Long term field experiments on the fertilizer value and soils ameliorating properties of dewatered sludges. Long-term effects of sewage sludge and farm slurries applications. Proceedings of a Round-Table Seminar oganized by the EEC, Directorate-General Science, Research and Development, Environment Research Programme held in Pisa, Italy, 25-27 September, 1984 - Koskela, Inkeri (il, 1985)
Keywords: lietelanta; sewage sludge