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| | Sustainable Soil Management |
 | | An acre of living topsoil contains approximately 900 pounds of earthworms, 2,400 pounds of fungi, 1,500 pounds of bacteria, 133 pounds of protozoa, 890 pounds of arthropods and algae, and even small mammals in some cases.(2) Therefore, the soil can be viewed as a living community rather than an inert body. |
 | | A well-aggregated soil allows for increased water entry, increased air flow, and increased water-holding capacity.(13) Plant roots occupy a larger volume of well-aggregated soil, high in organic matter, as compared to a finely pulverized and dispersed soil, low in organic matter. |
 | | In their absence, perennial grass is the only crop that can regenerate and increase soil humus.(18) Cool-season grasses build soil organic matter faster than warm-season grasses because they are growing much longer during a given year.(18) When the soil is warm enough for soil organisms to decompose organic matter, cool-season grass is growing. |
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