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- aggregation classification "A1".
- aggregation creator B761751.
- aggregation creator person.
- aggregation creator person.
- aggregation creator person.
- aggregation creator person.
- aggregation date "2015".
- aggregation format "application/pdf".
- aggregation hasFormat 4134796.bibtex.
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- aggregation isPartOf urn:issn:1757-1693.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Earth and Environmental Sciences".
- aggregation title "Biochar amendment to soils with contrasting organic matter level: effects on N mineralization and biological soil properties".
- aggregation abstract "Four biochar types, produced by slow pyrolysis of poultry litter (PL) and pine chips (P) at 400 or 500°C, were added to two adjacent soils with contrasting soil organic matter (SOM) content (8.9 vs. 16.1 g C kg-1). The N mineralization rate was determined during 14-weeks incubations and assessments were made of the microbial biomass C, dehydrogenase activity and the microbial community structure (PLFA-extraction). The addition of PL biochars increased the net N mineralization (i.e. compared to the control treatment) in both soils while for treatments with P biochars net N immobilization was observed in both soils. Increasing the pyrolysis temperature of both feedstock types led to a decrease in net N mineralization. The ratio of Bacterial to Fungal PLFA biomarkers also increased with addition of biochars, and particularly in the case of the 500°C biochars. Next to feedstock type and pyrolysis temperature, SOM content clearly affected the assessed soil biological parameters, viz. net N mineralization or immobilization, MBC and dehydrogenase activity were all greater in the H soil. This might be explained by an increased chance of physical contact between the microbial community activated by SOM mineralization upon incubation and discrete biochar particles. However, when considering the H soil’s double C and N content, these responses were disproportionally small, which may be partly due to the L soil’s, somewhat more labile SOM. Nonetheless increasing SOM content and microbial biomass and activity generally appears to result in greater mineralization of biochar. Additionally, higher N mineralization after PL addition to the H soil with lower pH than the L soil can be due to the liming effect of the PL biochars.".
- aggregation authorList BK1129391.
- aggregation endPage "144".
- aggregation issue "1".
- aggregation startPage "135".
- aggregation volume "7".
- aggregation aggregates 4134800.
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