Sterilising and re-using potting compost
I have recently acquired an electric soil steriliser (and no longer feel guilty about using it now the solar panels are up and running ) . My question is - could I just keep using my potting mix year after year by adding, say, garden compost and nutrients and then sterilising it? I can't think of any reason why not - over time I can see that the structure of, say, the coir or leaf mold in it may deteriorate over time - but if I keep adding fresh ingredients that should solve that. Any thoughts?