Herbigation in a Vineyard: Persistence of Four Pre-emergence Herbicides in a Sandy Loam Soil

  • J.C. Fourie Nietvoorbij Institute for Viticulture and Oenology, Stellenbosch
DOI: https://doi.org/10.21548/13-2-2176

Abstract

The persistence of simazine, oxadiazon, napropamide and oryzalin in a sandy loam soil was monitored over a period of 60 days by means of a bio-assay. Avena saliva L (oat) [oxadiazon and oryzalin] and Hordeum vulgare L. (barley) [simazine and napropamide] were used in the bio-assay. Sixty days after application 12%, 16%, 38% and 76% of simazine, oxadiazon, oryzalin and napropamide, respectively, initially present, were detected in the 0-300 mm soil layer, the latter herbicide being the most persistent. Migration, to a greater or lesser extent, could be detected in the case of simazine, oxadiazon and napropamide. Oryzalin was seemingly resistant to leaching. A 20 mm herbigation seemed optimal for oryzalin and napropamide. In the case of oxadiazon and simazine, however, it is suggested that the herbigation volume should be reduced to 15 mm. It was confirmed that the use of wettable powders for herbigation should be avoided and solutions should rather be used. The criteria established for herbigation on a sandy loam soil could be used as a guideline for medium-textured soils.

Downloads

Download data is not yet available.
Published
2017-05-03
Issue
Vol. 13 No. 2 (1992)
Section
Articles

Copyright (c) 2017 South African Society for Enology and Viticulture

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

A copyright form will be e-mailed to the corresponding author when the manuscript has been accepted for publication.

 

In principle, the Author agrees to the following when he/she signes the copyright agreement:

I hereby assign to the SOUTH AFRICAN SOCIETY FOR ENOLOGY AND VITICULTURE (SASEV) the copyright of the text, tables, figures, supplementary material, illustrations and other information (the Material) submitted with the manuscript to be published in SOUTH AFRICAN JOURNAL OF ENOLOGY AND VITICULTURE (SAJEV) (the "Article"). The copyright becomes effective from the date the Article has been accepted for publication in SAJEV.

 

This is an open access journal, and the authors and journal should be properly acknowledged, when works are cited.

Author's may use the publishers version for teaching purposes, in books, theses, dissertations, conferences and conference papers.

A copy of the authors' publishers version may also be hosted on the following websites:

  • Non-commercial personal webpage or blog.
  • Institutional webpage.
  • Authors Institutional Repository.

The following notice should accompany such a posting on the website: This is an electronic version of an article published in SAJEV, Volume XXX, number XXX, pages XXX - XXX, DOI.   Authors should also supply a hyperlink to the original paper or indicate where the original paper (www.journals.ac.za/index.php/sajev/) may be found.

Authors publishers version, affiliated with the Stellenbosch University will be automatically deposited in the University's Institutional Repository SUNScholar.

Articles as a whole, may not be re-published with another journal.

The following license applies:

Attribution CC BY-NC-ND 4.0