Which test is best? : customizing dairy manure nutrient testing [1997]

Both laboratory analyses and on-farm quick tests of manure nutrient content play an important role in manure management. Laboratory testing is the most reliable method of manure nutrient testing and is valuable for long-term planning and as a check on quick test results.Declared out of print July 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo

Cómo evaluar y reducir el peligro del plomo en los huertos y jardines

En los niños, el plomo puede causar daño cerebral. Por eso puede ser que no haya ningún síntoma inmediato después de la exposición del niño al plomo; los efectos pueden tardar años en aparecer. Los niños de entre 6 meses a 6 años de edad corren el mayor riesgo. En los adultos, el plomo puede dañar el corazón, los riñones, los órganos reproductivos y los sistemas de nervios y sangre. Si usted sospecha problemas de salud relacionados con el plomo, hable con su médico. El departamento de salud local o el Departamento de Servicios Humanos de Oregon también puede ayudarle a evaluar y resolver problemas.Published August 2008. Reviewed July 2013. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo

Estimating plant-available nitrogen release from cover crops

This publication assists western Oregon farmers and agricultural professionals in determining the nitrogen fertilizer replacement value of winter cover crops. Includes information on plant-available nitrogen (PAN) basics; a site-specific, step-by-step method to estimate PAN; Willamette Valley case studies; and appendices summarizing Willamette Valley cover crop research that supports these PAN estimates.Published November 2012. Reviewed October 2016. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: cereal cover crop, cover crop, legume cover cro

Agricultural composting and water quality

This publication addresses factors that farmers must consider when planning an on-farm composting enterprise: the composting process and its impact on water quality, site selection, facility layout and design, composting methods, and managing water and leachate. The content pertains to small and medium-size on-farm composting enterprises that handle about 100 to 5,000 tons of raw organic material per year.Published June 2013. Reviewed June 2017. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: runoff and leachate, agricultural composting, compost site selection, composting and water quality, compost cycle, composting methods, Oregon composting rule

Mulching woody ornamentals with organic materials

A wide variety of materials are sold as mulches and used in landscapes. This publication discusses mulching woody ornamentals (trees and shrubs) with organic materials. It covers the reasons for mulching, how to apply mulch, and how to maintain its beneficial effects over time. The information is presented in a question-and-answer format. The general principles described here also apply to a wide range of other organic materials. A table is included to help you compare the characteristics of materials used as mulches in western Oregon.Published March 2009. Reviewed December 2013. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo

Eastern Oregon liming guide

Liming is a new practice for the inland Pacific Northwest, necessitated by soil acidification caused by nitrogen fertilization. This publication provides guidance on how to evaluate cropping systems for lime need and how to determine lime application rate.Published May 2013. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: lime application, soil acidification, lime, eastern Oregon crop production, soil p

Vegetable gardening in Oregon

Adjust your garden plan to the amount of land available and the needs of your family.Published August 2005. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo

Applying lime to raise soil pH for crop production (western Oregon)

This publication describes how to estimate lime application rate and lists criteria for choosing liming materials (source), lime application method (placement), and how often to apply lime (frequency).Published May 2013. Reviewed May 2017. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: lime, lime application, soil pH, western Oregon crop production, soil acidificationKeywords: lime, lime application, soil pH, western Oregon crop production, soil acidificatio

Evaluating soil nutrients and pH by depth in situations of limited or no tillage in western Oregon

Many nutrients and lime are not mobile in the soil. When applied to the soil surface without tillage, these materials remain in the top 2 inches, especially in production systems that lack tillage. If a soil sample is taken at a standard 8-inch depth, the top 1 to 2 inches, which have higher nutrient concentrations, will be mixed with the lower 6 to 7 inches, which have lower nutrient concentrations. Surface-applied nutrients that are not mixed will likely not be measured. In addition, continued application of ammonium-N and subsequent nitrification acidifies the surface soil. Therefore, soil collected from several depths should be used to evaluate surface and below-surface conditions.Published October 2010. Reviewed November 2014. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: no-till, soil sampling, soil nutrients, pHKeywords: no-till, soil sampling, soil nutrients, p