Andrzej Lewicki

TL;DR: The addition of biochar increased C- CO2 emission and the total C-CO2 emission were higher about 6.9% and 7.4% for P:S+5%B and P: S+10%B, respectively.

TL;DR: Composting of poultry manure which is high in N and dense in structure can cause several problems including significant N losses in the form of NH3 through volatilization, so amendment of low C/N composting mixtures with biochar at low rates can have a positive effect on composting dynamics.

TL;DR: In this article, the results of research on biogas efficiency of the maize straw silage, the dynamics of the fermentation process and the decomposition time of biomass under the meso-and thermophilic conditions were compared.

TL;DR: In this article, the authors examined and discussed the fertilizing properties of digestate (digested pulp) from three different agricultural biogas plants in terms of the substrates used.

TL;DR: In this paper, the authors investigated the biogas efficiency of the substrates available in PULS experimental farm Przybroda (cattle manure, maize silage) and showed that the most energetic valuable substrate is maize-silage with cumulative biowas yield 218.4m3/Mg FM (almost 3 times more than cattle manure).