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A phosphorus nutrition study of apples on a volcanic ash soil

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dc.contributor.advisor Stebbins, Robert L.
dc.creator Maul, Jerry Lee
dc.date.accessioned 2011-09-26T16:58:18Z
dc.date.available 2011-09-26T16:58:18Z
dc.date.copyright 1980-02-25
dc.date.issued 1980-02-25
dc.identifier.uri http://hdl.handle.net/1957/23562
dc.description Graduation date: 1980 en_US
dc.description.abstract This study was undertaken in a Red Delicious apple orchard in Oregon's Hood River Valley to determine if low leaf P concentrations were contributing to such observed, orchard disorders as poor shoot growth, shoot dieback and. small fruit size at harvest. Subsurface applications of lime and superphosphate had no effect on leaf P concentration, shoot growth and apple volume. Leaf P concentrations declined slightly (-.01% to -.02%) from 1978 to 1979 while shoot growth decreased (-6.2cm to -9.0cm) and apple volume increased (+31.12cm³ to +39.56cm³). en_US
dc.language.iso en_US en_US
dc.subject.lcsh Volcanic ash, tuff, etc en_US
dc.subject.lcsh Apples en_US
dc.title A phosphorus nutrition study of apples on a volcanic ash soil en_US
dc.type Thesis/Dissertation en_US
dc.degree.name Master of Science (M.S.) in Horticulture en_US
dc.degree.level Master's en_US
dc.degree.discipline Agricultural Sciences en_US
dc.degree.grantor Oregon State University en_US
dc.description.digitization File scanned at 300 ppi (Monochrome) using Scamax Scan+ V. on a Scanmax 412CD by InoTec in PDF format. LuraDocument PDF Compressor V. used for pdf compression and textual OCR. en_US
dc.description.peerreview no en_us

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