Estimation of net nitrification in mountain soils

0206383 - UPB-H 20023027 RIV CZ eng J - Článek v odborném periodiku
Šantrůčková, Hana - Grund, M. - Picek, T. - Šimek, Miloslav
Estimation of net nitrification in mountain soils.
Silva Gabreta. Roč. 7, - (2001), s. 79-86. ISSN 1211-7420
Grant CEP: GA ČR GA206/99/1410; GA ČR GA526/01/1055
Grant ostatní: EMERGE(XE) EVK1-CT-1999-00032
Výzkumný záměr: CEZ:AV0Z6066911
Klíčová slova: catchment * method
Kód oboru RIV: EH - Ekologie - společenstva

The method of measuring nitrification rate in grassland and acid forest soils of the mountain ecosystems, which would facilitate comparison of different soils, was evaluated. It is recommended to sample soil for analysing in early spring, when the moisture is not limiting microbial activity, and to store homogenised samples for 3-4 weeks at 4°C before the measurements to relieve the effect of soil sampling. Then the soil should be incubated without addition of N substrate at temperature below 20°C to avoid inhibition of nitrification rate. The measurement of net nitrification in the soil between the 1st and 3rd week of incubation appears to be the most appropriate as the possible effect of both soil handling at the beginning of incubation and artefacts caused by a too long incubation period are excluded.
Trvalý link: http://hdl.handle.net/11104/0101977