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Calderón to direct the Columbia Basin Agricultural Research Center
Calderón, who is fluent in English and Spanish, has more than 20 years of experience and extensive knowledge of soil science and its role in dryland farming.
Soil: The Dirty Secrets of a Living Landscape
Soil is a living ecosystem that includes minerals, air, water, habitat for creatures and the creatures themselves. Soil provides plants with nutrients, water, physical support and air for roots. Soil also houses macro- and ...
Mitigating soil erosion after a fire
Soil erosion following wildfire is a concern for many forest owners. In many instances the site will recover on its own with minimal erosion.
Manure Application Rates for Forage Production
This publication provides estimates of crop removal of nitrogen, phosphorus and potassium for forage crops grown on dairies in western Oregon. It also provides guidance on liquid manure application rates to meet crop nitrogen requirements.
Extension Master Gardeners put their hands in the soil for science
OSU Extension Master Gardeners are taking part in a community science project to understand the the transfer dynamics of soil microbes ot humans in gardening.
Minimum Tillage on Bohlender Farms
Teldon Bohlender speaks about his experiences using minimum tillage on his farm in Malheur County
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, ...
Are there pollution standards for bagged soil?
Q: Bagged garden soils have no information about their source or safety. I recently bought bags (big box store) and am concerned about where the soil was actually mined. There were some weird things included in each of the ...
Estimating soil moisture by feel and appearance
This publication provides direction on estimating soil moisture by the "feel and appearance" method; taking a some soil and rolling it up in a ball then squeezing it between your thumb and forefinger to form a ribbon and noting how it appears and feels. Compare what you see with photographs and/or charts to estimate percent water available and the inches depleted below field capacity.
Selecting successful cover crops for your hop yard
This fact sheet is designed to help guide commercial hop growers in selecting cover crops. The guide discusses pros and cons for four different cover crop strategies: annual fall-planted, annual spring-planted, annual re-seeding and...