Spreading manure compost in the walkways of my garden is an annual chore that I partially completed today before rain chased me inside. I still have another 6 walkways to cover to complete the task. With this compost in place, there will be only minimal weeding and no tilling required for the remainder of this growing period and the next one as well.
I generally harvest two crops in each raised row followed by two cover crops (one in summer and one in winter) before starting again with a different rotation on crops and covers.
Together the compost and cover crops provide a soil bed with "No NPK required" completely organically. The cows that produce the compost generate a positive cash flow while my only costs are in seed for the crops and the cover crops. I save most of my crop seed but haven't yet figured out how to efficiently save cover crop seeds...but other than that my system is totally self-sustaining and organic.
I'm very happy with the state of my garden.