Improving methods for evaluating potassium availability in vineyard soils

dc.contributor.authorFiola, Jaclyn C.en
dc.contributor.authorStewart, Ryan D.en
dc.contributor.authorEvanylo, Greg K.en
dc.date.accessioned2023-08-11T13:33:12Zen
dc.date.available2023-08-11T13:33:12Zen
dc.date.issued2023-04en
dc.description.abstractVineyard soils often contain mineralogy that can confound predictions of plant-available potassium (K). Too little or too much K uptake into wine-grape (Vitis varieties) tissues can negatively affect fruit chemistry, making it important to have soil tests that accurately quantify plant-available K. Our goal was to determine the best soil sampling, processing, and extraction methods for predicting K availability in vineyard soils. We sampled soil and grapevine tissue in 39 vineyard blocks from 22 vineyards in Virginia, Maryland, and New Jersey. Plant tissue sampling included petioles at bloom and both petioles and leaf blades at veraison. Soil samples were collected from 0 to 10- and 0 to 38-cm depths. We tested three soil extraction methods-Mehlich 1, Mehlich 3, and sodium tetraphenylboron (NaTPB)-on both oven-dried and field-moist samples. The different sampling, processing, and extracting procedures produced distinct K concentrations, with shallow 0-10 cm samples and NaTPB extraction resulting in higher K concentrations than their counterparts. Upon drying, three soils fixed K and 24 samples released K. Whole leaf (petiole plus leaf blade) samples collected at veraison had the best relationships with most soil K concentrations. The best soil testing method for predicting tissue K concentration in whole leaves at veraison was Mehlich 1 extractions of field-moist soils from 0 to 38-cm depth. This sampling combination appears to be best suited for growers to use when assessing K concentrations in vineyard soils.en
dc.description.notesVirginia Wine Boarden
dc.description.sponsorshipVirginia Wine Boarden
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1002/saj2.20522en
dc.identifier.eissn1435-0661en
dc.identifier.issn0361-5995en
dc.identifier.urihttp://hdl.handle.net/10919/116023en
dc.language.isoenen
dc.publisherWileyen
dc.rightsCreative Commons Attribution-NonCommercial 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/en
dc.subjectsoilen
dc.subjectpotassiumen
dc.subjectvineyardsen
dc.titleImproving methods for evaluating potassium availability in vineyard soilsen
dc.title.serialSoil Science Society of America Journalen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Soil Science Soc of Amer J - 2023 - Fiola.pdf
Size:
431.8 KB
Format:
Adobe Portable Document Format
Description:
Published version