Manuring directives for large-scale growing and grasslands in the French part of Switzerland
Ryser, J.P ; Charles, J.P ; Chauvin, B ; Degailler, J ; Dougoud, Ph ; Felber, R ; Maillard, A.N ; Rossier, D ; Thoeni, E ; Vullioud, P
Revue suisse d'agriculture (Switzerland), 1987, Vol.19 (6)Sem texto completo