Search for: [Subject and Keywords = meadows] OR [Subject and Keywords = soils] OR [Subject and Keywords = research] OR [Subject and Keywords = Poland] OR [Subject and Keywords = primary productivity] OR [Subject and Keywords = Łąki \-\- badania \-\- Polska] OR [Subject and Keywords = Gleby \-\- badania \-\- Polska] OR [Subject and Keywords = Produkcja pierwotna \(biologia\)] OR [Title = Productivity investigation of two types of meadows in the Vistula valley. 2, Soil conditions] OR [Creator = Czerwiński, Zbigniew]