References
- Kabata-Pendias , A. and Pendias , H. 1999 . Biogeochemistry of Trace Elements , Warsaw : PWN . (in Polish)
- Stadlober , M. , Sager , M. and Irgolic , K. J. 2001 . Effects of selenate supplemented fertilisation on the selenium level of cereals – identification and quantification of selenium compounds by HPLC-ICP-MS . Food Chem. , 73 : 357 – 366 .
- Hartikainen , H. 2005 . Biogeochemistry of selenium and its impact on food chain quality and human health . J. Trace Elem. Med. Biol. , 18 : 309 – 318 .
- White , A. F. and Dubrovsky , N. M. 1994 . “ Chemical oxidation–reduction controls on selenium mobility in groundwater systems ” . In Selenium in the Environment , Edited by: Frankenberger , W. T. Jr and Benson , S. 185 – 221 . New York : Marcel Dekker .
- Roussel-Debet , S. , Deneux-Mustin , S. and Munier-Lamy , C. 2005 . Screening the importance of soil micro-organisms on radionuclides mobility . Radioprotection , 40 : 87 – 91 .
- Nowak , J. , Kaklewski , K. and Klodka , D. 2002 . Influence of various concentration of selenic acid (IV) on the activity of soil enzymes . Sci. Total Environ. , 291 : 105 – 110 .
- Nowak , J. , Kaklewski , K. and Ligocki , M. 2004 . Influence of selenium on oxidoreductive enzymes activity in soil and in plants . Soil Biol. Biochem. , 36 : 1553 – 1558 .
- Watkinson , J. H. 1966 . Fluorometric determination of selenium in biological material with 2,3diaminonaphtalene . Anal. Chem. , 38 : 92 – 97 .
- Casida , L. E. Jr , Klein , D. A. and Santoro , T. 1964 . Soil dehydrogenase activity . Soil Sci. , 98 : 371 – 376 .
- Johnson , J. L. and Temple , K. L. 1964 . Some variables affecting the measurement of catalase activity in soil . Soil Sci. Soc. Am. Proc. , 28 : 207 – 216 .
- Blagojevic , S. , Jakovljevic , B. and Zarkovic , B. 1980 . Influence of long-term fertilization on the selenium content of calcareous chernozem soil . J. Environ. Pathol. Toxicol. Oncol. , 17 ( 3/4 ) : 183 – 187 .
- Mackowiak , Cz. 1994 . The Rules of Slurry Application , Pulawy : IUNG . (in Polish)
- Sager , M. 2007 . Trace and nutrient elements in manure, dung and compost samples in Austria . Soil Biol. Biochem. , 39 ( 6 ) : 1383 – 1390 .
- Gissel-Nielsen , G. , Gupta , U. C. , Lamand , M. and Westermarck , T. 1984 . Selenium in soils and plants and its importance in livestock and human nutrition . Adv. Agron. , 37 : 397 – 461 .
- Aro , A. and Alfthang , G. 1998 . “ Effects of selenium supplementation fertilizers on human nutrition and selenium status ” . In Environmental Chemistry of Selenium , Edited by: Frankenberger , W. T. Jr and Engberg , R. 81 – 97 . New York : Marcel Dekker .
- Wu , L. and Lag , J. 1988 . Selenium in Norwegian farmland soils . Acta Agr. Scand. , 38 : 271 – 276 .
- Borowska , K. 2002 . “ Uptake and accumulation of selenium and sulfur by plants as related to soil factors in Poland ” . In Developments in Soil Science , Edited by: Violante , A. , Huang , P. M. , Bollag , J. M. and Gianfreda , L. 109 – 115 . Amsterdam : Elsevier .
- Wang , M. C. and Chen , H. M. 2003 . Forms and distribution of selenium at different depths and among particle size fractions of three Taiwan soils . Chemosphere , 52 : 585 – 593 .
- Spychaj-Fabisiak , E. and Smolinski , S. 2004 . The effect of different nitrogen fertilization and stimulated acid precipitation on the enzymatic activity of some soils . Ann. UMCS, Sec. E , 59 ( 3 ) : 1415 – 1420 . (in Polish)
- Hadas , A. and Kautsky , L. 1994 . Feather meal, a semi-slow-release nitrogen fertilizer for organic farming . Fertil. Res. , 38 : 165 – 170 .
- Brzezinska , M. , Stepniewska , Z. and Stepniewski , W. 1998 . Oxygen status and dehydrogenase activity . Soil Biol. Biochem. , 30 ( 13 ) : 1783 – 1790 .
- Koper , J. , Piotrowska , A. and Siwik , A. 1999 . The index of soil fertility in a long-term experiment with crop rotation and monoculture . Zesz. Probl. Post. Nauk Roln. , 465 : 461 – 470 .