Let me add one more thing to that too…..Just simply “not tilling” for a year doesn’t in and of itself always progress your situation as far the soil fertility is concerned. If you’re not growing big biomass crops then you won’t see much change because that’s where most of the change comes from….in the amount of carbon being added back. Also let’s say we just had all grass or all legume…..In one situation the process would likey be locked up due to an overload of carbon locking up all the N……in the other situation you would likely be declining in OM% because you’ve got all legume and no carbon…..What I’m getting at is you could cease tillage and still not be improving your soil if the right steps were not taken to allow the soil to improve and become more balanced.