The process of composting is a technique in which the natural process every organic substance undergoes through the action of microbes is controlled, accelerated and improved.
It is an "aerobic process of biological decomposition of organic substances which occurs under controlled conditions, allowing us to obtain a biologically stable product in which the organic component presents a high degree of evolution" (Keener et al., 1993). Rich in humus, in active microbial flora and in micro-elements, compost is suitable for many agricultural uses, from greenhouse plants to open field cultivation.
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