Onions

1.  Variety Trials

• Vegetable Variety Trial Results - 2008 (Oregon State Univ.) 

2. Crop Establishment

• Commercial Vegetable Production Guidelines for Onions (Oregon State Univ.) 

2.1 Soil Sampling and Nutrient Management

• Central Analytical Laboratory (Oregon State Univ.)
• Nutrient Management Guide (includes a list of Analytical Laboratories serving Oregon)
• Taking Soil Samples
• Acidifying Soils for Crop Production East of the Cascades (Oregon State Univ.)
• Web Soil Survey - Maps, reports, and surveys of Umatilla County
• North American Proficiency Testing Program accredited laboratories for soil and tissue analyses

• Applying Lime to Raise Soil pH for Crop Production (Western Oregon)
• Eastern Oregon Liming Guide

3. Climatology

• National Weather Site (NOAA) 7-day Prediction
• Local Wind Conditions
• USDA Snow Pack Information 

4. Phenology

• Degree Day Models

5. Organic Production

5.1 Getting Started

• How To Go Organic

5.2 Certifications and Regulations

• USDA National Organic Program
• Organic Materials Review Institute OMRI
• Oregon Tilth
• Washington State Department of Agriculture Organic Food Program 

5.3 Production

• ATTRA Organic Allium Production 
• Washington State University - Organic Agriculture

6. Integrated Pest Management

• Crop Data Management Systems - Current label and MSDS information 
• General and Urban IPM in Oregon 
• Managing Wildlife Damage 
• Meadow Voles and Pocket Gophers:  Management in Lawns, Gardens, and Cropland 

6.1 Insect Pests

• EM 9054, Brown Marmoroated Stink Bug (PDF)
  EM 9054-S, El Chinche Apestoso Marrón Marmolado (PDF - Spanish)
  Authors: Chris Hedstrom, Nik Wiman, Vaughn Walton, Peter Shearer, Silvia Rondon, Jana Lee
  New January 2013, 2 pages, package of 20 for $13.50
• Pacific Northwest Insect Management Handbook
• Oregon State University Plant Clinic
• OSU Nematode Testing Service & Key for Nematode Identification
• Oregon State University IPM Resource Guide 
• West Virginia University Pest Identification
• Pesticide Information Center Online (PICOL)
  

6.2 Diseases

• Pacific Northwest Plant Disease Management Handbook
• West Virginia University Disease Identification

6.3 Weeds

• Pacific Northwest Weed Management Handbook
• Weed Identification (Virginia Tech)

6.4 Biological Control

• Insect Pests and Commercially Available Natural Enemies for the Pacific Northwest
• Association of Natural Biocontrol Producers
• BioControl Network - Beneficial Insects, Mites & Organisms
• Suppliers of Beneficial Organisms in North America
• Bio-Integral Resource Center

7. Irrigation

• Oregon Crop Water Use and Irrigation Requirements 
• Managing Irrigation Water Quality for Crop Production in the Pacific Northwest 
• Successful Onion Irrigation Scheduling 
• Drip Irrigation - An Introduction 

8. Fertilization

• Soil Test Interpretation (Oregon State Univ.)

9. Postharvest Research Centers

9.1 United States

• Postharvest Handling of Fruit and Vegetables (ATTRA)
• Postharvest Information Network (Washington State Univ.)
• Postharvest Technology (UC Davis)
• Postharvest Programs & Information (Univ. of Florida)

9.2 International

• Information Network on Postharvest Operations (FAO)

9.3 Australia

• Sydney Postharvest Laboratory (CSIRO & Victoria Govt)

10. Processing

• Freezing Fruits and Vegetables (Oregon State Univ.) 
• Food Preservation (Oregon State Univ.)

11. General Interest

• History of the Walla Walla Sweet Onion
• Walla Walla Sweet Onions
• Sweet Onions in Texas
• Onion Information Texas A & M

12. Still haven't found what you're looking for?

• Peer-reviewed Agricultural Search Engine
  
  • Cooperative Extension Search
  • Plant Management Network