TY - JOUR N2 - The objective of the study was to compare the impact of three systems of multiannual fertilization applied in two long-term field experiments on the content of phenolic compounds in the soil. In the study, both natural (manure, slurry) and mineral (NPK) fertilizers were used, along with combined, organic-and-mineral fertilization. Experiment I was established in 1972 on grey brown podzolic soil; experiment II, in 1973 on brown soil. In both experiments crops were cultivated in a 7-year rotation, with a 75% share of cereals. The experimental samples were taken from the top layer of soil after 36 (experiment I) and 35 (experiment II) years following the establishment of the experiments. It was demonstrated that the presence of phenolic compounds in the soils was significantly dependent on the contents of organic C and total N, type of soil and the type and dose of used fertilizers. In grey brown podzolic soil, the content of total phenolic compounds was at a lower level than the content found in brown soil. Multiannual fertilization contributed to an increase in the content of total phenolic compounds in relation to the values obtained in control objects, which was particularly reflected in the soil originating from objects fertilized with slurry applied at a dose being equivalent to manure in terms of the amount of introduced organic carbon. The percentage of water-soluble phenols in the total content of these compounds in grey brown podzolic soil was at the level of 18.4%, while in brown soil it amounted to 29.1%. L1 - http://czasopisma.pan.pl/Content/102420/PDF/aep-2016-0047.pdf L2 - http://czasopisma.pan.pl/Content/102420 PY - 2016 IS - No 4 DO - 10.1515/aep-2016-0047 KW - phenolic compounds KW - soil KW - long-term experiments KW - fertilization KW - FYM KW - slurry A1 - Sądej, Wiera A1 - Żołnowski, Andrzej Cezary A1 - Marczuk, Olga PB - Polish Academy of Sciences VL - vol. 42 DA - 2016.12.15 T1 - Content of phenolic compounds in soils originating from two long-term fertilization experiments UR - http://czasopisma.pan.pl/dlibra/publication/edition/102420 T2 - Archives of Environmental Protection ER -