Level 1 - This post is intended to introduce terms which describe the essential components of a healthy soil. This discussion is complicated, so we will provide increasingly detailed levels of information, at the risk of oversimplifying in the beginning. All plants, found on earth today, evolved to thrive in a soil system filled with variety. Ancestral soils teamed with organisms and carbon compounds, which supplied abundant nutrients and water. What does a varied soil system look like when compared to a conventionally managed soil system? A varied, or healthy, soil system contains the following essential components: Carbon Compounds : Labile Carbon: Carbons which easily decay, such as those present in microorganisms, compost, crop residues, manures, and mulches. These materials release mineral nutrients back into the soil. Recalcitrant Carbon: Contains Humic Acids which are essential to a healthy and productive soil, Humic Acids ...