlined by Jackson (1956, p. 33, 35), and the <2p
The effect of soil acidity and lime placement on root growth and yield of winter wheat and alfalfa

Creator:

Kauffman, Marvin Dean

Abstract:

The application of lime to an acid Nekia soil significantly increased the yield of winter wheat and alfalfa in a field experiment. Crop yields maximized when the lime was partially mixed into the surface four inches of the soil. Thorough mixing of the lime into the surface six inches of...

Resource Type:

Dissertation

Full Text:

rough drafts of my thesis. And I owe special thanks to my daughters, Lynn and Karen, for their help and