Influence of Vermicompost Technology on Solubility of Eppawala Rock Phosphate

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dc.contributor.authorRathnayake, R.M.N.
dc.contributor.authorGunathilaka, R.P.D.
dc.contributor.authorSenarathne, S.H.S.
dc.date.accessioned2021-10-22T08:29:57Z
dc.date.available2021-10-22T08:29:57Z
dc.date.issued2011
dc.description.abstractNote: See the PDF Version This study was conducted to determine the influence of vermicompost technology on solubility of ERP. Earthworms play a major role in vermicomposting. The most common type of earthworms used for vermicomposting is brandling worms (Eisenia foetida). Food is ingested through the mouth into a stomach (crop), which retains food and has the ability to expand. From there, food goes into the gizzard where sand and muscular contractions churn the food and increase the surface area. From there, food enters the intestine which has the ability to absorb food, then food exits through the anus. This final product consists of low power organic acids, like Malate, Oxalate, Citrate, etc. This low power organic acid is helps to increase the solubility of ERP. ERP is currently mined for use as a fertilizer for perennial crops such as tea, rubber and coconut. This is gives considerable value to the country because Phosphate deposits are non-renewable and dwindling resources in the world like fossil fuel. Also this is very economically important natural resource in Sri Lanka. Current production is 25 000 metric tonnes per year while reserves are 40 million metric tonnes. This saves nearly Rs 20 billion annually spent for importing fertilizer. This is important for providing the Phosphorus (P) fertilizer requirement, because P plays an important role in many physiological and bio chemical functions that are important to plants and animals. Major problem can be seen in ERP is the less solubility. The core bodies at Eppawala contain 42% P2O5 and citric acid solubility of different components varies from 4 to 6%. The parent rocks are mainly made up of calcite, dolomite and apatite, with lesser amounts of ilmenite, magnetite, pyrite, forsterite, phlogopite, enstatite, magnesite, diopside, tremolite and spine!. The Eppawala rocks are characterized by low silica (0.41%), high phosphorous (10.58%) and high strontium content (Gunawardena, 2003). Therefore in this study, an experiment was made to increase the availability of P by using vermicomposting.en_US
dc.identifier.issn22359877
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/7339/371-Influence%20of%20%20Vermicompost%20Technology%20on%20Solubility%20of%20Eppawala%20Rock%20Phosphate.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Srilankaen_US
dc.subjectBiologyen_US
dc.subjectBio Chemicals Engineeringen_US
dc.subjectMineral Sciencesen_US
dc.titleInfluence of Vermicompost Technology on Solubility of Eppawala Rock Phosphateen_US
dc.typeOtheren_US
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Research Symposium-2011