Short-term changes of soil microbial functional diversity induced by mineral and organic fertilizers
The use of both mineral and organic fertilizers is a key agricultural practice with a relevant impact on soil processes and fertility. This study examined how three organic fertilizers (slurry, cattle manure and mustard as green manure) and one chemical fertilizer (ammonium nitrate) can affect soil...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | Bulgarian |
| Published: |
University of Zagreb, Faculty of Agriculture
2024-12-01
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| Series: | Journal of Central European Agriculture |
| Subjects: | |
| Online Access: | https://jcea.agr.hr/articles/771351_Short_term_changes_of_soil_microbial_functional_diversity_induced_by_mineral_and_organic_fertilizers_en.pdf |
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| Summary: | The use of both mineral and organic fertilizers is a key agricultural practice with a relevant impact on soil processes and fertility. This study examined how three organic fertilizers (slurry, cattle manure and mustard as green manure) and one chemical fertilizer (ammonium nitrate) can affect soil microbial functional diversity and soil biochemical processes. A short-term experiment was organized under controlled conditions for 30 days. Soil samples were collected every ten days in order to measure soil pH, N-NH4, N-NO3 and microbial activity as a community-level physiological profile (CLPP). The MicroResp method was used to assess community-level physiological profiles by using 15 different carbon sources and converting their catabolic activity to CO2. The obtained results showed that cattle manure and slurry have a significant impact on CLPP and mineralization during the first 10 days while mustard applied as green manure impacted soil parameters after 10 days. The use of chemical fertilizer had limited effect on CLPP. The organic substrates α-ketoglutaric acid and oxalic acid gave the highest metabolic activity and drove the pattern use substrate in the experimental soils. |
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| ISSN: | 1332-9049 |