emphasises the possibility of processing animal manure into mineral concentrate that could be used to manufacture ‘green fertiliser’ that can reduce and eventually replace the need for mineral fertilisers, in the light of an efficiency level comparable to that of the latter;
poudarja možnost predelave živalskega gnoja v mineralni koncentrat, ki ga je mogoče uporabiti za proizvodnjo zelenih gnojil, s katerimi je mogoče zmanjšati potrebo po mineralnih gnojilih in te navsezadnje nadomestiti, saj so skoraj enako učinkovita;