Naslov
Triazine herbicides in drained soils and water in the part of river Drava catchment area

Autori
Vidaček, Željko ; Bogunović, Matko ; Sraka, Mario ; Husnjak, Stjepan, Mihalić, Aleksandra

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Summaries Volume II / G. Pedro, A. Ruellan - Montpellier : ISSS and AFES, 1998, 490-490

Skup
16th World Congress of Soil Science

Mjesto i datum
Montpellier, Francuska, 20.08.1998. - 26.08.1998

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
triazine herbicides; drained soil; water; monigoring

Sažetak
Five-years observation of functioning and effects of pipe drainage in the valley of river Drava-affluent of Danube, on a part of the Karašica and Vučica catchment area, included investigations of the status of triazine herbicides atrazine and simazine in drained amphigley of trial field Kapelna and drained nonsalinated alkaline soil of trial field Suvar. The status of atrazine and simazine was also controlled in drain, surface and ground water. During investigations, protection of maize with Radazin was carried out only on the trial field Suvar 1993. in amount of 1.5 l/ha. In plough layer of drained amphigley of trial field Kapelna maximum amounts of residues of atrazine, applied before 1992. were 18 ng/g and of simazine 108 ng/g, while in surface layer of nonsalinated alkaline soil of trial fields Suvar these values were reached maximum of 119 ng/g for atrazine and 95 ng/g fro simazine. Maximum concentration of atrazine in surface water of wider catchment area was 2,86 microgram/l, and fdor simazine 0,33 microgram/l. Concentrations of atrazine in shallow ground water at 1-2 m depth of drained amphigley were to 6,45 microgram/l and for simazine to 1,77 microgram/l, while for shallower ground water of nonsalinated alkaline soil determined maximum concentration of atrazine was 38,57 microgram/l and for simazine 1,06 microgram/l. In deeper ground water of loess aquifer at depth of about 5 m on wider catchment area was registered to 4,97 microgram/l of atrazine and to 0,35 microgram/l of simazine. In drain water of drained amphigley and nonsalinated alkaline soil with depth of drain 1,0 to 2,5 m were to 0,03 microgram/l of atrazine, while concentrations of simazine were below detection limits. Considering maximum allowable concentrations for investigated herbicides in drinking water (less than 0,1 microgram/l for single herbicides according to Croatian legislation) and determined concentrations in our investigations, obviously in the future we should pay more attention to their origin and concentration in soil and water.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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