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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 ...

Dan M. Sullivan, Nick Andrews, Aaron Heinrich, Ed Peachey, Linda Brewer | Aug 2023 | Extension Catalog publication Peer reviewed (Orange level)

Monitoring Soil Nutrients Using a Management Unit Approach

Focuses on how to design a soil nutrient monitoring strategy using management units or zones for soil testing and nutrient application. This approach is designed to provide better information to make nutrient ...

Mary Halbleib, Jason W. Ellsworth, Dan M. Sullivan, Donald A. Horneck, Bradford D. Brown, Robert G. Stevens | Oct 2003 | Extension Catalog publication Peer reviewed (Orange level)

Using the Nitrogen Mineralization Soil Test to Predict Spring Fertilizer N Rate for Soft White Winter Wheat Grown in Western Oregon

Soft white winter wheat is grown in western Oregon and requires a spring application of nitrogen (N) fertilizer for optimum production. Determining the amount of N to apply has been a challenge for growers. ...

Nicole Anderson, John M. Hart, Neil W. Christensen, Mark E. Mellbye, Michael D. Flowers | Nov 2010 | Extension Catalog publication Peer reviewed (Orange level)

Fine Fescue Seed: Western Oregon—West of Cascades Fertilizer Guide

Recommends fertilizer rates for fine fescue seed in western Oregon based on soil test results for nitrogen, phosphorus, potassium, sulfur, micronutrients, lime, calcium, and magnesium.

Gale Gingrich, John M. Hart, Donald A. Horneck, William C. Young III, Tom Silberstein | Aug 2019 | Extension Catalog publication Peer reviewed (Orange level)

Winter Wheat and Spring Grains in Continuous Cropping Systems (Low Precipitation Zone) Fertilizer Guide

Addresses nutritional requirements of nonirrigated cereal crops in north-central and eastern Oregon. Includes recommendations for nitrogen, phosphorus, potassium, sulfur, chloride, and zinc.

Don Wysocki, Larry Lutcher, Donald A. Horneck, John M. Hart, Steven Petrie | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Winter Wheat in Summer-Fallow Systems (Intermediate Precipitation Zone) Fertilizer Guide

Addresses nutritional requirements of nonirrigated cereal crops in north-central and eastern Oregon. Includes recommendations for nitrogen, phosphorus, potassium, sulfur, chloride, and zinc.

Larry Lutcher, Donald A. Horneck, Don Wysocki, John M. Hart, Steven Petrie, Neil W. Christensen | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Winter Wheat in Continuous Cropping Systems (Intermediate Precipitation Zone) Fertilizer Guide

Addresses nutritional requirements of nonirrigated cereal crops in north-central and eastern Oregon. Includes recommendations for nitrogen, phosphorus, potassium, sulfur, chloride, and zinc.

Don Wysocki, Donald A. Horneck, Larry Lutcher, John M. Hart, Steven Petrie, Mary Corp | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Winter Wheat in Continuous Cropping Systems (High Precipitation Zone) Fertilizer Guide

Addresses nutritional requirements of nonirrigated cereal crops in north-central and eastern Oregon. Includes recommendations for nitrogen, phosphorus, potassium, sulfur, chloride, and zinc.

Steven Petrie, Don Wysocki, Donald A. Horneck, Larry Lutcher, John M. Hart, Mary Corp | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)