| Affiliation: | (1) Department of Soil Sciences, Swedish University of Agricultural Sciences, Box 7104, S-750 07 Uppsala, Sweden;(2) Agricultural Research Centre of Finland, Institute of Crop and Soil Science, Fin-31600 Jokioinen, Finland;(3) Department of Agricultural Engineering, The Agricultural University of Oslo, Box 5065, N-1432 As, Norway;(4) Swedish Environmental Research Institute, Box 47086, S- 402 58 Gothenburg, Sweden;(5) Nutrient Management Institute, Runderweg 6, 8219 PK Lelystad, The Netherlands;(6) Swedish Board of Agriculture, S-551 82 Jönköping, Sweden;(7) Swedish Board of Agriculture, S-751 86 Uppsala, Sweden |
