Mapping of salt-affected soils ? Technical manual - FAO
The union N of all the sets N(a,~,xl,x2'z),. N(a,~,x,zl,z2) and N(x,z) is P ... filtration containing all P-null sets in ~. with ~t = ~t+ (the usual ...Télécharger Mapping of salt-affected soils ? Technical manual - FAO pdf
