This cultivation techniques takes a lot of sweat and time but it is well worth it. It improves the structure and fecundity of the first two feet of topsoil. To double dig, prepare the area by marking of your section and removing the weeds or sod. A few days after, start at one end of your section and dig a trench one foot wide and one foot deep. Put the topsoil from the trench on the other side of your section. Loosen the topsoil in the trench with a fork and add some compost into it. Dig another trench beside your first, pushing the soil from the second one into the first. Repeat the loosening and composting. Continue digging, loosening, composting, and pushing until you reach the end of your section. Add the topsoil from the first trench into the last trench. Voila!