Fig. 3. The mean composition (SD) of the percolated total P (TP), calculated as
TDP/TP and OP/TP over the whole leaching experiment. Groups with the same letter
(s) are not significantly different (Scheffé’s test, p < 0.05) from each other (TDP: total
dissolved P; OP: orthophosphate; FYM: farmyard manure; VFG: vegetable, fruit and
garden waste compost; CMC1: farm compost with low C/N; CMC2: farm compost
with high C/N; CSL: cattle slurry; MIN: only mineral fertilizers; NF+: no fertilizer;
NF: fallow).