Articles | Volume 1, issue 2
SOIL, 1, 707–717, 2015
https://doi.org/10.5194/soil-1-707-2015
SOIL, 1, 707–717, 2015
https://doi.org/10.5194/soil-1-707-2015

Original research article 15 Dec 2015

Original research article | 15 Dec 2015

Effect of biochar and liming on soil nitrous oxide emissions from a temperate maize cropping system

R. Hüppi et al.

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Cited articles

Anderson, C. R., Hamonts, K., Clough, T. J., and Condron, L. M.: Biochar does not affect soil N-transformations or microbial community structure under ruminant urine patches but does alter relative proportions of nitrogen cycling bacteria, Agr. Ecosyst. Environ., 191, 64–72, https://doi.org/10.1016/j.agee.2014.02.021, 2014.
Angst, T. E., Six, J., Reay, D. S., and Sohi, S. P.: Impact of pine chip biochar on trace greenhouse gas emissions and soil nutrient dynamics in an annual ryegrass system in California, Agr. Ecosyst. Environ., 191, 17–26, https://doi.org/10.1016/j.agee.2014.03.009, 2014.
Bakken, L. R., Bergaust, L., Liu, B., and Frostegard, A.: Regulation of denitrification at the cellular level: a clue to the understanding of N2O emissions from soils, Philos. Trans. B, 367, 1226–1234, https://doi.org/10.1098/rstb.2011.0321, 2012.
Biederman, L. A. and Harpole, W. S.: Biochar and its effects on plant productivity and nutrient cycling: a meta-analysis, GCB Bioenergy, 5, 202–214, https://doi.org/10.1111/gcbb.12037, 2013.
Case, S. D. C., McNamara, N. P., Reay, D. S., Stott, A. W., Grant, H. K., and Whitaker, J.: Biochar suppresses N}2O emissions while maintaining {N availability in a sandy loam soil, Soil Biol. Biochem., 81, https://doi.org/10.1016/j.soilbio.2014.11.012, 2014.
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Short summary
Biochar is considered an opportunity to tackle major environmental issues in agriculture. Adding pyrolised organic residues to soil may sequester carbon, increase yields and reduce nitrous oxide emissions from soil. It is unknown, whether the latter is induced by changes in soil pH. We show that biochar application substantially reduces nitrous oxide emissions from a temperate maize cropping system. However, the reduction was only achieved with biochar but not with liming.