Carrot seed production in Oregon

Central Oregon Agricultural Research and Extension Center help Jefferson county to be at the center of Oregon seed production. Jefferson county produces over 50% of the carrot seed grown in the United States. Seed growers, contractors, and companies all work together and with COAREC to produce the best seed, using the best practices.

Want to learn more about this topic? Explore more resources from OSU Extension: Vegetables and Specialty Seeds

Was this page helpful?

Related Content from OSU Extension

Cover crop establishment in western Oregon vegetables

Cover crops planted in the fall offer a wealth of benefits such as protecting soil from erosion, supplying nitrogen and reducing weeds. Here are options for preparing a cover crop seedbed and a look at seeding methods.

Nick Andrews | Oct 2014 | Article

The Columbia Root-Knot Nematode Problem

The Columbia root-knot nematode attacks potatoes and causes injury to tubers in the Columbia Basin of Oregon and Washington as well as other areas of the Pacific Northwest.

Jim Green | Apr 1981 | Article

Using heat units to schedule vegetable plantings, predict harvest dates, and manage crops

Temperature controls the development of many organisms that don’t have complex thermoregulatory systems. This allows us to predict the development of different organisms by accurately using development or phenology models which are ...

Nick Andrews, Leonard Coop | May 2012 | Article

Carrot rust fly biology & management

Carrot rust flies (Psila rosae) are well known to growers of carrots, parsnips, celeriac, celery and other umbelliferous crops. The adult females are attracted to the odor of the host plant, and lay their eggs at the crown ...

Nick Andrews | Dec 2009 | Article

Wireworm: Biology and Nonchemical Management in Potatoes in the Pacific Northwest

Wireworms are among the most destructive of soil insect pests. This publication explains the wireworm life cycle and describes a program for monitoring and risk assessment. Nonchemical management methods are suggested, including crop ...

Nick Andrews, Silvia I. Rondon | Dec 2008 | OSU Extension Catalog Peer reviewed (Orange level)

Croptime: Scheduling vegetables with degree-day models

Endothermic “warm blooded” organisms like birds and mammals maintain relatively constant body temperatures, so their metabolic reactions and development rates are fairly consistent over time. However, body temperatures of ectothermic ...

Nick Andrews, Heidi Noordijk | Mar 2016 | Article

2022 Green Pea Variety Trial Report

A field trial of new and established green processing pea varieties has been conducted in the Milton-Freewater, OR, area since the mid-1980s to support the historic green pea industry in the region. This report summarizes the results of the 2022 Green Pea Variety Trial conducted in a commercial field near Milton-Freewater, OR.

Cody Copp | Mar 2023 | Publication

Nutrient Management for Sustainable Vegetable Cropping Systems in Western Oregon

This publication reflects over 30 years of vegetable production research conducted in the Willamette Valley. It is divided into three main sections: sustainable soil health; soil testing and nutrient management; and nitrogen ...

Dan M. Sullivan, Ed Peachey, Aaron Heinrich, Linda Brewer | May 2017 | OSU Extension Catalog Peer reviewed (Orange level)

Snap Bean—Western Oregon, Nutrient Management Guide

Provides nutrient management information and recommendations for bush snap beans grown in western Oregon for processing or fresh market. Includes descriptions of plant nutrient deficiency with color photos, and information on optimum application rates, timing, and placement.

Aaron Heinrich, Dan M. Sullivan, Ed Peachey | Nov 2016 | OSU Extension Catalog Peer reviewed (Orange level)

Estimating Nitrogen Mineralization in Organic Potato Production

Describes a "crop N uptake" method for estimating N mineralization from soil organic matter. Crop N uptake is a site-specific indicator of N that is "available" to the crop.

Dan M. Sullivan | Jan 2008 | OSU Extension Catalog Peer reviewed (Orange level)

Soil Nitrate Testing for Willamette Valley Vegetable Production

A soil nitrate test measures the concentration of nitrate in the soil at a specific moment in time, including nitrate originating from organic inputs, fertilizer, and soil organic matter. This publication describes how to use ...

Dan M. Sullivan, Nick Andrews, Aaron Heinrich, Ed Peachey, Linda Brewer | Jan 2019 | OSU Extension Catalog Peer reviewed (Orange level)

Silver Scurf Management in Potatoes

Describes the symptoms and damage caused by silver scurf, a fungal disease of potatoes. Includes color photos of symptoms. Discusses sources of inoculum and the disease life cycle. Suggests management practices (seed selection, crop...

Phil Hamm | Apr 2013 | OSU Extension Catalog Peer reviewed (Orange level)

Resiliency is the theme at 23rd OSU Small Farms Conference

The conference is the premiere event organized by the OSU Extension Small Farms Program.

Kym Pokorny | Mar 3, 2023 | News story

OSU Extension statewide seed giveaway set to return for fourth year

Starting Feb. 6, individuals and households, schools and groups can sign up to receive an individual/household seed kit, group kit or seed-starting teacher classroom kit through the mail.

Chris Branam | Feb 3, 2023 | News story

Cost of onion production in eastern Oregon and Idaho

To estimate the cost of growing onions in eastern Oregon and Idaho, data is collected from growers, crop consultants, ag supply companies and Extension personnel. Here's a look at the report compiled from 2021 data.

Gina Greenway | Sep 2022 | Article

Rhubarb

Fertilizers, Hothouse Forcing, Harvesting, Handling, Storage, Pest Control

Aug 2004 | Article

Developing Oregon’s Winter Vegetable Market project fills need

The OSU Extension Small Farms Program has grown seven crops and 52 varieties for the winter vegetable project at the North Willamette Research and Extension Center (NWREC) in Aurora.

Heidi Noordijk | Feb 2023 | Impact story

Have a question? Ask Extension!

Ask Extension is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.

Ask us a question