Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Committee Member Nelson, Gene Committee Member Frakes, Rod

Effect of lot size on lot uniformity in Lolium spp. seed

Creator:

Cook, Ronald Lawrence

Abstract:

Studies were conducted to determine the uniformity of three commercial seed lots of ryegrass (Lolium spp.) and the effects of lot size on lot uniformity. Individual bag-samples were taken from each seed lot. Factors considered were percentage purity, annual ryegrass, perennial ryegrass, weed, other crop, inert matter, and germination. Number...

Resource Type:

Masters Thesis

Full Text:

above all, their encouragement and interest in my thesis project. To Dr. Rod Frakes and Dr. A. Gene
Relationships among phosphorus soil tests, forms of soil phosphorus, and plant uptake of phosphorus for selected southwestern Oregon soils

Creator:

Doerge, Thomas A.

Abstract:

A diversity in climate, geologic parent material, and soil characteristics exist in Jackson, Josephine, Coos, and Douglas Counties of southwest Oregon. Previous field trials and soil testing results have revealed uncertainties as to the phosphorus (P) status of the soils in this area. Twenty-four sites from nine agriculturally significant soil...

Resource Type:

Masters Thesis

Full Text:

career in Soil Science. I would also like to thank Dr. Tom Jackson, Dr. Rod Frakes, and Dr. Gene Nelson