For successful solarization, the soil should be smooth and flat to allow the plastic to lay snug against it. Till or turn over the soil and remove or break up any clods, rocks, sticks, and hard roots.
Surprisingly, clear plastic is actually more effective than black plastic at heating up soil. The sun’s rays easily pass through clear plastic, only to be trapped inside to heat the soil.
Staple gunning the plastic is the way I did it, and I simply wrapped the corners around the bed as if I was wrapping a package.
Soil solarization is most effective when the top 6 inches of soil is maintained at or above a daily temperature of at least 110°F for four to six weeks, as most pathogens reside in this upper layer.
After removing the plastic, you can sow seeds or plant transplants like normal.