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Energy production from biomass and wastes: present limitations and potential improvements
1992
Jewell, W.J. | Cummings, R.J. | Richards, B.K. (Cornell Univ., Ithaca, NY (USA). Dept. of Agricultural and Biological Engineering)
Treatment of liquid manure with nutrient recovery
1992
Hahne, J. | Janssen, J. | Schuchardt, F. | Sonnenberg, H.
Measurement of dry deposition of ammonia on a forest
1992
Wyers, G.P. | Vermeulen, A.T. | Slanina, J. (Netherlands Energy Research Foundation, PO Box 1, 1755 ZG Petten (Netherlands))
Measurement of the dry deposition flux of NH(3) on to coniferous forest
1992
Duyzer, J.H. | Verhagen, H.L.M. | Weststrate, J.H. (TNO Institute of Environmental Sciences, PO Box 6011, 2600 JA Delft (Netherlands))
SO2 and NH3 deposition as possible causes for the extinction of Arnica montana L.
1992
Fennema, F. (Rijksinstituut voor Natuurbeheer, Arnhem (Netherlands))
A simple passive sampler for measuring ammonia emission in the field
1992
Schjoerring, J.K. (Royal Veterinary and Agricultural Univ., Frederiksberg (Denmark). Section of Soil, Water and Plant Nutrition) | Sommer, S.G. | Ferm, M.