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Institut for Bio- og Kemiteknologi

Publications

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Sommer, S. G., McGinn, S. M., Hao, X. & Larney, F. J. (2004). Techniques for measuring gas emissions from stockpiled cattle manure. I A. Aland & T. Banhazi (red.), Livestock Housing: Modern Management to Ensure Optimal Health and Welfare of farm animals (s. 4643-4652). Wageningen Academic Publicers. https://doi.org/10.3920/978-90-771-4

Thomsen, I. K., Sørensen, P. & Sommer, S. G. (2004). Udnyttelse af fast og flydende husdyrgødning: effekt af kompostering og afgasning. I U. Jørgensen & T. Dalgaard (red.), Energi i økologisk jordbrug: Reduktion af fossilt energiforbrug og produktion af vedvarende energi (s. 67-79)

Godwin, K. S., Hafner, S. D. & Buff, M. F. (2003). Long-term trends in sodium and chloride in the Mohawk River, New York: The effect of fifty years of road-salt application. Environmental Pollution, 124(2), 273-281. https://doi.org/10.1016/S0269-7491(02)00481-5

Hafner, S. D. (2003). Ecology (communications arising): Is fertilization efficiency misleading? Nature, 422, 397-398. https://doi.org/10.1038/422397a

Hafner, S. (2003). Trends in maize, rice, and wheat yields for 188 nations over the past 40 years: A prevalence of linear growth. Applied Soil Ecology, 97(1-3), 275-283. https://doi.org/10.1016/S0167-8809(03)00019-7

Hansen, M. N., Sommer, S. G. & Madsen, N. P. (2003). Reduction of ammonia emission by shallow slurry injection: Injection efficiency and additional energy demand. Journal of Environmental Quality, 32, 1099-1104.

Olesen, J. E., Sommer, S. G., Asman, W. A. H. & Petersen, S. O. (2003). Emission of global environment load gases from animal waste management. I 3rd int. symp. on the Promotion of Environmental Protection in the Livestock Farm. Sustainable Animal Production in Global Environment and Animal Waste Management in North America (s. 111-130)

Sommer, S. G., Søgaard, H. T., Hutchings, N., Huijsman, J., Bussink, W. & Nicholson, F. (2003). Ammonia losses from field applied animal manure - development of a European decision support system. EURATRAC, 24, 18-21.

Sommer, S. G. (2003). Drivhusgasser - Canada: Indtryk fra en studietur. DJF-Bladet.

Sommer, S. G. (2003). Drivhusgasser fra landbruget. Jord og Viden, 2, 16-17.

Sommer, S. G. (2003). Drivhusgasser fra landbruget. Indtryk fra en studietur til canadiske forskningsinstitutioner, der giver nye muligheder for DJF. Jord og viden, 2, 16-17. http://infolink.elbo.dk/jord/bruger/vis.asp?which=12064

Sommer, S. G., Petersen, S. O. & Møller, H. B. (2003). Energy production and greenhouse gas emission in biogas plant system. I Proc. int. symp. on Issues concerning biogas plant in cold-snowy regions. Civil Engineering Research Institute of Hokkaido, Sapporo, Japan. ISBN 4-9901495-0-5 (s. 50-56)

Sommer, S. G., Génermont, S., Cellier, P., Hutchings, N., Olesen, J. E. & Morvan, T. (2003). Processes controlling ammonia emission from livestock slurry in the field. Euro, 19, 465-486.

Sommer, S. G. & Hutchings, N. (2003). Vi bør satse mere på EU-samarbejde. Ingeniøren, 15.

Sørensen, C. A. G., Jacobsen, B. H. & Sommer, S. G. (2003). An Assessment Tool applied to Manure Management Systems using Innovative Technologies. Biosystems Engineering, 86(3), 315-325. https://doi.org/10.1016/S1537-5110(03)00137-5

Sørensen, C. A. G., Jacobsen, B. H., Sommer, S. G. & Guul-Simonsen, F. (2003). Håndtering af gylle ved brug af rørtransport - en teknisk-økonomisk analyse. https://www.researchgate.net/publication/280316048_Handtering_af_gylle_ved_brug_af_rortransport_-_en_teknisk-okonomisk_analyse

Eriksen, J., Petersen, S. O. & Sommer, S. G. (2002). The fate of nitrogen in outdoor pig production. Agronomie, 22, 863-867.

Hansen, M. N., Sommer, S. G. & Henriksen, K. (2002). Methane emissions from livestock manure - effects of storage conditions and climate. I Proc. Int. Workshop on Greenhouse Gas Inventories for Agriculture in the Nordic Countries (Petersen, S.O. & Olesen, J.E., (ed.)). DIAS report - Plant Production 81 (s. 45-53)

Menzi, H., Pain, B. & Sommer, S. G. (2002). Manure management: The European perspective. I Proc. 4th int. livestock waste management symp. and technology expo, Penang, Malaysia (Ong, H.K. et al. (eds.)). ISBN 983-99519-2-0 (s. 35-44)

Møller, H. B., Hansen, M. N. & Sommer, S. G. (2002). Hundrede procents udnyttelse af husdyrgødningen. Danske Maelkeproducenter, 3, 30-32.

Møller, H. B., Sommer, S. G. & Ahring, B. K. (2002). Separation efficiency and particle size distribution in relation to manure type and storage conditions. Bioresource Technology, 85, 189-196.

Osada, T., Sommer, S. G., Dahl, P. J. & Rom, H. B. (2002). Gaseous emission and changes in nutrient composition during deep litter composting. Acta Agriculturae Scandinavica, Section B - Soil & Plant Science, 51, 137-142.

Sherlock, R. R., Sommer, S. G., Khan, R. Z., Wood, C. W., Guertal, E. A., Freney, J. R., Dawson, C. O. & Cameron, K. C. (2002). Ammonia, methane and nitrous oxide emission from pig slurry applied to a pasture in New Zealand. Journal of Environmental Quality, 31, 1491-1501.

Søgaard, H. T., Sommer, S. G., Hutchings, N., Huijsmans, J. F. M., Bussink, D. W. & Nicholson, F. (2002). Ammonia volatilization from field-applied animal slurry - the ALFAM model. Atmospheric Environment, 36(20), 3309-3319.

Sommer, S. G. (2002). ALFAM - Et beslutningsstøtteværktøj til beregning af ammoniakfordampning. I Danmarks JordbrugsForskning og Landbrugets Rådgivningscenter konference: Teknik i Landbruget 2002, Scandinavian Congress Center, Aarhus, 21.-22.3.02. Bila (s. 58-59)

Sommer, S. G. & Hutchings, N. (2002). ALFAM vil kunne mindske ammoniakfordampning fra markerne. Jordbrugsforskning, 1, 3-3.

Sommer, S. G., Petersen, S. O. & Møller, H. B. (2002). A new model for calculating the reduction in greenhouse gas emissions through anaerobic co-digestion of manure and organic waste. I S. O. Petersen & J. E. Olesen (red.), Proc. Int. Workshop on Greenhouse Gas Inventories for Agriculture in the Nordic Countries (s. 54-63)

Sommer, S. G., Møller, H. B. & Hansen, M. N. (2002). Fremtidig teknologi til håndtering af husdyrgødning på svinebrug.

Sommer, S. G., Hansen, M. N. & Møller, H. B. (2002). Fuld udnyttelse af husdyrgødning. Forskningsnytt om Oekologisk Landbruk i Norden, 2, 18-20.

Sommer, S. G. & Kaadt, M. H. (2002). Hydratkalk reducerer smitte, men øger ammoniakfordampning. Landsbladet Svin, 12, 12-12.

Sommer, S. G., Søgaard, H. T., Hutchings, N., Huijsman, J., Bussink, W. & Nicholson, F. (2002). NH3 losses from field applied animal manure - development of a European decision support system. I Proc. 4th int. livestock waste management symposium and technology expo, Penang, Malaysia (Ong, H.K. et al. (eds.)). ISBN 983-99519-2-0 (s. 259-267)

Sommer, S. G., Søgaard, H. T., Hutchings, N., Huijsman, J., Bussink, W. & Nicholson, F. (2002). NH3 losses from field applied animal manure - development of a European decision support system. I Ikke angivet (s. 259-267). <Forlag uden navn>.

Sommer, S. G. & Petersen, S. O. (2002). Nitrous oxide emissions from manure handling - effects of storage conditions and climate. I S. O. Petersen & J. E. Olesen (red.), Proc. Int. Workshop on Greenhouse Gas Inventories for Agriculture in the Nordic Countries (s. 97-106)

Sommer, S. G., Møller, H. B. & Petersen, S. O. (2002). Reduction in methane and nitrous oxide emission from animal slurry through anaerobic digestion. I Proc. 3rd int. symp. on Non-CO2 Greenhouse Gases: Scientific Understanding, Control Options and Policy Aspects. Millpress Science Publishers Delft, Maastricht, The Netherlands. ISBN 90-77017-70-4 (s. 475-480)

Andersen, J. M., Poulsen, H. D., Børsting, C. F., Rom, H. B., Sommer, S. G. & Hutchings, N. J. (2001). Ammoniakemission fra landbruget siden midten af 80?erne.

Eriksen, J., Petersen, S. O. & Sommer, S. G. (2001). Miljøbelastning ved søer på friland. I J. E. Hermansen (red.), Økologisk og udendørs svineproduktion - Hvor står vi? (s. 30-34)

Eriksen, J., Petersen, S. O. & Sommer, S. G. (2001). The fate of nitrogen in outdoor pig production. I Book of abstacts, 11th Nitrogen Workshop (s. 391-392)

Hansen, M. N., Jacobsen, B. & Sommer, S. G. (2001). Dybstrøelse i markstak taber op til 40 procent af sit kvælstof. Landsbladet Svin, 5, 20-21.

Hutchings, N., Sommer, S. G., Andersen, J. M. & Asman, W. A. H. (2001). A detailed ammonia emission inventory for Denmark. Atmospheric Environment, 35, 1959-1968.

Hutchings, N. & Sommer, S. G. (2001). Integrating emissions at the farm scale. I H. Menzi & B. Achermann (red.), Proceedings of the UN/EGE Ammonia Expert Group (s. 139-140). Swiss Agency for Environment, Forests and Landscape.

Jacobsen, B., Sommer, S. G. & Hansen, M. N. (2001). Uden overdækning forsvinder op til 21 procent kvælstof fra gylletanken. Landsbladet Svin, 5, 14-16.

Oenema, O., Bannink, A., Sommer, S. G. & Velthof, G. L. (2001). Gaseous Nitrogen Emissions from Livestock Farming Systems. I Nitrogen in the Environment: Sources, Problems and Management. Follett, R.F. & Hatfield, J.L., (Eds.). Elsevier Science B.V., Chapter (Bind 10, s. 255-289)

Poulsen, H. D., Børsting, C. F., Rom, H. B. & Sommer, S. G. (2001). Kvælstof, fosfor og kalium i husdyrgødning - normtal 2000.

Rattanarajcharkul, R., Rucha, W., Sommer, S. G. & Menzi, H. (2001). Area-wide integration of specialised livestock and crop production in Eastern Thailand. I Proc. 9th int. workshop of the network general theme: 'Technology Transfer", RAMIRAN 2000, Ital (s. 295-300)

Rom, H. B., Sommer, S. G. & Hansen, M. N. (2001). Ammoniakfordampning fra husdyrgødning. Nedsættelse af fordampningen fra stald til mark. JordbrugsForskning, 3, 6-8.

Søgaard, H. T., Sommer, S. G., Hutchings, N. & Huijsman, J. (2001). Ammonia volatilization from manure applied to fields – data collation for an EU database and ists statistical analysis. I NJF-Seminar 320: Sustainable handling and utilisation of livestock manure from animals to plants

Søgaard, H. T., Sommer, S. G. & Hutchings, N. (2001). Ammonia volatilization from manure applied to fields - data collation for an EU database and its statistical analysis. I Proc. NJF-Seminar, 320: Sustainable handling and utilisation of livestock manure from animals to plants. DIAS report - Animal Husbandry, 21 (s. 174-187)

Sommer, S. G. & Hutchings, N. (2001). Ammonia emission from field applied manure and its reduction. European Journal of Agronomy, 15, 1-15.

Sommer, S. G., Hutchings, N., Carton, O. T., Smith, K., Søgaard, H. T., Nicholson, F. A., Huijsmans, J., Bussink, W., Misselbrook, T., Pain, B., Genermont, S., Menzi, H., Morken, J., Verwijs, B., Rodhe, L. & Döhler, H. (2001). Ammonia losses from field applied animal manure. Aarhus University.

Sommer, S. G., Søgaard, H. T., Møller, H. B. & Morsing, S. (2001). Ammonia volatilization from sows on grassland. Atmospheric Environment, 35, 2023-2032.

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Revideret 18.03.2026

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Sasha D. Hafner