Nitrogen and potassium fertilization effects on yield and quality of burley tobacco

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dc.contributor.authorEvanylo, Gregory K.en
dc.contributor.authorSims, J. L.en
dc.contributor.departmentSchool of Plant and Environmental Sciencesen
dc.date.accessioned2016-12-06T21:00:56Zen
dc.date.available2016-12-06T21:00:56Zen
dc.date.issued1987en
dc.description.abstractField studies were conducted in 1983 and 1984 at Lexington, KY to examine the effects of N and K fertilizer on yield and chemical quality of burley tobacco (Nicotiana tabacum L. cv. Ky 14). Treatments included: NH<sub>4</sub>NO<sub>3</sub> at rates of 112, 280, and 448 kg N ha<sup>-1</sup>; and two sources (K<sub>2</sub>SO<sub>4</sub> and KC1), each at rates of 0, 112, 224, and 448 kg K ha<sup>-1</sup>. The following agronomic and chemical characteristics were examined: yield, price, leaf N, P, K, Ca, Mg, Cl, Mo, total alkaloid, and solanesol concentrations. Cured leaf yield, price, and solanesol concentration were strongly influenced by N X K interactions. Each was raised by increasing N rates when no K was applied; however, at higher K levels, increasing N rates resulted in smaller price increases, no yield changes, and reductions in solanesol concentrations. Reductions in cured leaf Mo concentration relative to N, K, and Mg levels with increasing K fertilization beyond 0 kg ha<sup>-1</sup> were exaggerated as N rates were raised. No effect of N rates on total alkaloids or solanesol concentrations were noted while increased K rates increased concentrations of both. Greater cured leaf yields and Mo concentrations were achieved with KC1 than with K<sub>2</sub>SO<sub>4</sub>. The positive effect of KC1 on Mo concentration at low N application rates was reduced by increased N fertilization suggesting that Mo uptake was enhanced by Cl<sup>_</sup> but reversed at high levels of NO<sup>_</sup><sub>3</sub> application.en
dc.description.versionPublished versionen
dc.format.extent1536 - 1536 (1540) page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/73571en
dc.identifier.volume51en
dc.language.isoenen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleNitrogen and potassium fertilization effects on yield and quality of burley tobaccoen
dc.title.serialSoil Science Society of America Journalen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Facultyen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Crop & Soil Environmental Scienceen
pubs.organisational-group/Virginia Tech/All T&R Facultyen

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