Benefits of using compost
Compost is best known for its soil enrichment value.
The addition of compost improves the physical, chemical and biological properties of soils and potting mixes. The use of compost for plant growth purposes requires consideration of factors such as the crop or plant to be grown, type of soil at the site, and specific compost characteristics. Mature, properly produced compost has also been gaining recognition for its ability to bind contaminants from polluted water and soil, control erosion, and degrade toxic chemicals. Between increased research on the benefits of compost as a growth media and interest in its use in bioremediation, the future for compost markets is promising.
Examples of the benefits of compost use: https://www.compostingcouncil.org/page/CompostBenefits
Benefits of compost as a growing media are included in the table below.
| Physical | Chemical | Biological |
|---|---|---|
| Decreases bulk density, reduces compaction, allows better root penetration | Slowly releases nutrients | Increases microbial activity in soil, releasing nutrients from organic matter |
| Improves soil structure and increases water holding capacity | Reduces fertilizer needs | |
| Darkens soil and increases heat absorption | Good source of micronutrients | Increases plant survival rate and growth |
| Improves drought tolerance | Increases cation exchange capacity which enables soil to hold nutrients more strongly and resist leaching | Strengthens plant resistance to parasites; Can reduce soil borne plant diseases |
| Reduces soil erosion | Buffers soil pH | Produces higher crop yields; Plants develop thicker and more active root systems in a short period of time |