Red Bull Breeder":19b6zqa3 said:
Use a big roller on them.
Only works for just so long. The neighbor used to roll his hay fields every spring to push back down the rocks that had creaped up during the winter. After about 4 years he noticed his yeild was falling off, too many rocks taking up space at the surface. But fortunately not everyone has the rock situation that we enjoy around here.
I have a theory about the rocks and their proliferation. Supposedly as a rock weathers it breaks down and gets smaller. My theory is that dirt is really just rock eggs and the longer they grow the bigger the rocks get.