خيارات البحث
النتائج 191 - 200 من 347
Nitrification in organic and mineral soil layers in coniferous forests in response to acidity
1998
Rudebeck, A. | Persson, T. (Department of Ecology and Environmental Research, Swedish University of Agricultural Sciences, P.O. Box 7072, S-750 07 Uppsala (Sweden))
Plant uptake of radionuclides in lysimeter experiments
1998
Gerzabek, M.H. | Strebl, F. | Temmel, B. (Austrian Research Centre Seibersdorf, Division of Life Sciences, A-2444 Seibersdorf (Austria))
Composting of spent pig litter in turned and forced-aerated piles
1998
Tiquia, S.M. | Tam, N.F.Y. (Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong (China))
Trends in needle and soil chemistry of Norway spruce and Scots pine stands in South Sweden 1985-1994
1998
Thelin, G. | Rosengren-Brinck, U. | Nihlgard, B. | Barkman, A. (Forest Ecology, Department of Plant Ecology, Ecology Building, Lund University, S-223 62 Lund (Sweden))
Nitrogen response of herbs and graminoids in experiments with simulated acid soil solution
1998
Falkengren-Grerup, U. (Department of Plant Ecology, Lund University, Ecology Building, S-223 62 Lund (Sweden))
Risk of damage to crops in the direct neighbourhood of ammonia sources
1998
Eerden, L.J.M. van der | Visser, P.H.B. de | Dijk, C.J. van (Research Institute for Agrobiology and Soil Fertility, Research unit Plant and Biosphere, P.O. Box 14, 6700 AA Wageningen (Netherlands))
Seasonal variability and mitigation options for N2O emissions from differently managed grasslands
1998
Kammann, C. | Grunhage, L. | Muller, C. | Jacobi, S. | Jager, H.J. (Institute for Plant Ecology, University of Giessen, Heinrich-Buff-Ring 38, D-35392 Giessen, Germany)
The mass budget of atmospheric ammonia in woodland within 1 km of livestock buildings
1998
Fowler, D. | Pitcairn, C.E.R. | Sutton, M.A. | Flechard, C. | Loubet, B. | Coyle, M. | Munro, R.C. (Institute of Terrestrial Ecology, Edinburgh Research Station (United Kingdom))
Nitrogen efficiency in global animal production
1998
Hoek, K.W. van der (National Institute of Public Health and the Environment (RIVM), PO Box 1, NL-3720 BA Bilthoven (Netherlands))
Characterization of biogenic nitric oxide source strength in the southeast United States
1998
Aneja, V.P. | Roelle, P.A. | Robarge, W.P. (North Carolina State University, Raleigh, NC 27695-8208 (USA))