Composting and Plant Growth

1980 WordsJan 21, 20138 Pages
Review of Related Literature HISTORY OF VERMICOMPOSTING Vermicomposting, as an industrial process, was originally developed to remove unwanted organic materials from the agricultural and industrial waste streams. The derived product: earthworm castings, is now recognized as a high value material which, when blended with soil, can restore soil tilth by correcting the imbalances caused by the over-utilization of petrol-chemical based fertilizers; thus enabling crops and plants to naturally combat pests and diseases, all resulting in increased crop production and general plant health. Using European technology we began researching production processes and the potential of Vermicomposting over 20 years ago. In 1991 we built the first…show more content…
We developed our operational protocols from this research, and this research and operational training goes with every system. Other investigations concentrated on the properties of Vermicompost that increased plant growth. The increased plant growth observed greatly exceeded any of the nutrient inputs applied and all recent plant growth trials received balancing levels of nutrient inputs to ensure nutrients were not the cause. * Small additions of Vermicompost decreased the incidence of various plant diseases and the numbers of plant parasitic nematodes were suppressed. * Further research investigating production methods (Third part of Phase I and II) and effective practical applications of water soluble elutriates for foliar application - for immediate disease and pest control - are ongoing. Initial results were completed in June 2009 : Liquid Extracts for Disease and Pest Control. * Heat sterilization of finished Vermicompost was shown to remove all plant growth enhancing properties, but these could be restored by the addition of aqueous extracts of un-sterilized Vermicompost. This demonstrates the key factor is clearly microbial, most likely associated with plant growth regulators and increased levels of humic acid and folic acid found in Vermicompost. * Results showed
Open Document