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Browsing Extension Service -- Miscellaneous / Educational Materials by Author "Landgren, Chal G."

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Browsing Extension Service -- Miscellaneous / Educational Materials by Author "Landgren, Chal G."

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  • Oregon State University. Extension Service; Hart, John M. (John Mervyn), 1947-; Landgren, Chal G.; Fletcher, Richard A.; Bondi, Michael C.; Whithrow-Robinson, Bradford A.; Chastagner, Gary A. (Corvallis, Or. : Extension Service, Oregon State University, 2009-09)
    "Key points: Nutrient management decisions change with stand age. Before planting, test soil for adequacy of phosphorus, potassium, calcium, magnesium, and lime. After tree height has reached 3 feet, begin a tissue sam ...
  • Oregon State University. Extension Service; Landgren, Chal G.; Ketchum, Lynn (Corvallis, Or. : Extension Service, Oregon State University, 2010-02)
    Learn proven techniques to improve the quantity and quality of your Christmas tree harvest. Aprenda técnicas de eficacia para mejorar la cantidad y calidad de su cosecha de arboles de Navidad.

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