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Creator:: Marx, E. S., Hart, John M. (John Mervyn), 1947-, Stevens, Robert G., and Oregon State University. Extension Service
Abstract:: Regular soil testing is an important element in nutrient management. You can use soil tests as a diagnostic tool or to identify trends through time.
Resource Type:: Technical Report
Full Text:: scientist, Oregon State University; and Bob Stevens, Extension soil scientist, Washington State University

Creator:: Oregon State University. Extension Service, Horneck, Donald Arthur, Hart, John M. (John Mervyn), 1947-, Stevens, R., Petrie, S., and Altland, James Elmer, 1973-
Abstract:: Soil acidification sometimes is necessary for optimum plant growth west of the Cascade Mountain Range. Commercial producers of blueberries, azaleas, rhododendrons, and other ornamentals may need to reduce soil pH for optimum production. Soil acidification is best performed prior to planting; it is much more difficult in established plantings. No...
Resource Type:: Technical Report
Full Text:: , Oregon State University; Robert Stevens, Extension soil scientist, Washington State University; Steven

Creator:: Oregon State University. Extension Service, Hart, John M. (John Mervyn), 1947-, Horneck, D., Stevens, R., Bell, Neil (Neil Charles), 1961-, and Cogger, Craig George, 1950-
Abstract:: Rhododendrons and blueberries are popular plants in home gardens in western Oregon and Washington. Both are easy to grow in most gardens, but problems with growth can occur if the soil is not sufficiently acidic. Even in the naturally acidic soil west of the Cascade Mountains, soil often is not...
Resource Type:: Technical Report
Full Text:: counties, Oregon State University; Robert Stevens, Extension soil scientist, Washington State University

Creator:: Oregon State University. Extension Service and Sullivan, Dan M. (Dan Matthew), 1954-
Abstract:: Nutrient management plans for crops require estimates of plant-available nitrogen (PAN) provided by application of manure or compost. Recent developments have stimulated interest in utilizing manure nitrogen (N) as a resource. These factors include the following: • Increased cost of N fertilizers • Increased value of PAN from manure on...
Resource Type:: Technical Report
Full Text:: Prepared by Dan M. Sullivan, Extension soil scientist, Oregon State University. Archival copy. For current

Creator:: Sullivan, Dan M. (Dan Matthew), 1954-, Andrews, N. (Nick), and Oregon State University. Extension Service
Abstract:: 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...
Resource Type:: Technical Report
Full Text:: Oregon and Washington. A Pacific Northwest Extension Publication Oregon State University • Washington

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