Index Catalog // ScholarsArchive@OSU

Soil water availability and chemical transport in a pear (Pyrus communis) orchard swelling clay soil under micro and flood irigation

Creator:: Chen, Chengci, 1964-
Resource Type:: Dissertation
Full Text:: grant # 30-262-9053. I want to express my sincere thanks to my adviser, Dr. Richard Roseberg, for his

Organic soil amendements (sic) : impacts on snap bean common root rot and soil quality

Creator:: Cespedes Leon, Maria Cecilia
Abstract:: Common root rot is a major disease of commercially grown snap bean (Phaseolus vulgaris L.) on the irrigated sandy soils of central Wisconsin. The objective of this study was to determine the relationships between soil properties and suppressiveness to common root rot of snap bean (causal agent Aphanomyces euteiches) in...
Resource Type:: Masters Thesis
Full Text:: Amendments: Impacts On Snap Bean Common Root Rot And Soil quality Abstract approved: Richard P. Dick

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

Creator:: Nelson, Sheila J.
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Richard P. Dick Phosphorus (P) is frequently a limiting soil nutrient because it is

Cover crops and biochemical functional diversity in relation to nitrogen availability in soil

Creator:: Burket, John Zimmerman
Abstract:: Nitrogen availability in agricultural soils from fertilizer, plant residue inputs, and soil organic matter has important implications beyond crop yield. Legume winter cover crops and one fourth the recommended N rate on sweet corn resulted in yields equivalent to those at the recommended rate in the Willamette Valley of western...
Resource Type:: Dissertation
Full Text:: : Richard P. Dick Nitrogen availability in agricultural soils from fertilizer, plant residue inputs, and

Transformations of sulfur in wetland rice soils

Creator:: Islam, M. Mujibul
Resource Type:: Dissertation
Full Text:: : Richard P. Dick In recent years sulfur (S) deficiency has emerged as constraint to rice production in

Effects of organic and inorganic soil amendments of phosphorus sorption

Creator:: Iyamuremye, Faustin
Resource Type:: Dissertation
Full Text:: or} Phosphorus Sorption Abstract approved: Richard P. Dick The effect of different rates of

Soil biochemical measures as ecological indicators across agricultural and forest ecosystems of Oregon

Creator:: Knight, Timothy R.
Abstract:: A variety of soil properties have been proposed and tested as potential indicators of soil quality. This study was conducted in an effort to produce a standardized soil quality index for systems in Oregon. Soils in both forested and agricultural systems were sampled in a wide variety of locations, climates,...
Resource Type:: Masters Thesis
Full Text:: Ecological Indicators Across Agricultural and Forest Ecosystems of Oregon Abstract approved Richard P. Dick

Effects of green manures on verticillium wilt of potatoes and on soil properties related to disease suppression

Creator:: Ochiai, Naoyuki
Abstract:: Increasing regulation and costs of soil fumigation to manage diseases such as Verticillium wilt caused by soil-borne pathogens have prompted a search for management alternatives. Single-year microplot experiments were conducted in 2002 and 2003 in central Oregon to evaluate the effects of Austrian winter pea, broccoli, and Sudan grass green...
Resource Type:: Masters Thesis
Full Text:: : Richard P. Dick Increasing regulation and costs of soil fumigation to manage diseases such as

The Biogeochemistry of nitrogen and phosphorus cycling in native shrub ecosystems in Senegal

Creator:: Dossa, Ekw'e Lokossou, 1960-
Abstract:: Two native shrub species (Piliostigma reticulatum and Guiera senegalensis) are prominent vegetation components in farmers’ fields in Senegal. However, their role in nutrient cycling and ecosystem function has largely been overlooked. A study including both laboratory and field experiments was conducted to evaluate potential biophysical interactions of the two shrub...
Resource Type:: Dissertation
Full Text:: Abstract approved: Richard P. Dick Two native shrub species (Piliostigma reticulatum and Guiera

Field management effects on the thermal stability and activity of soil enzymes in whole soil and aggregates

Creator:: Bandick, Anna Katrina
Resource Type:: Masters Thesis
Full Text:: approved: Richard P. Dick Activities of 11 enzymes were measured on samples collected from two

ScholarsArchive@OSU

Soil water availability and chemical transport in a pear (Pyrus communis) orchard swelling clay soil under micro and flood irigation

Organic soil amendements (sic) : impacts on snap bean common root rot and soil quality

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

Cover crops and biochemical functional diversity in relation to nitrogen availability in soil

Transformations of sulfur in wetland rice soils

Effects of organic and inorganic soil amendments of phosphorus sorption

Soil biochemical measures as ecological indicators across agricultural and forest ecosystems of Oregon

Effects of green manures on verticillium wilt of potatoes and on soil properties related to disease suppression

The Biogeochemistry of nitrogen and phosphorus cycling in native shrub ecosystems in Senegal

Field management effects on the thermal stability and activity of soil enzymes in whole soil and aggregates

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