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Author: Marinova S.

  • CONSERVING OF THE RESOURCES

    ESTABLISHING THE INFLUENCE OF HEAVY METALS IN THE SLUDGE, ON THE YIELD AND QUALITY OF PRODUCTION ON SEVERAL SOIL VARIETIES

    • Marinova S.
    • Aydinalp C.
    Mechanization in agriculture & Conserving of the resources, Vol. 62 (2016), Issue 5, pg(s) 23-25
    • Abstract
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    The aim of this experiment is to determine to what levels of toxic load with heavy metals reached different soil types under varied levels of sludge application. Determine the effects of different toxic loading soil on biomass yield and heavy metals content in crop production. The pot experiments are with two cropsperco(Brassica ssp. spantaula) and rye grass(Loliummultiflorum), in two swaths as an after-effect on the yield on four soil types: Carbonate Fluvisols,Leached Vertisols, Leached Cinnamon Forest and gray Forest.The different percentage of sludge level relative to the weight of soil was tested.

    It was found, that loading of various soils types with sludge up to 10% supported increasing effect of fertilization with sludge in perco and rye grass and to the same extent accumulation of heavy metals in them. Their concentrations, however, do not have phytotoxicity.

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