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Deficiency diseases in plants -- Diagnosis
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- Creator:
- Righetti, Timothy L., Wilder, Kris, Stebbins, Robert, Burkhart, David J., Hart, John, and Oregon State University. Extension Service
- Abstract:
- 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 amounts. Soil analysis is useful in predicting the need for lime applications. Suspect a nutrient deficiency if poor...
- Resource Type:
- Technical Report
- Full Text:
- in Ore apple orchards. Potassium (K) K deficiency is rare in Oregon apple orchards. Since
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- Creator:
- Olsen, Jeff L. and Oregon State University. Extension Service
- Abstract:
- A comprehensive approach to nutrient management will help you ensure availability of optimum levels of nutrients for tree growth. Components of a comprehensive nutrient management strategy include: • Soil analysis before planting (useful in predicting the need for potassium, magnesium, or lime applications) • Observations of annual shoot growth, leaf...
- Resource Type:
- Technical Report
- Full Text:
- hazelnut orchards. Potassium (K) K deficiency is common in Oregon hazelnut orchards. Fertilize according
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- Creator:
- Christensen, Neil Walter, 1944-
- Abstract:
- The phenomena known as "phosphorus-induced zinc deficiencies" are poorly understood. Conclusions drawn from research efforts designed to identify the mechanism of the phosphorus-zinc interaction are, in many cases, incompatible. Similarities in the data from a number of literature reports of "phosphorus-induced zinc deficiencies" have led to the development of the...
- Resource Type:
- Dissertation
- Full Text:
- levels in plant tissue do not induce a zinc deficiency, but rather are the result of zinc deficiency
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- Creator:
- Oregon State University. Extension Service and Altland, James Elmer, 1973-
- Abstract:
- 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, entire leaves turn chlorotic. Under severe conditions, interveinal necrosis occurs. Chlorotic plants often have reduced height and caliper. The chlorosis is...
- Resource Type:
- Technical Report
- Full Text:
- Managing Manganese Deficiency in Nursery Production of Red Maple
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- Creator:
- Oregon State University. Agricultural Experiment Station, Pumphrey, F. V. (Floyd Vance), and Moore, David Paul, 1931-
- Abstract:
- Published November 1973. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
- Resource Type:
- Technical Report
- Full Text:
- levels of other nutrients in the plants were adequate; therefore, nitrogen deficiency was probably the
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- Creator:
- Hart, John M. (John Mervyn), 1947-, Strik, Bernadine C. (Bernadine Cornelia), 1962-, Rempel, Hannah Gascho, and Oregon State University. Extension Service
- Abstract:
- Несколько видов ягодных культур коммерчески выращивают в штате Орегон, в том числе, летом плодоносящие и плетье-плодоносящие малины (красная и черная) и ежевика то есть ажина. Эта публикация направлена на оценку содержания и внесения питательных веществ, применяющихся в выращивании кустарных ягод в западной части Орегона.
- Resource Type:
- Technical Report
- Full Text:
- ). Pacific Northwest Plant Disease Management Handbook (revised annually). Strick, B.C. 1998. Raspberry
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- Creator:
- Hart, John M. (John Mervyn), 1947-, Strik, Bernadine C. (Bernadine Cornelia), 1962-, and Rempel, Hannah Gascho
- Abstract:
- Several types of caneberries are produced commercially in Oregon, including summer-bearing and primo cane fruiting red raspberries, black raspberries (blackcaps), and blackberries. This publication addresses nutrient assessment and application for caneberries produced in western Oregon. In this area, caneberries typically are planted on Aloha, Jory, Newburg, Willamette, Woodburn, or Saum...
- Resource Type:
- Technical Report
- Full Text:
- be “bio”logically sound and produce a measurable change in plant growth or nutrient status. The