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Creator:: Hart, John M. (John Mervyn), 1949-, Sullivan, Dan M. (Dan Matthew), 1954-, Anderson, Nicole P., Hulting, Andrew Gerald, Horneck, Donald Arthur, Christensen, Neil Walter, 1944-, and Oregon State University. Extension Service
Abstract:: 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...
Resource Type:: Technical Report
Full Text:: acidity with lime is discussed in companion publications (page 2). John M. Hart, Extension soil

Creator:: Anderson, Nicole P., Hart, John M. (John Mervyn), 1947-, Sullivan, Dan M. (Dan Matthew), 1954-, Christensen, Neil Walter, 1944-, Horneck, Donald Arthur, Pirelli, Gene J., and Oregon State University. Extension Service
Abstract:: 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).
Resource Type:: Technical Report
Full Text:: as lettuce and arugula. Nicole P. Anderson, field crops Extension agent; John M. Hart, Extension

Creator:: Sullivan, Dan M. (Dan Matthew), 1954-, Horneck, Donald Arthur, Wysocki, Donald John, 1952-, and Oregon State University. Extension Service
Abstract:: 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.
Resource Type:: Technical Report
Full Text:: growth. Aluminum toxicity inhibits root development. Manganese Dan M. Sullivan, Extension soil

Creator:: Affeldt, Richard P., Horneck, Donald Arthur, Walenta, Darrin L., 1968-, Kiemnec, Gary L., Hart, John M. (John Mervyn), 1947-, and Oregon State University. Extension Service
Abstract:: Gives nutrient and lime recommendations for irrigated Kentucky bluegrass in eastern Oregon. Also includes sources of further information.
Resource Type:: Technical Report
Full Text:: , Extension agronomist; Gary L. Kiemnec, soil scientist; and John M. Hart, professor of crop and soil

Creator:: Horneck, Donald Arthur, Sullivan, Dan M. (Dan Matthew), 1954-, Owen, James Stetter, 1975-, Hart, John M. (John Mervyn), 1947-, and Oregon State University. Extension Service
Abstract:: 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,...
Resource Type:: Technical Report
Full Text:: . Prepared by Dan M. Sullivan.) Differing fertilizer recommendation philoso- phies can provide multiple

Creator:: Horneck, Donald Arthur, Hart, John M. (John Mervyn), 1947-, Flowers, Michael Darrell, 1971-, Lutcher, L. K. (Lawrence K.), Wysocki, Donald John, 1952-, Corp, Mary K., Bohle, Mylen G., and Oregon State University. Extension Service
Abstract:: Management recommendations focusing on rate, timing, source and method of nutrient application for irrigated wheat production in eastern Oregon.
Resource Type:: Technical Report
Full Text:: . Hart, M.D. Flowers, L.K. Lutcher, D.J. Wysocki, M.K. Corp, and M. Bohle D.A. Horneck, Extension

Creator:: Anderson, Nicole P., Hart, John M. (John Mervyn), 1947-, Horneck, Donald Arthur, Sullivan, Dan M. (Dan Matthew), 1954-, Christensen, Neil Walter, 1944-, Pirelli, Gene J., and Oregon State University. Extension Service
Abstract:: 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,...
Resource Type:: Technical Report
Full Text:: Nicole P. Anderson, field crops Extension agent; John M. Hart, Extension soil scientist; Donald A

Creator:: Oregon State University. Extension Service, Sullivan, Dan M. (Dan Matthew), 1954-, McQueen, John Paul Gainer, and Horneck, Donald Arthur
Abstract:: Potatoes require adequate nitrogen to produce quality tubers and high yields. Organic farming practices are designed to build soil nutrient levels gradually. In organic systems, nitrogen (N) enters the soil in the form of crop residue and amendments (e.g., manures, composts, and specialty products). Much of the N added to...
Resource Type:: Technical Report
Full Text:: mineralization in supplying plant-available N to organic potatoes. Dan M. Sullivan, Extension soil scientist

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Horneck, Donald Arthur, Ellsworth, Jaon W., Hopkins, Bryan G., Sullivan, Dan M. (Dan Matthew), 1954-, Stevens, Robert G., and Pacific Northwest Cooperative Extension
Abstract:: Accumulation of excessive salt in irrigated soils can reduce crop yields, reduce the effectiveness of irrigation, ruin soil structure, and affect other soil properties. This publication is designed to help you evaluate the kind and amount of salts present in soils and to select management alternatives. This publication describes the...
Resource Type:: Technical Report
Full Text:: . Ellsworth, Wilbur-Ellis Company; Bryan G. Hopkins, soil scientist, Brigham Young University; Dan M

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Horneck, Donald Arthur, Wysocki, Donald John, 1952-, Hopkins, Bryan G., Hart, John M. (John Mervyn), 1947-, Stevens, Robert G., and Pacific Northwest Cooperative Extension
Abstract:: This publication is a technical and practical guide for soil acidification in commercial fields. It explains the soil chemistry involved, how to determine whether pH adjustment is feasible, and methods for acidifying soil. This guide is divided into five sections: • Understanding soil pH • The problem—iron chlorosis • Causes...
Resource Type:: Technical Report
Full Text:: 7 Soil pH So lu tio n Fe (m g/ l) 0.05 0.04 0.03 0.02 0.01 0.00 0.12 0.10 Figure 4.—The

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