Research done by Dr. V. A. Tiedjens in the 1920's proved that high calcium lime acted as a regulator. High calcium lime has a pH of 6.8. Dr. Tiedjens realized there was no relationship between adequate saturation and pH of the soil. He developed a test to determine the amount of calcium in soil to produce a maximum yield. He discovered that the chemically active colloidal matter in the soils determined how much limestone was needed.
Organic matter has the ability to absorb large quantities of calcium.
The more we looked at the soil and calcium connection, the more benefits we realized, such as earthworms. Earthworm eggs will stay dormant in the soil until the proper level of calcium becomes available. Earthworms open the plow sole to let oxygen in, carbon dioxide out. Earthworms feed on dead or decaying organic matter, and then deposit castings in the soil. These castings are richer in plant food than the soil.