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The effect of fertilisation on the performance of Barlinka table grapes on sandy soil, Hex River Valley

dc.contributor.authorSaayman, D.en_ZA
dc.contributor.authorLambrechts, J. J. N.en_ZA
dc.date.accessioned2017-06-09T07:20:30Z
dc.date.available2017-06-09T07:20:30Z
dc.date.issued1995
dc.identifier.citationSaayman, D. & Lambrechts, J. J. N. 1995. The effect of fertilisation on the performance of barlinka table grapes on sandy soil, Hex River Valley. South African Journal of Enology & Viticulture, 16(2):41-49, doi:10.21548/16-2-2273en_ZA
dc.identifier.issn2224-7904 (online)
dc.identifier.issn0253-939X (print)
dc.identifier.otherdoi:10.21548/16-2-2273
dc.identifier.urihttp://hdl.handle.net/10019.1/101732
dc.descriptionCITATION: Saayman, D. & Lambrechts, J. J. N. 1995. The effect of fertilisation on the performance of barlinka table grapes on sandy soil, Hex River Valley. South African Journal of Enology & Viticulture, 16(2):41-49, doi:10.21548/16-2-2273.en_ZA
dc.descriptionThe original publication is available at http://www.journals.ac.za/index.php/sajeven_ZA
dc.description.abstractThe response of Barlinka table grapes on grayish, sandy soil to irrigation-applied N fertilisation levels, patterns of N application, crop load and stock P and K fertilisation, were evaluated over a 12-year period in the Hex River Valley. Under the conditions of the trial, an N level of about 100 kg ha-1 appeared to be optimum for shoot growth and grape quality. Bunch and crop mass benefited from increased N levels, apparently due to better berry set. Increased N levels also appeared to preserve greenness of bunch stems better during cold storage but N levels higher than 105-120 kg ha-' reduced colour and sugar content of berries. Applying 67% of total seasonal N during the pre-bloom to veraison period and the rest after harvest, as against a 50:50 distribution, had a slight, positive effect on shoot growth and bunch size, again apparently caused by better berry set. Indications of a small, positive response of shoot growth to stock P fertilisation were obtained. Potassium applied in this manner was found to be ineffective due to leaching and regular irrigation-applied K fertilisation had to be adopted. Increased crop load had a marked negative effect on shoot growth and grape quality, in the latter case comparable in magnitude to that of too high N levels. A balanced crop load of 22 bunches per vine with a shoot mass of 1,822 kg, was calculated for this trial, but a crop load of 18-19 bunches per vine appeared to be the maximum that still ensured the best quality.en_ZA
dc.description.urihttp://www.journals.ac.za/index.php/sajev/article/view/2273
dc.format.extent9 pages : illustrationsen_ZA
dc.language.isoen_ZAen_ZA
dc.publisherSouth African Society for Enology and Viticultureen_ZA
dc.subjectWine and wine making -- South Africa -- Hex River Valleyen_ZA
dc.subjectGrapes -- Fertilizersen_ZA
dc.subjectGrapes -- Effect of minerals onen_ZA
dc.titleThe effect of fertilisation on the performance of Barlinka table grapes on sandy soil, Hex River Valleyen_ZA
dc.typeArticleen_ZA
dc.description.versionPublisher's versionen_ZA
dc.rights.holderSouth African Society for Enology and Viticultureen_ZA


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