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Department of Biological and Chemical Engineering

Publications

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Hutchings, N., Sommer, S. G. & Jarvis, S. C. (1996). A model of ammonia volatilization from a grazing livestock farm. Atmospheric Environment, 30, 589-599.

Petersen, S. O., Sommer, S. G. & Lind, A. M. (1996). Kvælstoftab fra gødningslagre: Reportering af delprojektet BÆR-SP4.

Rubæk, G. H., Henriksen, K., Petersen, J., Rasmussen, B. & Sommer, S. G. (1996). Effects of application technique and anaerobic digestion on gaseous nitrogen loss from animal slurry applied to ryegrass (Lolium perenne). Journal of Agricultural Science, 126, 481-492.

Sommer, S. G. (1996). Ammonia volatilization from farm tanks containing anaerobically digested animal slurry. Atmospheric Environment, 31, 863-868.

Sommer, S. G., Sibbesen, E., Nielsen, T., Schjørring, J. K. & Olesen, J. E. (1996). A passive flux sampler for measuring ammonia volatilization from manure storage facilities. Journal of Environmental Quality, 25, 241-247.

Sommer, S. G. & Hutchings, N. (1996). Betydning af fodrings- og gødskningspraksis for ammoniakemission.

Sommer, S. G. & Hutchings, N. (1996). Betydning af fordrings- og gødningspraksis for ammoniak emission. In Ammoniak og naturforvaltning" DMU workshop, Silkeborg. Rapport, 161 (pp. 13-20)

Sommer, S. G. & Hutchings, N. (1996). Components of Ammonia Volatilization from Cattle and Sheep Production. In S. C. Jarvis & B. F. Pain (Eds.), Gaseous Nitrogen Emissions from Grassland (pp. 79-93)

Sommer, S. G. & Ersbøll, A. K. (1996). Effect of air flow rate, lime amendments and chemical soil properties on the volatilization of ammonia from fertilizers applied to sandy soils. Biology and Fertility of Soils, 21, 53-60.

Sommer, S. G. & Ersbøll, A. K. (1996). Effect of air flow rate, lime amendments and chemical soil properties on the volatilization of ammonia from fertilizers applied to sandy soils. Biology and Fertility of Soils, 21(1-2), 53-60. https://doi.org/10.1007/BF00335993

Sommer, S. G., Hutchings, N., Kyllingsbæk, A. & Thomsen, I. (1996). Historical trends in N circulation on Danish livestock farms and the related legislation. Ingénieries: Eau-Agriculture-Territoires, Special Issue, 23-30.

Sommer, S. G., Sherlock, R. R. & Khan, R. Z. (1996). Nitrous oxide and methane emissions from pig slurry amended soils. Soil Biology & Biochemistry, (10/11), 1541-1544.

Sommer, S. G. & Sherlock, R. R. (1996). pH and buffer component dynamics in the surface layers of animal slurries. Journal of Agricultural Science, 127, 109-116.

Eriksen, J. & Sommer, S. G. (1995). Chemical composition of organic and inorganic compounds in animal manure. In Proceedings from 20th NJF Congress Reykjavik (pp. 65-65)

Hutchings, N., Sommer, S. G. & Jarvis, S. C. (1995). A model of ammonia volatilization from a grazing livestock farm. Poster session presented at A model of ammonia volatilization from a grazing livestock farm, Culham, Oxford, United Kingdom.

Petersen, S. O., Sommer, S. G. & Aaes, O. (1995). Amonia losses from dairy and urine of grazing cattle: Effect of intake. In Atmospheric Ammonia Emission, Seposition and Environmental Impacts, Abstracts

Sommer, S. G. (1995). Ammoniakfordampning fra lagret kvæg- og svinegylle. Grøn viden - Landbrug, 135, 1-6.

Sommer, S. G. & Husted, S. (1995). A simple model of pH in slurry. Journal of Agricultural Science, 124, 447-453.

Sommer, S. G. & Husted, S. (1995). Chemical composition of the buffer system in livestock and biogas plant digested slurry. Journal of Agricultural Science, 124, 45-53.

Sommer, S. G., Mikkelsen, H. E. & Mellqvist, J. (1995). Evaluation of meteorological techniques for measurements of ammonia loss from pig slurry. Agricultural and Forest Meteorology, 74, 169-179.

Sommer, S. G. (1995). Reduktion i ammoniakfordampning fra lagret afgasset gylle ved overdækning med lecasten eller flydelag.

Sommer, S. G. & Hutchings, N. (1995). Techniques and strategies for the reduction of ammonia emission from agriculture. Water, Air and Soil Pollution, 85, 237-248.

Sommer, S. G. & Husted, S. (1995). The chemical buffer system in raw and digested animal slurry. The Journal of Agricultural Science, 124(1), 45-53. https://doi.org/10.1017/S0021859600071239

Hutchings, N., Sommer, S. G. & Jarvis, S. C. (1994). Modelling the ammonia emissions of a grazing livestock farm. In H. Apsimon (Ed.), The potential for abatement of ammonia emissions from agriculture and associated costs

Sommer, S. G. (1994). Ammoniakfordampning fra lagret kvæg- og svinegylle. Grøn viden - Landbrug, 135, 1-6.

Sommer, S. G. (1994). Ammoniakfordampning i Danmark. Vand og Jord, 5, 210-214.

Sommer, S. G. (1994). Ammoniaktab og jordbearbejdning. Grøn viden - Landbrug.

Sommer, S. G. & Jensen, C. (1994). Ammonia volatilization from urea and ammoniacal fertilizers surface applied to winter wheat and grassland. Fert. Res., 37, 85-92.

Sommer, S. G. & Ersbøll, AK. (1994). Soil tillage effects on ammonia volatilization from surface-applied or injected animal slurry. Journal of Environmental Quality, 23, 493-498.

Sommer, S. G. & Ersbøll, A. K. (1994). Soil tillage effects on ammonia volatilization from surfaceapplied or injected animal slurry. Journal of Environmental Quality, 23, 493-498.

Hutchings, N. J. & Sommer, S. G. (1993). Factors of particular importance for the emission of NH3 from agriculture. In C. Beier & J. Fenger (Eds.), Critical Loads for Nitrogen; Proceedings of the annual meeting of the Danish Centre for Atmospheric Research (pp. 14-16). DCAR.

Olesen, J. E. & Sommer, S. G. (1993). Modelling effects of wind speed and surface cover on ammonia volatilization from stored pig slurry. Atmospheric Environment, (27A), 2567-2574.

Olesen, J. E. & Sommer, S. G. (1993). Modelling effects of wind speed and surface cover on ammonia volatilization from stored pig slurry. Atmospheric Environment Part A, General Topics, 27(16), 2567-2574. https://doi.org/10.1016/0960-1686(93)90030-3

Sommer, S. G. (1993). Ammoniakfordampning fra handelsgødning. Grøn viden - Landbrug, (113).

Sommer, S. G., Christensen, B. T., Nielsen, N. E. & Schjørring, J. K. (1993). Ammonia volatilization during storage of cattle and pig slurry: Effect of surface cover. Journal of Agricultural Science, 121, 63-71.

Sommer, S. G. & Mikkelsen, H. (1993). Field campaign in Denmark (Agriculture). In C. Brunström & K. Karlsen (Eds.), Continuous monitoring of ammonia emissions: Project No. 90 169 (pp. 66-79). Nordic Industrial Fund.

Sommer, S. G., Jensen, E. S. & Schjørring, J. K. (1993). Leaf absorption of atmospheric ammonia emitted from pig slurry applied beneath the canopy of winter wheat. Acta Agriculturae Scandinavica, Section B - Soil & Plant Science, 43, 21-24.

Sommer, S. G. & Thomsen, I. K. (1993). Loss of Nitrogen from Pig Slurry due to Ammonia Volatilization and Nitrate Leaching. In Nitrogen flow in pig production and environmental consequences. (Verstegen, M.W.A., Hartog, L.A., den Kempen, G.J.M. & Metz, J.H.M. (Eds.)). Pudoc Scientific Publishers, Wageningen, The Netherlands (pp. 353-367)

Ersbøll, A. & Sommer, S. G. (1992). Non-lineær regressionsanalyse af ammoniakfordampning ved forskellig jordbearbejdning. 20-21. Paper presented at Temadag om Biometri og Informatik.

Larsen, K. E., Petersen, J., Hansen, J. F. & Sommer, S. G. (1992). Kvælstofvirkning af ubehandlet gylle og biogasgylle efter overfladeudbringning og nedfældning. Tidsskrift for Planteavl, 96, 223-243. Article Beretning nr. 2226. http://web.agrsci.dk/pub/planteavl_96_223.pdf

Larsen, K. E., Petersen, J., Hansen, J. F. & Sommer, S. G. (1992). Kvælstofvirkning af ubehandlet og afgasset gylle efter overfladeudbringning og nedfældning. Tidsskr. Planteavl, 96, 223-243.

Schjørring, J. K., Sommer, S. G. & Ferm, M. (1992). A simple passive sampler for measuring ammonia emission in the field. Water, Air and Soil Pollution, 62, 13-24.

Schjørring, J. K., Ferm, M. & Sommer, S. G. (1992). Measurement of NH3 emission and deposition by the gradient method: Can passive flux sampers be used to obtain the net exchange of NH3 through periods of several days with varying wind speed and atmospheric NH3 concentration.

Schjørring, J. K., Ferm, M. & Sommer, S. G. (1992). Measurement of NH3 emission and deposition by the gradient method: Can passive flux samplers be used to obtain the net exchange of NH3 through periods of several days with varying wind speed and atmospheric NH3 concentration. Air Pollution Research Report Vol. 41

Sommer, S. G. (1992). Ammoniakfordampning fra kvæg- og svinegylle. Statens Planteavlsforsøg - Årsberetning, 1991, 34-37.

Sommer, S. G. (1992). Ammoniakfordampning fra kvæg- og svinegylle under lagring og efter udbringning på jorden.

Sommer, S. G. & Petersen, J. (1992). Ammoniakfordampning fra svinegylle og opkoncentreret biogasgylle: Bestemt med en ny mikrometeorologisk massebalancemetode.

Sommer, S. G. & Petersen, J. (1992). Ammoniakfordampning fra ubehandlet svinegylle og opkoncentreret biogasgylle: Bestemt med en ny mikrometeorologisk massebalancemetode. Tidsskr. Planteavl, Article Beretning nr. S2252-1993.

Sommer, S. G. & Christensen, B. T. (1992). Ammonia volatilization after injection of anhydrous ammonia into arable soils of different moisture levels. Plant and Soil, 142(1), 143-146.

Sommer, S. G. (1992). Ammonia volatilization from slurry during storage and in the field. In Nitrogen and Agriculture. Proc. int. Workshop Baltic Sea and the Environment, 1991, Germany, 45 (pp. 17-27)

Displaying results 451 to 500 out of 544

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Revised 16.01.2025

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Sasha D. Hafner