Earthworm cast is the earthworm waste. From the component terms,it contains organic matter, humic acid, nitrogen, phosphorus and potassium. It has been shown to contain reduced levels of contaminants and a higher saturation of nutrients than do organic materials before vermicomposting. A research from scientificresearch publishing has state the worms composting technology, its importance, use and some salient results obtained in the globe so far,I think it may advance the course of vermicompost:
Earthworm has caught imagination of philosophers like Pascal and Thoreau. Yet its role in the nutrition of agricultural fields has attracted attention of researchers worldwide only in recent decades. Waste management is considered as an integral part of a sustainable society, thereby necessitating diversion of biodegradable fractions of the societal waste from landfill into alternative management processes such as vermicomposting. Earthworms excreta (vermicast) is a nutritive organic fertilizer rich in humus, NPK, micronutrients, beneficial soil microbes; nitrogen-fixing, phosphate solubilizing bacteria, actinomycets and growth hormones auxins, gibberlins & cytokinins. Both vermicompost & its body liquid (vermiwash) are proven as both growth promoters & protectors for crop plants. We discuss about the worms composting technology, its importance, use and some salient results obtained in the globe so far in this review update of vermicompost research.
(source: scientific research publishing )