@ Alkobaisy, vermicompost is nothing but the use of earthworms to convert organic waste into fertilizer. Earthworms are valued by farmers because, in addition to aerating the soil, they digest organic matter and produce castings that are a valuable source of humus. Vermicompost is stable, fine granular organic manure, which enriches soil quality by improving its physicochemical and biological properties. It is becoming popular as a major component of organic farming system.
Vermicompost is finely divided peat-like material with high porosity, aeration, drainage, water holding capacity, microbial activity and is the end product of non-thermophilic biodegradation of organic materials by combined action of earthworms and associated microbes. Vermicompost enhances soil biodiversity by promoting the beneficial microbes which in turn enhances plant growth directly by production of plant growth-regulating hormones and enzymes and indirectly by controlling plant pathogens, nematodes and other pests, thereby enhancing plant health and minimizing the yield loss.
If we stick strictly to the concept of compost as a stable organic material with humic acids as a result of microbial and enzymatic activity for a sufficiently long time and on organic starting materials with a high carbon:nitrogen ratio, some experts do not consider "vermicompost" (shorter process) as compost.
The agricultural revolution and after that with the introduction of new technology, unfortunately, due to the lack of knowledge of the farmers, we have caused a problem with the soil micro-organisms. One of the thousands of soil process problems is the destruction of earthworms.
Therefore, vermicompost is the best option for improving and developing earthworms in the rhizosphere of agricultural soils.
Vermicomposting, also widely recognized as worm composting, is a simple technology that uses earthworms to convert biodegradable waste into organic manure. Farmers value earthworms because, in particular with respect to aerating the soil, they digest organic matter and produce castings, which are an important source of humus. Vermicomposting produces better results because the worms increase the diversity of microorganisms and the vermicompost contains more plant growth hormones. And vermicompost contains more humus than regular compost.
Vermicompost is compositing using earthworms. Normally this is practiced under shade/shed so that earthworms are not killed due to high temperature.the organic waste like kitchen waste/crop residues/small quantity of cowdung with water or slurry is sprinkled on the organic wastes.