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The paper is focused on the effect of biochar amendment on the soil water content. 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) in spring 2014. The plots (4m x 6m) were organized in randomized block design. The experiment consisted of 5 levels of biochar a...