DOI: 10.5593/SGEM2015/B32/S13.049


Igaz D., Horak J., Domanova J.
Thursday 24 September 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-37-7 / ISSN 1314-2704, June 18-24, 2015, Book3 Vol. 2, 363-370 pp

The main objective of this paper was to study the effect of biochar on the soil hydrophysical properties (pF curves, soil porosity). Biochar (black carbon) refers to the aromatic carbon materials produced by pyrolysis of biomass (heating in an oxygen-limited environment at temperatures 400-900°C). Biochar used for the field experiment was produced from paper fiber sludge and grain husks (1:1 w/w) by pyrolysis at 550°C for 30 minutes. The field study was conducted at the experimental site in Nitra region Slovakia (lat. 48°19´00´´, lon. 18°09´00´´). The biochar was incorporated into the soil (0-10 cm) before sowing the spring barley (Hordeum vulgare L.) in spring 2014. The experiment consisted of 3 levels of biochar application 0, 10 and 20 t/ha (BC0, BC10, BC20) with 3 replicates to a loamy soil of 9 experimental plots (6x4m). The soil samples (3 replicates) were taken 53 days after biochar application from each experimental plot from the soil depth of 5-10 cm. On the other hand, the higher level of biochar application (20 t/ha) did not show any effect. The increase of soil porosity in both biochar treatments (BC10, BC20) was also observed.

Keywords: biochar, soil water characteristics, pF curves

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