crta
Hrvatska znanstvena Sekcija img
bibliografija
3 gif
 Naslovna
 O projektu
 FAQ
 Kontakt
4 gif
Pregledavanje radova
Jednostavno pretraživanje
Napredno pretraživanje
Skupni podaci
Upis novih radova
Upute
Ispravci prijavljenih radova
Ostale bibliografije
Slični projekti
 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 390320

Zbornik radova

Autori: Broznić, Dalibor; Marinić, Jelena; Tota Marin; Čanadi Jurešić, Gordana; Milin, Čedomila
Naslov: Imidacloprid degradation in Istrian and Kvarner olive orchard soils
( Imidacloprid degradation in Istrian and Kvarner olive orchard soils )
Izvornik: XXI. Hrvatski skup kemičara i kemijskih inženjera – Knjiga sažetaka / Novak, Predrag ; Pičuljan, Katarina ; Smolec, Sonja (ur.). - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa , 2009. 120-120 (ISBN: 978-953-6894-38-3).
Skup: XXI. Hrvatski skup kemičara i kemijskih inženjera
Mjesto i datum: Trogir, Hrvatska, 19-22.04.2009.
Ključne riječi: degradation; imidacloprid; 6-chloronicotinic acid; soil
( degradation; imidacloprid; 6-chloronicotinic acid; soil )
Sažetak:
Neonicotinoids are increasingly replacing the organophosphate and methylcarbamate acetylcholinesterase inhibitors which are losing their effectiveness because of selection for resistant pest populations. Imidacloprid is the most important neonicotinoid with low soil persistence, high insecticidal potency and relatively low mammalian toxicity. In Croatia, imidacloprid is most commonly used in olive growing areas, including Istria and Kvarner islands, as an effective mean of olive fruit fly infestation control. This paper describes degradation processes of imidacloprid and investigates the relationships between soil properties (particle size, organic matter content, acidity) and degradation characteristics in four soils, representative of northern Adriatic region, namely island Krk and a coastal Istrian region. Imidacloprid was tested at two doses: 0.5 and 5 mg/kg for 180 days. Residues of imidacloprid and concentration of 6-chloronicotinic acid (6-CNA), which is a degradation product of imidacloprid, were anlayzed by high performance liquid chromatography (HPLC). High clay and organic carbon content and low soil acidity in Istrian soils accelerate degradation rate of imidacloprid, which is adequately described by a first-order kinetic model. The imidacloprid degradation processes are continuous, though not very rapid, with the organic carbon content, as a dominant factor governing degradation. According to half- life of more than 110 days, imidacloprid can be categorized as persistant pesticide. 6-CNA was detected in all soil samples 30 days after apllication. However, liberate usage of imidacloprid can disturb environmental cycling, adversely affecting non-target organisms, including plant and animal species, and thus imposing a risk to the human health.
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Nema recenziju
Projekt / tema: 062-0621341-0061
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Geologija,Kemija
Upisao u CROSBI: dbroznic@medri.hr (dbroznic@medri.hr), 27. Tra. 2009. u 15:44 sati



Verzija za printanje   za tiskati


upomoc
foot_4