Laboratory soil tests help you develop and maintain more productive soil and increase crop production by providing information on the available nutrient content of your soil. Soil testing helps you select the correct kind and amount of fertilizer and liming material. Recommendations are based on the results of fertilizer experiments,...
Whole ecosystem carbon dioxide (CO₂) exchange estimated with the eddy covariance (EC) technique has been central to studies on the responses of terrestrial ecosystems to disturbance and intra‐annual and interannual variations in climate, but challenges exist in understanding and reducing the uncertainty in estimates of net ecosystem exchange (NEE) of...
Measuring the flow rate of water is the first step to good water management. All water right holders in the State of Oregon must be able to measure the flow rate of the water being diverted.
This publication provides an overview of soil testing and general guidelines for interpreting soil test results for nitrogen, phosphorus, sulfur, potassium, calcium, magnesium, boron, zinc, copper, manganese, iron, molybdenum, chloride, sodium, soluble salts, organic matter, cation exchange capacity, pH, and lime. For each test, the document describes what is measured,...
Published March 2008. Reviewed August 2016. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Adequate soil moisture is one of the most important factors in tree growth and production. The amount of irrigation needed varies greatly according to soil type and depth, season, weather, and tree size.
Eastern Oregon’s climate presents special challenges
to home gardeners. A short growing season
and cool nights make it difficult to grow warmseason
crops. Nevertheless, by choosing the right
varieties and providing extra protection to your
plants, you can enjoy a productive and successful
garden.