Effectiveness Of Indigenous Earthworm Species On Major Nutrient Changes During Bioconversion Of Coffee Pulp Amended With Pressmud

S. Manivannan
2017 Zenodo  
Application of fresh organic wastes or non-stabilized compost to soil may leads to immobilization of plant nutrients and cause phytotoxicity. Annually, large amount of coffee by-products are generated throughout coffee processing industry. The environmental problems associated with raw coffee pulp (CP), such as release of polyphenols and tannins could be mitigated by stabilizing its nutrient and organic matter contents by vermicomposting before application to agricultural soils. The objectives
more » ... ls. The objectives of this study was to evaluate the changes in nutrient content of CP amended with sugarcane press mud (SPM) using earthworms and vermicomposting during over a period of 75 days in order to produce stabilized organic fertilizer. Results revealed that nutrient contents during vermicomposting showed a significant variation in all the treatments (p<0.05) for all the sampling days for both species than natural composing. Among the different treatments PT4, PT5 and PT6 treatments for P.ceylanensis and LT10, LT11 and LT12 for L. mauritii treatments showed significantly (p<0.05) higher level of nutrients than other treatments and natural composting treatments.
doi:10.5281/zenodo.1312803 fatcat:m5rcmvrgmzgbtivcbwuwean2w4