Publications

Sommer, S. G. & Jensen, B.-E. (2007). Ammoniakemission fra husdyrhold. Vand og Jord, (1), 4.

Sommer, S. G., Petersen, S. O., Olesen, J. E. & Falkenberg, H. (2007). Drivhusgasser og husdyrproduktion. Aktuel Naturvidenskab, (5), 16-19.

Sommer, S. G. (2007). Environmental externalities of centralised co-digestion. In European Biogas Workshop and Study Trip: The Future of Biogas in Europe III (pp. 31-36)

Sommer, S. G. (2007). Greenhouse Gas Emission and Nitrogen Turnover in Stored Liquid Manure. Nutrient Cycling in Agroecosystems. Nutrient Cycling in Agroecosystems, 78(1), 27-36.

Sommer, S. G. (2007). Indledning til tema: Ammoniakemission fra husdyrhold. Vand og Jord, 1, 4.

Sommer, S. G. (2007). Interesse for naturvidenskaben - fra skvulp til bølge. Dansk Kemi, 88(11), 67.

Sommer, S. G. (2007). Kemiske processer der kontrollerer ammoniakfordampningen fra husdyrgødning. Dansk Kemi, 88(11), 72-76.

Sommer, S. G., Petersen, S. O., Sørensen, P., Poulsen, H. D. & Møller, H. B. (2007). Methane and carbon dioxide emissions and nitrogen turnover during liquid manure storage. Nutrient Cycling in Agroecosystems, 78, 27-36. https://doi.org/10.1007/s10705-006-9072-4

Sommer, S. G. (2007). Nye modeller til beregning af ammoniaktab. In Ikke angivet (pp. 378-380). Aarhus University. http://www.lr.dk/planteavl/informationsserier/info-planter/plk07_q2_2_s_g_sommer.pdf

Sommer, S. G., Hansen, M. N. & Hutchings, N. (2007). Nye modeller til beregning af ammoniaktab. Vand og Jord, (1), 5-7.

Sommer, S. G., Pedersen, P., Løfstrøm, P. & Lundgaard, N. H. (2007). Ny viden sikrer at ammoniak ikke skader naturen. Aktuel Naturvidenskab, (1), 16-19.

Sommer, S. G., Olesen, J. E. & Petersen, S. O. (2007). Quantifying and reducing greenhouse gas emission from manure managements systems. In Ikke angivet (pp. 81-82). Nordic Association of Agricultural Scientists.

Sommer, S. G. (2007). Recycling of livestock wastes and other residues - a whole-farm perspective. Livestock Science, 112, 180-191.

Sommer, S. G. & Birkmose, T. (2007). Valuable fertilizer from animal manure. In Ikke angivet (pp. 8-10). Aarhus University. http://www.lr.dk/planteavl/informationsserier/info-planter/plk07_crop_03.pdf

Warnant, G., Rabier, F., Hjort-Gregersen, K., Christensen, J., Al Saedi, T., Møller, H. B., Sommer, S. G., Birkmose, T. S. & Nielsen, L. H. (2007). Environmental and socio-economic analysis of the setting up of a centralised co-digestion plant in the Walloon region - Belgium. In Ikke angivet (pp. 114-123). Syddansk Universitet.

Brinch-Pedersen, H., Sommer, S. G. & Holm, P. B. (2006). A Method for Recycling Important Nutritional Elements from Waste. (Patent No. WO 2006/081825 A1).

Brinch-Pedersen, H., Sommer, S. G. & Holm, P. B. (2006). Method for recyling important nutritional elements from waste. (Patent No. US 2006/0194299 A1).

Hafner, S. D., Jewell, W. J. & Bisogni, J. J. (2006). Ammonia speciation in anaerobic digesters. In 2006 ASABE Annual International Meeting

Hafner, S. D., Bisogni, J. J. & Jewell, W. J. (2006). Measurement of un-ionized ammonia in complex mixtures. Environmental Science & Technology, 40(5), 1597-1602. https://doi.org/10.1021/es051638j

Hafner, S. D. & Jewell, W. J. (2006). Predicting nitrogen and phosphorus removal in wetlands due to detritus accumulation: A simple mechanistic model. Ecological Engineering, 27(1), 13-21. https://doi.org/10.1016/j.ecoleng.2005.09.014

Hansen, T. L., Sommer, S. G., Gabriel, S. & Christensen, T. H. (2006). Methane production during storage of anaerobically digested municipal organic waste. Journal of Environmental Quality, 35, 830-836.

Hansen, M. N., Henriksen, K. & Sommer, S. G. (2006). Observations of production and emission of greenhouse gases and ammonia during storage of solids separated from pig slurry: Effects of covering. Atmospheric Environment, 40, 4172-4181.

Hjort, M., Nyord, T., Nielsen, A. M. & Sommer, S. G. (2006). Optimal plant nutrient distribution in and biogasification of manure separation products, separated with FeCl3 as coagulant. In 12th RAMIRAN International Conference, Aarhus. Conference proceeding I (pp. 119-121)

Hjort, M. & Sommer, S. G. (2006). Reduced ammonia volatilization as a side-effect of coagulant addition to enhance separation of animal slurry. In International Conference on Agricultural Waste - 2006, Kuala Lumpur. Conference proceedings.

Hjorth, M., Nyord, T., Nielsen, A. M. & Sommer, S. G. (2006). Optimal plant nutrient distribution in and biogasification of manure separation products, separated with FeC13 as coagulant. In Proc. Technology for Recycling of Manure and Organic Residues in a Whole-Farm Perspective (Vol. DIAS report Plant Production 123 (II), pp. 119-122). Aarhus University. http://web.agrsci.dk/djfpublikation/djfpdf/djfma123.pdf

Mikkelsen, S. A. (Ed.), Christensen, S. (Ed.), Schaarup, P. H. (Ed.), Vejbæk, L. (Ed.), Ravn, I. (Ed.), Lundgaard, N. (Ed.), Aaes, O. (Ed.), Lyngbye, M. (Ed.), Damkjer, R. (Ed.), Jacobsen, B. (Ed.), Qwist, M. (Ed.), Sommer, E. (Ed.), Larsen, F., Holm, P. B., Morsing, S., Kai, P., Sommer, S. G., Møller, H. B., Sørensen, C. A. G. ... Vinstrup, A. B. (2006). Udredningsrapport for teknologier: - med særligt henblik på miljøeffektive teknologier til husdyrproduktionen. In Færdige udrednings- og vejledningsrapporter <Forlag uden navn>. http://www.skovognatur.dk/NR/rdonlyres/18061490-0C0F-4EBB-9CEA-C3AF92DA3F9F/20984/Udredningsrapportforteknologier.pdf

Petersen, S. O., Sommer, S. G., Bernal, M.-P., Burton, C., Böhm, R., Dach, J., Dourmad, J. Y., Juhász, C., Leip, A., Mihelic, R., Misselbrook, T., Martinez, J., Nicholson, F., Poulsen, H. D., Provolo, G., Sørensen, P. & Weiske, A. (2006). Recycling of manure and organic wastes - a whole-farm perspective. In S. O. Petersen (Ed.), Technology for recycling of manure and organic residues in a whole-farm perspective. Vol I: DIAS Report Plant production (pp. 9-15). Aarhus University.

Poulsen, H. D., Lund, P., Sehested, J., Hutchings, N. & Sommer, S. G. (2006). Quantification of nitrogen and phosphorus in manure in the Danish normative system. In S. O. Petersen (Ed.), 12th Ramiran International Conference: Technology for Recycling of Manure and Organic Residues in a Whole-Farm Persepctive (pp. 105-107). Aarhus University.

Sommer, S. G., Zhang, G., Bannink, A., Chadwick, D., Misselbrook, T., Harrison, R., Hutchings, N., Menzi, H., Monteny, G. J., Ni, J. Q., Oenema, O. & Webb, J. (2006). Algorithms determining ammonia emission from buildings housing cattle and pigs and from manure stores. Advances in Agronomy, 89, 261-335. https://doi.org/10.1016/S0065-2113(05)89006-6

Sommer, S. G., Jensen, L. S., Clausen, S. B. & Søgaard, H. T. (2006). Ammonia volatilisation from surface-applied livestock slurry as affected by slurry composition and slurry infiltration depth. Journal of Agricultural Science, 144, 229-235.

Sommer, S. G. (2006). Drivhusgasser fra håndtering af husdyrgødning. In Sammendrag af indlæg (pp. 216-217). Aarhus University.

Sommer, S. G., Jensen, B.-E., Hutchings, N., Lundgaard, N. H., Grønkjær, A., Birkmose, T. S., Pedersen, P. & Jensen, H. B. (2006). Emissionskoefficienter til brug ved beregning af ammoniakfordampning fra stalde. Aarhus University. DJF rapport Husdyrbrug No. 70 http://web.agrsci.dk/djfpublikation/index.asp?action=show&id=942

Sommer, S. G. (2006). Emisson of greenhouse gases from animal manure. In Sammendrag af indlæg (pp. 443-445). Aarhus University.

Sommer, S. G. & Møller, H. B. (2006). Gylle - energi og gødning. Dansk Avls Nyt, 6-8.

Sommer, S. G. (2006). Luftstripning kan fjerne 60 procent af gylle-ammoniakken. LandbrugsAvisen, 24.

Sommer, S. G. & Jensen, B.-E. (2006). Ny teknologi til behandling af gylle. Mark, (11), 22.

Sommer, S. G. & Jensen, B.-E. (2006). Vietnamesere lærer om miljø i Danmark. Nyhedsbrevet, Danmarks JordbrugsForskning. http://www.agrsci.dk

Sørensen, P., Sommer, S. G. & Birkmose, T. (2006). Manure management and treatment for improved nutrient utilization. In Abstract of presentation at Technical Workshop on Manure Processing organized by European Commission http://forum.europa.eu.int/Members/irc/env/manure_processing/library?l=/abstracts_speakers/peter_sorensen_2doc/_EN_1.0_&a=d

Brinch-Pedersen, H., Sommer, S. G. & Holm, P. B. (2005). A method for recycling important nutritional elements from solid animal manure and human waste fractions. Patent PA 2005 00282. pp. 1-23.

Estevez Rodriguez, M. D., Gomez del Puerto, A. M., Montealegre Meléndez, M. L., Adamsen, A. P., Gullov, P. & Sommer, S. G. (2005). Separation of phosphorus from pig slurry using chemical additives. Applied Engineering in Agriculture, 21(4), 739-742.

Forrester, J. A., Leopold, D. J. & Hafner, S. D. (2005). Maintaining critical habitat in a heavily managed landscape: Effects of power line corridor management on Karner blue butterfly (Lycaeides melissa samuelis) habitat. Restoration Ecology, 13(3), 488-498. https://doi.org/10.1111/j.1526-100X.2005.00061.x

Hafner, S. D., Groffman, P. M. & Mitchell, M. J. (2005). Leaching of dissolved organic carbon, dissolved organic nitrogen, and other solutes from coarse woody debris and litter in a mixed forest in New York State. Biogeochemistry, 74(2), 257-282. https://doi.org/10.1007/s10533-004-4722-6

Hafner, S. D. & Groffman, P. M. (2005). Soil nitrogen cycling under litter and coarse woody debris in a mixed forest in New York State. Soil Biology and Biochemistry, 37(11), 2159-2162. https://doi.org/10.1016/j.soilbio.2005.03.006

Hansen, M. N., Sommer, S. G. & Andersen, J. M. (2005). Ammoniakfordampningen i landbruget er overvurderet. LandbrugsAvisen, 5-5.

Mikkelsen, M. H., Gyldenkærne, S., Poulsen, H. D., Olesen, J. E. & Sommer, S. G. (2005). Opgørelse og beregningsmetode for landbrugets emissioner af ammoniak og drivhusgasser 1985 - 2002.

Poulsen, H. D. & Sommer, S. G. (2005). Udvikling af bæredygtig og specialiseret svineproduktion. Tidsskrift for Landoekonomi, (2/), 33-38.

Sommer, S. G. (2005). Ammonia emission from livestock houses and manure stores. In Proc. int. workshop on Green Pork Production http://www.inra.fr/porcherie-verte.fr

Sommer, S. G., Mathanpaal, G. & Dass, G. T. (2005). A simple biofilter for treatment of pig slurry in Malaysia. Environmental Technology, 26(3), 303-312.

Sommer, S. G. & Møller, H. B. (2005). Bygholm bag storstilet gødningsforskning. Agricon Valley Information, 4, 2-2.

Sommer, S. G. (2005). Greenhouse gas emission from manure. In Proc. NJF-seminar 372: Manure - an agronomic and environmental challenge, Skurup, Sweden. Book of abstracts on www.njf.nu (pp. 14-15)

Displaying results 251 to 300 out of 544

Revised 16.01.2025

Sasha D. Hafner