Sains Malaysiana 41(11)(2012): 1445–1450

Waste Recycling: Feasibility of Saw Dust Based Spent Mushroom Substrate and Goat Manure in Vermicomposting

(Kitar Semula Sisa: Kebolehpenggunaan Habuk Kayu Sisa Bongkah Cendawan dan Tinja Kambing di dalam Pengomposan Vermi)

Adi Ainurzaman Jamaludin*, Noor Zalina Mahmood & Noorlidah Abdullah

Institute of Biological Sciences, Faculty of Science, University of Malaya

50603 Kuala Lumpur, Malaysia

Received: 9 August 2010 / Accepted: 2 July 2012

ABSTRACT

Vermicomposting for 140 days by using Lumbricus rubellus was conducted after 21 days of natural pre-composting. Five treatments in different ratio of goat manure: spent mushroom substrate were prepared as feed materials with four replicates for each treatment namely; 20:80 (TA), 40:60 (TB), 50:50 (TC), 60:40 (TD) and 80:20 (TE). As for control, each treatment without earthworm was prepared. On the basis of nutrient elements, goat manure and spent mushroom substrate can be decomposed through both methods of vermicomposting and natural composting. Findings of this study indicated that the higher usage of goat manure with longer duration resulted in the production of improved organic fertilizer.

Keywords: Composting; goat manure; nutrient element; spent mushroom substrate; vermicomposting

ABSTRAK

Pengomposan vermi untuk tempoh 140 hari dengan menggunakan Lumbricus rubellus telah dijalankan selepas tamat 21 hari pra-pengomposan lazim. Lima kombinasi rawatan antara tinja kambing: sisa bongkah cendawan pada nisbah yang berbeza disediakan dengan empat replikat bagi setiap rawatan iaitu 20:80 (TA), 40:60 (TB), 50:50 (TC), 60:40 (TD) dan 80:20 (TE). Kawalan disediakan bagi setiap kombinasi rawatan iaitu tanpa kehadiran cacing tanah. Berdasarkan kepada unsur nutrisi, tinja kambing dan sisa bongkah cendawan boleh diuraikan melalui kaedah pengomposan vermi dan pengomposan lazim. Seterusnya, penyelidikan ini telah membuktikan bahawa penggunaan tinja kambing pada nisbah yang tinggi untuk jangka masa yang panjang dapat menghasilkan baja organik yang lebih bermutu tinggi.

Kata kunci: Elemen nutrisi; pengomposan; pengomposan vermin; sisa bongkah cendawan; tinja kambing

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*Corresponding author; email: adiainurzaman@um.edu.my