Naslov
Selenium concentration in main soil types of Slavonija and Baranja County

Autori
Ivezić, Vladimir ; Lončarić, Zdenko ; Singh, Bal RAm ; Almås, Åsgeir Rossebø

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

Izvornik
Zbornik sažetaka 48. hrvatskog i 8. međunarodnog simpozija agronoma / Marić, Sonja ; Lončarić, Zdenko - Osijek : Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2013, 6-6

ISBN
978-953-7871-07-9

Skup
48. hrvatski i 8. međunarodni simpozij agronoma

Mjesto i datum
Dubrovnik, Hrvatska, 17.02.2013. - 22.02.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
Osijek-Baranja County ; selenium ; soil

Sažetak
Selenium (Se) is an essential element for humans and animals but not for plants. Nevertheless, plants are the main source of food and fodder, therefore the ability of plant to take up Se from soil plays an important role in human and animal nutrition. The bioavailability of Se depends on the plant itself as well as on the concentration of Se in soil. The aim of the present study was to investigate Se concentrations in three main soil types of the main agricultural region of Croatia (Osijek-Baranja County). Forty-six soil samples were collected from agricultural and forest soils (Haplic gleysols (n=18), Stagnosols (n=12) and Luvisols (n=16)) and digested by HNO3 for determination of total Se. Haplic gleysols showed significantly (p˂0.001) higher average concentrations of total Se (538 μg/kg) from Luvisols (323 μg/kg) and Stagnosols (314 μg/kg). Higher concentrations might be related to soil organic carbon (SOC) and total nitrogen (N) as Haplic gleysols also showed significantly (p˂0.001) higher percentage of SOC and N from other two soil types. The results of Se concentrations are somewhat higher than the concentrations that can be found in literature regarding Se in soils of Croatia (Požeška kotlina (20-48 μg/kg) ; Podravina (50-280 μg/kg) ; Koprivnica (145-333 μg/kg)). Such higher values in the present study could be related to different extraction method. However, these higher concentrations are still relatively low as most soils contain 100 – 2000 μg/kg. In a nutshell, further research in Se bioavailability is necessary in order to better understand Se uptake.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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