What is the Difference Between Compost and Humus?
Compost is the adolescent stage of humus. Unlike humus compost is still in the process of decomposition and therefore actively consuming nutrients to facilitate the process. Spreading compost on your lawn, while beneficial in the long run, will initially cause nutrient depletion as it consumes resources to reach full maturity, at which point it becomes humus.
At Natural State Horticare we only topdress with true humus. Unlike compost, humus is both immediately beneficial and beneficial long-term. It is THE BEST source of organic matter and a source of beneficial micro-organisms for your yard. Humus is a natural soil food that will support healthy root development and acts as a sponge for both nutrients and microbial life ultimately translating to more water retention, more nutrient retention, and less runoff. That, in turn, means everything else you do to your lawn regarding fertilizers, microbial inoculation and even weed control applications are that much more efficient.
- Quickly establishes a layer of healthy organic matter
- Quicker recovery from damage
- Controls thatch
- Reduces chance of disease
- Helps to level dips and ruts
- Improve the effectiveness of all fertilization programs.
- Improve soil retention of all inputs
Soil structure refers to the arrangement of soil particles and how they stick together. An ideal structure would be made up of crumbs that stick together to form larger clumps. This arrangement allows for small pockets of space called micropores that hold water for the grass and a relatively equal amount of larger areas called macropores. Macropores are air spaces that allow oxygen to get to the roots of the grass. Both types of pore spaces are equally important to growing a healthy stand of grass. The two different pore spaces have an inverse relationship with each other. As one type of pore space is increased the other decreases in amount. If the soil is heavy clay, it will be comprised of mostly micropores and can hold water around the roots of the grass. This higher concentration of water-holding pore space limits the amount of oxygen available to the root system and can increase the incidence of disease in the turf. On the other hand, sandy soils can be very droughty because they contain a disproportionate amount of air spaces. A more significant balance of pore spaces can be achieved on native soils by top dressing the lawn.