Chemical characterization of vermicomposted Durian husk using Perionyx excavatus

Lim, Zhi Wei (2010) Chemical characterization of vermicomposted Durian husk using Perionyx excavatus. Universiti Malaysia Sabah. (Unpublished)


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Vermicomposting as a form of recycling and adding value to waste is now a widespread activity in agriculture. This preliminary study was conducted to evaluate different types of durian husk waste materials namely, fresh shredded (FS), dry shredded (OS), fresh chipped (FC) and fresh whole (FW) durian husks (un-processed) vermicomposted using local blue worms, Perionyx excavatus, with and without cow dung. The objectives of the study were to produce vermicomposts from the wastes, characterize the chemical properties of the composts and evaluate the composting effiCiency (CE). The experiment was carried out in the vermished at the Reid Laboratory of School of Sustainable Agriculture, Universiti Malaysia Sabah. Each treatment (i.e the various durian husk wastes, with and without cow dung) was replicated three times in a completely randomized design (CRO). The parameters of the study were nitrogen (N), carbon (C), phosphorus (P), potassium (1<), calcium (ca), magnesium (Mg) and pH of the vermicompost as well as composting effiCiency. The chemical analysis of the vermicomposts was done after eight and half weeks of vermicomposting. All data were analyzed using two-way AN OVA and Tukey's test was used for means separation. In comparison to the raw materials, after vermicomposting, pH, N, K, Mg and ca content of the compost increased by 9 to 13%, 76 to 93%, 64 to 75%, 120 to 167%, 178 to 265% respectively while OC decreased by 23 to 34%. The results of pH, CE, N, OC, P, K, ca and Mg for FS vermicompost was 6.7, 85.68%, 0.64%, 41.5 %, 79.5 mg kg¯¹, 124.5 mg kg¯¹, 215 mg kg¯¹ and 81.5 mg kg¯¹ respectively. In the case of OS vermicompost, the results were 7.01, 26.35%, 0.09%, 42.5%, 77.3 mg kg¯¹, 142 mg kg¯¹, 203 mg kg¯¹ and 69.5 mg kg¯¹ respectively. For FC vermicompost, the results were 7.3,53.98 %,0.096 %,38.23 %,55.24 mg kg¯¹, 89.3 mg kg¯¹, 320.5 mg kg¯¹ and 75.5 mg kg¯¹ respectively. The study indicated that treatments amended with cow dung were more suitable for vermicomposting. The shredded durian husk and amended with cow dung resulted in a better compost compared to the other treatments.

Item Type: Academic Exercise
Uncontrolled Keywords: Durian, Durian husk, Perionyx excavatus, Agriculture, Vermicomposts, Chemical properties
Subjects: ?? SB354-402 ??
Divisions: SCHOOL > School of Sustainable Agriculture
Depositing User: Unnamed user with email
Date Deposited: 08 Oct 2012 10:18
Last Modified: 13 Oct 2017 04:05

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