Browsing by Author "Pietrzak, Stefan"
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Item Dissolvable organic carbon in groundwater as an indicator of its contamination as a result of many years of on-ground storage of manure(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach, 2011) Urbaniak, Marek; Pietrzak, StefanItem NITRATES IN GROUNDWATER IN THE AREAS OCCUPIED BY GRASSLAND IN POLAND(Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy w Puławach, 2012) Pietrzak, Stefan