Počet záznamů: 1  

Short-term effects of ammonium nitrogen in upland pasture soil affected or not affected by cattle

  1. 1.
    0371279 - BC 2012 RIV NL eng J - Článek v odborném periodiku
    Hynšt, Jaroslav - Šimek, Miloslav
    Short-term effects of ammonium nitrogen in upland pasture soil affected or not affected by cattle.
    Biology and Fertility of Soils. Roč. 48, č. 1 (2012), s. 43-49. ISSN 0178-2762. E-ISSN 1432-0789
    Grant CEP: GA ČR GA526/04/0325; GA MŠMT LC06066; GA AV ČR IAA600660605
    Výzkumný záměr: CEZ:AV0Z60660521
    Klíčová slova: ammonium * nitrification * nitrite
    Kód oboru RIV: EH - Ekologie - společenstva
    Impakt faktor: 2.505, rok: 2012

    The short-term effects of excessive NH4+-N on selected characteristics of soil unaffected (low annual N inputs) and affected (high annual N inputs) by cattle were investigated under laboratory conditions. The major hypothesis tested was that above a theoretical upper limit of NH4+ concentration, an excess of NH4+-N does not further increase NO3- formation rate in the soil, but only supports accumulation of NO2--N and gaseous losses of N as N2O. Soils were amended with 10 to 500 μg NH4+-N g-1 soil. In both soils, addition of NH4+-N increased production of NO3--N until some limit. This limit was higher in cattle-affected soil than in unaffected soil. Production of N2O increased in the whole range of amendments in both soils.
    Trvalý link: http://hdl.handle.net/11104/0204829

     
     
Počet záznamů: 1  

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