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Browsing Extension Service -- Miscellaneous / Educational Materials by Subject "Deficiency diseases in plants -- Diagnosis"

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Browsing Extension Service -- Miscellaneous / Educational Materials by Subject "Deficiency diseases in plants -- Diagnosis"

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  • Apples 
    Oregon State University. Extension Service; Righetti, Timothy L.; Wilder, Kris; Stebbins, Robert; Burkhart, David J.; Hart, John (Corvallis, Or. : Extension Service, Oregon State University, 1998-06)
    Observations of annual growth and size and color of leaves and fruit are helpful in determining fertilizer needs. In addition, leaf analysis indicates which elements are present in adequate, deficient, or excessive amou ...

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