Naslov
Cadmium and zinc accumulation in field crops

Autori
Čoga, Lepomir ; Slunjski, Sanja ; Petek, Marko

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

Izvornik
Vijesti Hrvatskog geološkog društva (časopis) / - , 2009, 20-21

Skup
Radionica bilateralnog međunarodnog proojekta: 'Okolišno-geokemijska istraživanja riječnih sedimenata u području rijeke Drave (Austrija, Slovenija, Hrvatska) na temelju mineraloško-mikrokemijske fazne analize - dopuna metode geokemijskog istraživanja u Hrvatskoj i Sloveniji'

Mjesto i datum
Varaždin, Hrvatska, 06.05.2009. - 07.05.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
cadmium; corn; wheat; winter barley; zinc

Sažetak
Heavy metals are one of the most dangerous environment's contaminants. Pollution sources of heavy metals can be: 'dirty industries’, mines and zinc smeltery, rocks (that soil was made from), blown gasses, tyres and mineral oils, waste mud application, pesticides and uncontrolled phosphorus fertilizers applications. Production of sufficient quantities of high quality and healthy food becomes more complex aim that is imposed on the world agriculture, regard that agriculture itself can contribute to agroecological pollution. The aim of this investigation was to determine effect of Zn fertilization on Cd uptake and translocation in corn, wheat and winter barley on polluted soils. Amounts and types (mg kg-1 soil) of treatments were: Cd0Zn0, Cd2Zn4, Cd2Zn0. Determined fractions were: exchangeable (F1), carbonate (F2), Fe and Mn oxides (F3 and F4) and organic residual (F5). The most Cd content in residual (F5) fraction was determined in natural soils, while in polluted soils the most Cd content was determined in exchangeable (F1) and oxide (F3) fractions. The lowest Cd concentrations in corn root and above ground part and the highest in winter barley were determined. Cd concentrations in corn kernel were 29-254 times lower than in corn root. In wheat kernel Cd concentrations were determined 11-28 times and in winter barely kernel 14-16 times lower than in the roots. Zinc application was significantly influenced on decreasing Cd uptake and translocation from root to above plant parts in investigated field crops because of their antagonism.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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