. "The effects of leonardites, solid and liquid potassium humates on microbial characteristics, K2SO4-extractable carbon, available heavy metal contents and pH were studied in incubation experiments using long-term contaminated arable and grassland soils from the vicinity of the Pribram lead smelter. The addition of humates increased soil microbial biomasses, K2SO4-extractable carbon contents and pH in the arable soil. An increase of microbial biomass C in a grassland soil over the control soil after addition of humates was observed even after two month of incubation. The concentrations of easily available metal decreased in variants treated with humates. An increase of EDTA-extractable metals was obtained during the first 10 days of incubation in the control soil and in variants treated with humates. The leonardite treatment sharply decreased soil pH and the microbial activities in soils and it increased available metal fractions extracted with NH4NO3. The subsequent incubation of preceding soil varian"@en . . "Microbial activities and heavy metal availability following the treatment of long heavy metal contaminated soils with humates and lucerne" . . . "Czech Republic, Prague, Crop Research Institute" . "The effects of leonardites, solid and liquid potassium humates on microbial characteristics, K2SO4-extractable carbon, available heavy metal contents and pH were studied in incubation experiments using long-term contaminated arable and grassland soils from the vicinity of the Pribram lead smelter. The addition of humates increased soil microbial biomasses, K2SO4-extractable carbon contents and pH in the arable soil. An increase of microbial biomass C in a grassland soil over the control soil after addition of humates was observed even after two month of incubation. The concentrations of easily available metal decreased in variants treated with humates. An increase of EDTA-extractable metals was obtained during the first 10 days of incubation in the control soil and in variants treated with humates. The leonardite treatment sharply decreased soil pH and the microbial activities in soils and it increased available metal fractions extracted with NH4NO3. The subsequent incubation of preceding soil varian" . . . "10"^^ . "110;119" . "M\u00FChlbachov\u00E1, Gabriela" . "Microbial activities and heavy metal availability following the treatment of long heavy metal contaminated soils with humates and lucerne"@en . "[AE38D82568F2]" . "\u010Cesk\u00E1 zem\u011Bd\u011Blsk\u00E1 univerzita v Praze" . . . . "Praha" . "978-80-213-1721-5" . "V dlouhodob\u011B kontaminovan\u00FDch p\u016Fd\u00E1ch z bl\u00EDzkosti Kovohut\u011B P\u0159\u00EDbram, a.s. n\u00E1stupnick\u00E1 byl sledov\u00E1n vliv p\u0159\u00EDdavku oxyhumolit\u016F, pevn\u00FDch a kapaln\u00FDch hum\u00E1t\u016F na mikrobi\u00E1ln\u00ED charakteristiky, uhl\u00EDk extrahovateln\u00FD K2SO4, p\u0159ijateln\u00E9 obsahy rizikov\u00FDch prvk\u016F a pH. P\u0159\u00EDdavek hum\u00E1t\u016F do orn\u00E9 p\u016Fdy zvy\u0161oval obsahy mikrobi\u00E1ln\u00ED biomasy, uhl\u00EDk extrahovateln\u00FD K2SO4 a pH. Zv\u00FD\u0161en\u00ED obsahu mikrobi\u00E1ln\u00ED biomasy v trvale zatravn\u011Bn\u00E9 p\u016Fd\u011B bylo pozorov\u00E1no a\u017E po dvou m\u011Bs\u00EDc\u00EDch inkubace. Koncentrace rizikov\u00FDch prvk\u016F se sni\u017Eovaly ve variant\u00E1ch s p\u0159\u00EDdavkem hum\u00E1t\u016F. Bylo pozorov\u00E1no zv\u00FD\u0161en\u00ED koncentrac\u00ED n\u011Bkter\u00FDch organicky frakc\u00ED rizikov\u00FDch prvk\u016F p\u0159i extrakci s EDTA. P\u0159\u00EDdavek oxyhumolit\u016F sni\u017Eoval pH i mikrobi\u00E1ln\u00ED activity v p\u016Fd\u011B, naopak se zv\u00FD\u0161ila extrahovatelnost mobiln\u00EDch frakc\u00ED rizikov\u00FDch prvk\u016F. N\u00E1sledn\u00E1 inkubace p\u016Fd s p\u0159\u00EDdavkem vojt\u011B\u0161ky zv\u00FD\u0161ila mikrobi\u00E1ln\u00ED activity v p\u016Fd\u00E1ch, sn\u00ED\u017Eila extrahovatelnost mobiln\u00EDch frakc\u00ED rizikov\u00FDch prvk\u016F ve variant\u00E1ch s oxyhumolitem i v kontroln\u00ED p\u016Fd\u011B. Ur\u010Dit\u00FD n\u00E1r\u016Fst koncentrac\u00ED mobiln\u00EDch i organicky v\u00E1zan\u00FDch f"@cs . "RIV/00027006:_____/07:2331" . . . "Mikrobi\u00E1ln\u00ED aktivity a p\u0159ijatelnost rizikov\u00FDch prvk\u016F po p\u0159\u00EDdavku hum\u00E1t\u016F a vojt\u011B\u0161ky do dlouhodob\u011B kontaminovan\u00FDch p\u016Fd"@cs . "Z(MZE0002700601)" . . "Microbial activities and heavy metal availability following the treatment of long heavy metal contaminated soils with humates and lucerne"@en . . "RIV/00027006:_____/07:2331!RIV08-MZE-00027006" . "433683" . "1"^^ . "Microbial activities and heavy metal availability following the treatment of long heavy metal contaminated soils with humates and lucerne" . . "Practical Solutions for Managing Optimum C and N Content in Agricultural Soils IV" . "2007-06-20+02:00"^^ . . "soil; heavy metal contamination; humates; microbial activities"@en . "1"^^ . . "Mikrobi\u00E1ln\u00ED aktivity a p\u0159ijatelnost rizikov\u00FDch prvk\u016F po p\u0159\u00EDdavku hum\u00E1t\u016F a vojt\u011B\u0161ky do dlouhodob\u011B kontaminovan\u00FDch p\u016Fd"@cs . .