TY  - GEN
T1  - Stabilization of empty fruit bunch with addition of palm oil mill effluent during vermicompost
A1  - Astimar Abdul Aziz
LA  - English
PB  - Malaysian Palm Oil Board
YR  - 2015
UL  - http://discoverylib.upm.edu.my/discovery/Record/oai:http:--agris.upm.edu.my:0-8547
AB  - The feasibility of vermicomposting technology to stabilize the oil palm fibre waste (EFB) mixed with a bulking agent (POME) in different proportions viz. 100% (V1), 90% (V2), 80% (V3), 70% (V4), 60% (V5), and 50% (V6) was tested using composting earthworm Eisenia fetida for 84 days. The vermitreated sludge was evaluated for different physico-chemical parameters and all vermibeds expressed in pH gradually increased and remained in the range 7.9-8.5, reduction of C/N ratio (69.7-87.4%), and an increase in total kjeldahl nitrogen (TKN) (16.67-97.53%), available P (TP) (54.55-80.0%) as
well as exchangeable K (TK) (50.0-80.0%). Data suggested that inoculated earthworms could maximize the decomposition and mineralization rate, if sludge is used with appropriate bulking material for earthworm feed. Vermicomposting also caused significant increases in total concentration of metals but still in the standard range of nutrients in vermicompost: Zn (0.560.69 mg/kg), Fe (15.60-22.79 mg/kg), Mn (1.26-2.01 mg/kg) and Cu (0.030.07
mg/kg) in vermicast. The feasibility of earthworms to enhance the
nutrient profile in sludge might be useful in sustainable land restoration practices at low-input basis.
KW  - Palm oils
KW  - Fibre content
KW  - Vermicomposting
KW  - Earthworms
KW  - Physicochemical properties
KW  - Nutrient improvement
KW  - Sustainable land management
KW  - Malaysia
ER  -