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Filtering by: Creator Bull, Ann Scarborough Academic Affiliation Crop and Soil Science Committee Member Christensen, Neil

The influence of phosphatase-producing bacteria on phosphatase activity and available phosphorus in soil

Creator:

Nelson, Sheila J.

Resource Type:

Masters Thesis
Symbiotic characteristics of Rhizobium leguminosarum bv. trifolii recovered from nodules of field-grown Trifolium subterraneum L.

Creator:

Wanjagi, Francis Ndung'u

Abstract:

In a series of greenhouse experiments, isolates representing serotypically distinct subpopulations of Rhizobium leguminosarum bv. trifolii recovered from root nodules of field-grown subclover Trifolium subterraneum cv. "Nangeela"), were evaluated for their symbiotic effectiveness potential, their effect on regrowth potential of subclover, and for their competitive abilities to form nodules. Isolates...

Resource Type:

Masters Thesis
Nutrient management and cycling in grass seed crops

Creator:

Horneck, Donald Arthur

Abstract:

Grass seed production in Oregon's Willamette Valley traditionally relied on open field burning for straw residue disposal and nutrient recycling. Changes in residue management from open field burning to methods that remove straw coincided with rapidly declining K soil test values. A survey of grass seed fields showed that many...

Resource Type:

Dissertation

Full Text:

temperature differentials on root/shoot ratios in some pasture grasses and clover. Ann. Bot 33:561-569. I
Spring irrigation management of tall fescue (Festuca arundinacea Schreb.) seed crops

Creator:

Orthel, Krista D.

Abstract:

Later maturing cultivars and increased ability to apply irrigation have led to inquiries by producers about proper irrigation management in tall fescue (Festuca arundinacea Schreb.) seed crops. The literature reveals little information about irrigation of perennial grass seed crops in general, and none about tall fescue in particular. Willamette Valley...

Resource Type:

Masters Thesis

ScholarsArchive@OSU

The influence of phosphatase-producing bacteria on phosphatase activity and available phosphorus in soil

Symbiotic characteristics of Rhizobium leguminosarum bv. trifolii recovered from nodules of field-grown Trifolium subterraneum L.

Nutrient management and cycling in grass seed crops

Spring irrigation management of tall fescue (Festuca arundinacea Schreb.) seed crops

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