This year I am converting 6000sqft of pasture into vegetable beds. My process begins by covering the area with silage tarp to smother the grasses and perennial weeds.
The tarp traps moisture, heat and decaying organic matter near the surface. This creates perfect conditions for worms to thrive. The first pic shows the crumbly worm castings that completely cover the surface of the old pasture after 3 months.
The benefits in both aeration and fertility that the worms provide will help my vegetables get off to a flying start.