Archive Nut, Prune and Olive Programs

Intermountain Research and Extension Center: Page

About Us

IREC Today IREC was established in 1947 via a cooperative agreement between the US Bureau of Reclamation, the University of California and the Tulelake Growers Association.
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Facilities

IREC Mini Mint Still Facilities at IREC include a 700-square-foot greenhouse and headhouse area, potato-storage research facility, an electronic potato grading line, a peppermint oil mini still, seed cleaning and handling room, covered equipment storage, mechanic's shop, pesticide storage and wet &...
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Research

IREC researchers are evaluating experimental and new potato cultivars IREC Potato Plots for suitability to local soil, climate and market conditions. Studies also evaluate cultivar response to fertilization, seed-spacing, irrigation, and other cultural practices.
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Research Advisory Committee

The Research and Extension Center System (RECS) supports field research, education and extension activities by providing suitable environments including land, labor, facilities and support staff.
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Submitting a Proposal

An annual call for proposals is announced on this website, in newsletters and publications February through April. However, off-cycle research projects are generally accepted outside the normal call for proposals as long as space and labor are available.
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Environmental Health & Safety

Please visit the UC ANR Environmental Health and Safety page for more information. The most recent Safety Notes are located on this page. For information on Guidelines, Policies & Procedures as well as information on Reporting an Injury, please see here.
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Center Facilities and Research Support

The Intermountain Research and Extension Center is a 140-acre research facility located at 4,000 feet elevation near the Oregon border.
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Research Reports

UC Research has been conducted at IREC since 1947. Recent progress reports are listed by crop and year on the left side navigation.
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Weather, Physical & Biological Data

IREC sits on 140 acres of rich, reclaimed lake-bottom soil with >5% organic matter content. The Tulebasin mucky silty clay loam soil is well suited for growing potatoes, onions, cereal grains, alfalfa, peppermint and forage grasses, all of which you will find growing on the Center.
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