If you have insufficient nitrogen, a substance like cottonseed meal may be added to encourage decomposition. To aerate soil is to introduce air into the soil. This can be accomplished by many methods including plowing, roto-tilling, using a pitch fork or pole to punch holes into the earth. These may be PVC pipes with holes drilled into them. A mass or body of individual units or particles.
Healthy soil has good aggregation.
As microorganisms and worms feed, they form polysaccharides which act like glue to hold individual soil particles together, creating groups, or aggregates, of particles. This loose formation allows soil to hold both water and air, and does not restrict the growth of roots. It is bacteria that generate the heat associated with hot composting. The three types of bacteria are psychrophilic, mesophyllic, and thermophilic. An entire cubic-yard pile is built at the same time, and finishes decomposing at the same time.