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Browsing Extension Service -- Miscellaneous / Educational Materials by Author "Altland, James Elmer, 1973-"

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Browsing Extension Service -- Miscellaneous / Educational Materials by Author "Altland, James Elmer, 1973-"

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  • Oregon State University. Extension Service; Horneck, Donald Arthur; Hart, John M. (John Mervyn), 1947-; Stevens, R.; Petrie, S.; Altland, James Elmer, 1973- (Corvallis, Or. : Extension Service, Oregon State University, 2004-02)
    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 ...
  • Oregon State University. Extension Service; Altland, James Elmer, 1973- (Corvallis, Or. : Extension Service, Oregon State University, 2006-03)
    Field-grown red maple (Acerrubrum) trees often develop foliar chlorosis during mid- to late summer. Initially, the condition appears as mild interveinal chlorosis in newly developing foliage. As symptoms intensify, entir ...
  • Oregon State University. Extension Service; Altland, James Elmer, 1973- (Corvallis, Or. : Extension Service, Oregon State University, 2003-04)
    Weeds compete with commercial crops for nutrients, water, and light. Competition from weeds is particularly important in container crops due to the crops’ limited root volume. Weeds also harbor insects, disease organisms ...
  • Oregon State University. Extension Service; Altland, James Elmer, 1973- (Corvallis, Or. : Extension Service, Oregon State University, 2005-11)
    Weeds reduce the value of nursery crops. They compete with crops for nutrients, light, and water. Some vine weeds climb nursery crops, requiring excessive labor for hand removal. Most serious are perennial weeds, which c ...

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