Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Gondek K. , Filipek-Mazur B. 2001. AGRICULTURAL USABILITY OF SEWAGE SLUDGE AND VERMICOMPOST OF TANNERY ORIGIN, EJPAU 4(2), #01.
Available Online: http://www.ejpau.media.pl/volume4/issue2/environment/abs-01.html

ABSTRACT

Sludge and vermicompost of organic origin were examined in a field experiment aimed at determining their suitability as soil fertilisers. The experiment was performed in three consecutive years (1996-98) on the sludge originating from a biological and chemical tannery sewage treatment plant and vermicompost based on the sewage sludge to which fruit tree leaves and wheat straw were added. Comparison to the farmyard manure proved that higher abundance of organic matter, nitrogen, calcium and sodium was found for both untreated tannery sludge and sludge composted by Eisenia fetida; the content of potassium was, however, much lower while phosphorus and magnesium were found in the amounts similar to farmyard manure. Contamination with heavy metals, apart from chromium, remained within the acceptable limits. The yield forming effects of the untreated biological sludge and vermicomposts were equal to the ones obtained for the mineral treatment, whereas chemical sludge gave results similar t

Key words: sewage sludge, vermicompost, yield, macroelements, heavy metals.

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