Nicole Anderson

Associate Professor
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Content by Nicole Anderson

Lime Requirement Buffer pH Update 2019

Sep 2019
This fact sheet describes recent discrepancies between SMP and Sikora buffer pH lime requirement tests for western Oregon soils and provides recommendations for what to do. Many soil testing labs in the U.S. are switching from the SMP to the Sikora buffer test for lime requirement in an effort to reduce the use of carcinogenic chemicals in the procedure. Wide-scale testing ...

By Nicole Anderson | Fact Sheet

Endophyte Toxins in Grass and Other Feed Sources: Risks to Livestock

Nov 2016
Many varieties of tall fescue and perennial ryegrass are infected with a fungal endophyte. Endophytes produce bioactive compounds that, while beneficial to the host plants, can be toxic to livestock that consume them. This publication explains what an endophyte is, describes livestock health problems associated with endophytes, outlines research on toxicity levels, and provides information on safe forage and feed management and endophyte testing services.

By Gene Pirelli, Nicole Anderson | OSU Extension Catalog

Tall Fescue Grown for Seed: A Nutrient Management Guide for Western Oregon

Sep 2014
This guide covers key nutrient management topics related to tall fescue grown for seed in western Oregon. Crop growth and timing of nutrient uptake is covered. Specific recommendations for nitrogen, phosphorous, potassium, sulfur, and soil pH provided. A number of appendices address micronutrients, and other research projects that are relevant to the reader audience.

By Nicole Anderson | OSU Extension Catalog

Perennial Ryegrass Grown For Seed (Western Oregon) Nutrient Management Guide

Nov 2013
This guide provides nutrient and lime recommendations for establishment of turf and forage perennial ryegrass grown for seed in western Oregon. Healthy plants with adequate root systems are required to obtain the greatest return from your fertilizer investment. The nutrient recommendations in this guide assume that adequate control of weeds, insects, and diseases is achieved. Lack of pest control cannot be overcome by the addition of nutrients.

By Cynthia Ocamb, Nicole Anderson | OSU Extension Catalog

Soil Acidity in Oregon: Understanding and Using Concepts for Crop Production

Jul 2013
Soil acidity, expressed by low soil pH, causes reduced crop growth and significant economic loss. It is the most commonly overlooked and poorly understood yield-limiting factor in western Oregon and a developing concern in eastern Oregon. This publication describes the concept of soil acidity and the limitations it causes for crop production.

By Dan Sullivan, Andy Hulting, Nicole Anderson | OSU Extension Catalog

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