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Chicken manure is one of the massively produced wastes in the agriculture, and pyrolysis may be a good way of its treatment. Biochar obtained in the process of pyrolysis may be used as soil fertilizer since it improves soil water and air balance, stabilizes pH, provides plants and soil microbiota with nutrients. In the present study, chicken manure with sawdust was pyrolyzed at 400 ?C (residence time 2 h), and biochar obtained was added to soil in a dose of 30 t ha-1 in a field experiment. Wheat was planted in the...