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Medientyp:
E-Artikel
Titel:
Soil Microbial Activities in Luvisols and Anthrosols during 9 Years of Region-Typical Tillage and Fertilisation Practices in Northern Germany
Beteiligte:
Dilly, Oliver;
Blume, Hans-Peter;
Munch, Jean Charles
Erschienen:
Kluwer Academic Publishers, 2003
Erschienen in:
Biogeochemistry, 65 (2003) 3, Seite 319-339
Sprache:
Englisch
ISSN:
1573-515X;
0168-2563
Entstehung:
Anmerkungen:
Beschreibung:
In order to evaluate soil functions of contemporary agricultural management practices, the adjustment of microbial biomass and C and N mineralisation capacities was monitored during 9 years following the implementation of conventional and reduced tillage, and mineral N and pig slurry fertilisation systems. Soil microbial biomass content and microbial activities decreased continuously from initial values. The decrease was slowed by slurry application, compared to either no or mineral N fertilisation, and both slurry and mineral N application stimulated soil microbial activities in the long-term. There were no significant differences in microbiological characteristics between conventional and reduced tillage for the 0 to 30 cm soil depth but microbial biomass and activity were highest from 0 to 15 cm depth under reduced tillage. Changes in several microbial properties became evident when analysing the whole experiment of 9 years and the soil unit is also of importance as shown by higher microbial activity level in Anthrosols in comparison to Luvisols.