You can absolutely have too much of it in one place even though it is useful. Large hog farms produce so much manure that they have problems getting rid of it a

You can absolutely have too much of it in one place even though it is useful. Large hog farms produce so much manure that they have problems getting rid of it all. The big problem is that it costs too much to haul and the feed is trucked in. Ideally the feed trucks would leave with manure to take back to where the feed comes from to use as fertilizer but of course that isn't in any way economical. It does work in some situations though like a lot of dairies where they pump the storage pits into tanks and spray or inject it back into the feedstock fields.