THE EFFECT OF SLUDGE COMPOST ON THE CONTENT OF SELECTED ELEMENTS IN SOIL AND IN LOLIUM MULTIFLORUM LAM.
Journal Title: Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica - Year 2016, Vol 39, Issue 328
Abstract
The aim of the paper, based on a two-year experiment set up in autumn 2012, is to assess the effects of different doses of municipal sewage sludge compost mixed with wheat straw on the content of selected chemical elements in Lolium multiflorum Lam. and in soil. The experimental design consisted of a control plot, a plot with NPK fertiliser and three plots with three different doses of municipal sewage sludge compost (5, 10 and 15 Mg of fresh matter · ha–1). During 2013 and 2014 seasons the grass was cut three times a year, after about a 30-day growing period. The content of Fe, Mn, Mo, Cr and Li in the soil and in the plant material, after dry mineralisation, was measured with the ICP-AES method. Compared to the control and to the plot treated with NPK fertilizer, compost made with sewage sludge and wheat straw significantly increased Fe, Mn, Mo, Cr and Li content in plants and in soil. The biggest amounts of those elements, with the exception of Mn, were found in Italian ryegrass with the mid dose of compost (10 Mg · ha–1). In the soil the highest dose of compost (15 Mg · ha-1) increased the content of Fe, Mo and Cr most, while the greatest amounts of Mn and Li were in the soil with the mid dose (10 Mg · ha–1).
Authors and Affiliations
Elżbieta MALINOWSKA
Keywords
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