Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 430115
Title Effect of fertilization history on short-term emission of CO2 and N2O after the application of different N fertilizers - a laboratory study
Author(s) Jäger, N.; Duffner, A.; Ludwig, B.; Flessa, H.
Source Archives of Agronomy and Soil Science 59 (2013)2. - ISSN 0365-0340 - p. 161 - 171.
DOI https://doi.org/10.1080/03650340.2011.621420
Department(s) Chair Soil Chemistry and Chemical Soil Quality
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) nitrous-oxide emissions - cattle slurry - carbon sequestration - animal manures - organic c - c-13 nmr - soil - denitrification - climate - mineralization
Abstract Increasing organic carbon (OC) stocks in soils reduce atmospheric CO2, but may also cause enhanced N2O emissions. The objective of this study was to determine whether there are any differences in N2O and CO2 emissions from sandy arable soils with different soil OC and total nitrogen stocks due to the annual application of either farmyard manure (S-FYM) or mineral fertilizer (S-MIN) over 27 years. A laboratory incubation was performed to test the short-term effects of the application of different fertilizers [farmyard manure (FYM), KNO3 (MIN) and biogas waste (BW)] on N2O and CO2 emissions. The CO2 emission rates indicated that OC availability in the soil was higher after BW application than after FYM application. N2O emission for 53 days following fertilizer application amounted to 0.01% (MIN), 0.21% (FYM) and 24% (BW) of the total amount of N applied. The high emissions induced by BW were attributed to the combination of a high availability of OC and ammonium in the fermented waste. Fertilization history, which caused higher soil OC stocks in S-FYM, did not influence N2O emissions. The results suggest that characterization of C and N pools in organic fertilizers is required to assess their impact on N2O emissions.
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