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vol. 10, nr. 1 (2007)
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Accumulation of heavy metals in oats fertilized with composts
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Krzysztof Gondek
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Department of Agricultural Chemistry, Agricultural University, Al. Mickiewicza 21, 31-120 Kraków |
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vol. 10 (2007), nr. 1,
pp. 89-102
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abstract:
Heavy metals occur in composts in various forms, depending on the properties of the element itself and also on the composted material. Potential of heavy metal uptake by plants and accumulation in tissues vary considerably, therefore the investigations were conducted to present the accumulation of selected heavy metals in oats cultivated in soil supplemented with composts. The total oat yield for three years was the biggest on mineral salts treatment. Amounts of studied heavy metals brought into the soil with organic fertilizers were small and except for cadmium did not cause excessive accumulation of these elements in oat aerial parts. Heavy metals were accumulated in the root system. The highest values of contamination degree index in grain were registered for chromium and lead, and in straw additionally for nickel. Obtained values exceeding one show greater accumulation of these elements in biomass of plants receiving organic fertilization than in those fertilized with mineral salts. Values of translocation index were the smallest for chromium and lead.
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keywords:
fertilization, compost, heavy metals, accumulation, oat
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original in:
Polish
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