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A. Leip and Uwizeye, A., {Nitrogen Footprints}, Encyclopedia of Ecology, vol. 4, pp. 370–382, 2019.
Environmental Pollution: statistics {&} numerical da
M. A. Sutton, Oenema, O., Erisman, J. Willem, Leip, A., van Grinsven, H., and Winiwarter, W., {Too much of a good thing.}, Nature, vol. 472, pp. 159–61, 2011.
J. Balik, Cerny, J., Tlustos, P., and Zitkova, M., Nitrogen balance and mineral nitrogen content in the soil in a long experiment with maize under different systems of N fertilization., Plant Soil Environment, vol. 49, pp. 554-559, 2003.
U. Daemmgen and Webb, J., The development of the EMEP/CORINAIR Guidebook with respect to the emissions of different nitrogen and carbon species from animal production., Agriculture, Ecosystems and Environment, vol. 112, 2006.
P. Kai, Pedersen, P., jensen , J. E., Hansen, M. N., and Sommer, S. G., A whole-farm assessment of the efficacy of slurry acidification in reducing ammonia emissions, European Journal of Agronomy, vol. 28, pp. 148-154, 2007.
C. F. Borsting, Kristensen, T., Misciattelli, L., Hvelplund, T., and Weisbjerg, M. R., Reducing nitrogen surplus from dairy farms. Effects of feeding and management., Livestock Production Science, no. 83, pp. 165-178, 2003.
S. G. Sommer, Genermont, S., Cellier, P., Hutchings, N. J., and Olesen, J. E, M. T., Processes controlling ammonia emission from livestock slurry in the field, European Journal of Agronomy, vol. 19, pp. 465-486, 2003.
H. N. J. Sommer, S. G, Ammonia emission from field applied manure and its reduction—invited paper, European Journal of Agronomy, vol. 15, pp. 1-15, 2001.
U. Daemmgen and Hutchings, N. J., Emissions of gaseous nitrogen species from manure management: A new approach, Environmental Pollution, no. 154, pp. 488-497, 2008.
T. Nyord, Schelde, K. M., Sogaard, K. T., Jensen, L. S., and Sommer, S. G., A simple model for assessing ammonia emission from ammoniacal fertilisers as affected by pH and injection into soil, Atmospheric Environment, vol. 42, pp. 4656-4664, 2008.
S. G. Sommer, Schjoerring, J. K., and Denmead, O. D., Ammonia emissions from mineral fertylisers and fertylised crops , Advances in Agronomy, vol. 82, In Press.
M. A. Sutton, Erisman, J. W., Dentener, F., and Möller, D., Ammonia in the environment: From ancient times to the present, Environmental Pollution, vol. 156, pp. 583-604, 2008.PDF icon Sutton-Ammonia.pdf (0 bytes)