Index Catalog // ScholarsArchive@OSU

Groundwater and nitrogen management in Willamette Valley mint production

Creator:: Oregon State University. Extension Service, Selker, John, and Rupp, David Earl
Abstract:: Directly below commercial mint fields, percolation in excess of 10 ppm of nitrogen as nitrate (NO3 --N), the EPA drinking water standard, occurs for much of the year (Figure 1, page 2). Concentrations rise rapidly after irrigation starts in June, indicating that this nitrogen is being pushed through by irrigation...
Resource Type:: Technical Report
Full Text:: based on your specific conditions and irrigation system, see the “Western Oregon Irrigation Guides

Strategies for reducing irrigation water use

Creator:: Jensen, Lynn, Shock, Clinton C., and Oregon State University. Extension Service
Abstract:: When water is plentiful, growers usually schedule irrigation practices around other farming activities. For example, most growers change furrow irrigation sets at 12- or 24-hour intervals because this timing is convenient and uses labor efficiently. When water is in short supply, you need to rethink some practices to obtain maximum...
Resource Type:: Technical Report
Full Text:: Strategies for Reducing Irrigation Water Use (Oregon State

An irrigation efficiency model for optimum irrigation management

Creator:: Isbell, Brett, 1978-
Abstract:: Improved water use efficiencies in irrigated agriculture are necessary to assist in coping with the accelerating demand and economic competition for the world's fresh water supply and increasing ecological concerns. This will likely rely in part on optimum irrigation, which implies regulated deficit irrigation. While conventional irrigation management is intended...
Resource Type:: Masters Thesis
Full Text:: optimum irrigation advisory service in Oregon, an irrigation efficiency model (IEM) was developed to

Potential benefits of water banks and water transfers

Creator:: Jaeger, William K. (William Kenneth) and Oregon State University. Extension Service
Abstract:: Since publication of the Oregon State University–University of California report on Klamath Basin water allocation,1 the Bureau of Reclamation (BOR) and Klamath Water Users Association (KWUA) initiated a pilot project to compensate growers who agree to withhold irrigation from 12,000 acres of Project lands. This “Pilot Water Bank,” in place...
Resource Type:: Technical Report
Full Text:: Allocation in the Klamath Reclamation Project, Brief #2), EM 8844-E (Oregon State University Extension

Evaluation of models for estimating surface irrigation infiltration parameters : Data protocols and algorithm performance

Creator:: Isbell, Sarah A.
Abstract:: Often furrow irrigation application efficiencies are low compared to sprinkler systems. The primary goal of furrow irrigation is to infiltrate a relatively uniform target depth of water necessary for the crop, while minimizing the amount of runoff. The concept is difficult because water can infiltrate differently at all locations in...
Resource Type:: Masters Thesis

Spring irrigation management of perennial ryegrass (Lolium perenne L.) seed production

Creator:: King, Craig Millhouser
Abstract:: Introduction of later maturing cultivars of perennial ryegrass (Lolium perenne L.) places more seed production fields in a period of drought common to Oregon during vital stages of reproductive development. During these stages, the final yield of the crop is largely determined by the number of seeds set, and the...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Crop Science presented on November 15. 2004. Title: Spring Irrigation

Management guide for drip irrigation on seed carrots in central Oregon

Creator:: Oregon State University. Extension Service, Weber, C. E. (Caroline E.), Butler, M. D., Campbell, C. K., Holliday, B. A., and Klauzer, J.
Abstract:: In 2000 and 2001, research at the Central Oregon Agricultural Research Center in Madras, Oregon evaluated drip irrigation significant reduction in water usage, increased seed yields, and a decrease in disease. As a result, drip irrigation was placed in commercial fields in 2002. Drip irrigation is now used in the...
Resource Type:: Technical Report
Full Text:: the Central Oregon Agricultural Research Center in Madras, Oregon evaluated drip irrigation on seed

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
Full Text:: irrigation management decisions. A field study was established near Corvallis, Oregon on a Woodburn silt

Evaluation of evapotranspiration and irrigation performance in Oregon south coast

Creator:: Sriprisan, Sirikul (Indi)
Abstract:: This study was prompted by the need for improving the efficiency of irrigation systems at the Oregon South coastal areas. Accurate information about evapotranspiration (ET) rates is essential for maximizing the efficiency of irrigation systems. Currently, ET estimates provided by Bureau of Reclamation AgriMet Program are derived from the Kimberly...
Resource Type:: Masters Thesis
Full Text:: Evapotranspiration and Irrigation Performance in Oregon South Coast. Abstract appreved: Marshall J. English This

El control del riego mediante la tensión matricial del suelo

Creator:: Shock, Clinton C., Flock, Rebecca, Feibert, Erik, Shock, Cedric A., Pereira, Andre, Jensen, Lynn, and Oregon State University. Extension Service
Abstract:: Una de las herramientas más eficaces utilizadas por el Malheur Experiment Station durante las últimas dos décadas es el sensor matricial granular (o GMS por sus siglas en inglés), el cual mide la humedad del suelo. El sensor tiene sólo 7,5 cm de largo, y normalmente se entierra verticalmente en...
Resource Type:: Technical Report
Full Text:: . Shock. 2004. Comparison of the AM400 and Irrometer Monitor for Precise Irrigation Scheduling. Oregon

ScholarsArchive@OSU

Groundwater and nitrogen management in Willamette Valley mint production

Strategies for reducing irrigation water use

An irrigation efficiency model for optimum irrigation management

Potential benefits of water banks and water transfers

Evaluation of models for estimating surface irrigation infiltration parameters : Data protocols and algorithm performance

Spring irrigation management of perennial ryegrass (Lolium perenne L.) seed production

Management guide for drip irrigation on seed carrots in central Oregon

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

Evaluation of evapotranspiration and irrigation performance in Oregon south coast

El control del riego mediante la tensión matricial del suelo

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