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Arhiv za higijenu rada i toksikologiju, Vol. 68 No. 4, 2017.

Izvorni znanstveni članak
https://doi.org/10.1515/aiht-2017-68-3063

Dissipation dynamics of terbuthylazine in soil during the maize growing season

Sanja Stipičević ; Institute for Medical Research and Occupational Health, Zagreb, Croatia
Gordana Mendaš   ORCID icon orcid.org/0000-0002-2661-2465 ; Institute for Medical Research and Occupational Health, Zagreb, Croatia
Marija Dvoršćak ; Institute for Medical Research and Occupational Health, Zagreb, Croatia
Sanja Fingler ; Institute for Medical Research and Occupational Health, Zagreb, Croatia
Natalija Galzina ; Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
Klara Barić ; Faculty of Agriculture, University of Zagreb, Zagreb, Croatia

Puni tekst: engleski, pdf (297 KB) str. 336-342 preuzimanja: 108* citiraj
APA 6th Edition
Stipičević, S., Mendaš, G., Dvoršćak, M., Fingler, S., Galzina, N. i Barić, K. (2017). Dissipation dynamics of terbuthylazine in soil during the maize growing season. Arhiv za higijenu rada i toksikologiju, 68 (4), 336-342. https://doi.org/10.1515/aiht-2017-68-3063
MLA 8th Edition
Stipičević, Sanja, et al. "Dissipation dynamics of terbuthylazine in soil during the maize growing season." Arhiv za higijenu rada i toksikologiju, vol. 68, br. 4, 2017, str. 336-342. https://doi.org/10.1515/aiht-2017-68-3063. Citirano 21.05.2019.
Chicago 17th Edition
Stipičević, Sanja, Gordana Mendaš, Marija Dvoršćak, Sanja Fingler, Natalija Galzina i Klara Barić. "Dissipation dynamics of terbuthylazine in soil during the maize growing season." Arhiv za higijenu rada i toksikologiju 68, br. 4 (2017): 336-342. https://doi.org/10.1515/aiht-2017-68-3063
Harvard
Stipičević, S., et al. (2017). 'Dissipation dynamics of terbuthylazine in soil during the maize growing season', Arhiv za higijenu rada i toksikologiju, 68(4), str. 336-342. doi: https://doi.org/10.1515/aiht-2017-68-3063
Vancouver
Stipičević S, Mendaš G, Dvoršćak M, Fingler S, Galzina N, Barić K. Dissipation dynamics of terbuthylazine in soil during the maize growing season. Arh Hig Rada Toksikol. [Internet]. 2017 [pristupljeno 21.05.2019.];68(4):336-342. doi: https://doi.org/10.1515/aiht-2017-68-3063
IEEE
S. Stipičević, G. Mendaš, M. Dvoršćak, S. Fingler, N. Galzina i K. Barić, "Dissipation dynamics of terbuthylazine in soil during the maize growing season", Arhiv za higijenu rada i toksikologiju, vol.68, br. 4, str. 336-342, 2017. [Online]. doi: https://doi.org/10.1515/aiht-2017-68-3063

Sažetak
Ever since terbuthylazine (TBA) replaced atrazine in herbicide crop treatment, its much greater persistence has raised considerable environmental concern. The aim of our field experiment was to establish the dissipation dynamics of TBA and its degradation product desethylterbuthylazine (DET) in soil over five months of maize growth. We applied TBA as part of pre-emergent treatment in the regular and double-the-regular amounts. Soil samples were collected periodically at the following depths: 0-10 cm, 10-20 cm, 20-30 cm, and 30-50 cm. For TBA and DET soil residue analysis we used microwave-assisted extraction with methanol, followed by HPLC-UV/DAD. Regardless of the application rate, more than 80 % of the applied TBA dissipated from the first 50 cm of soil in the two months after herbicide application and 120 mm of rainfall. Three months later (at maize harvest), less than 4 % of total TBA remained in the soil, mostly in the top 20 cm rich with organic carbon on which TBA is likelier to adsorb. The loss of TBA from soil coincided with the rise in DET, especially the top soil layers, during the periods of low rainfall and highest soil temperatures. This points to biodegradation as the main route of TBA dissipation in humic soils. The applied amount had no significant effect on TBA dissipation in the top (humic) layers, but in the layers with less than 1 % of organic carbon, it was higher when the double-the-regular dose was applied.

Ključne riječi
application rate; desethylterbuthylazine; field conditions; herbicide; persistence

Hrčak ID: 191157

URI
https://hrcak.srce.hr/191157

[hrvatski]

Posjeta: 182 *