Abstract
The purpose of this study was to obtain the composition of the ingredients and coordinate the optimal activator on compost quality in accordance with the Indonesian National Standard (SNI) 19-7030-2004. The raw materials used in composting are bamboo shoots and cow dung waste. The activator used was from a 2-week fermentation process from a banana hump that was added to rice washing water and brown sugar. The composting process in this study used a bamboo basket with a height of 100cm and a diameter of 60cm. The method used is factorial Completely Randomized Design with two factors. The first factor is the composition of cow dung and tabah bamboo shoot waste which consists of 5 levels, namely: 100%: 0%, 75%: 25%, 50%: 50%, 25%: 75%, and 0%: 100%. The second factor is the concentration of activator consisting of 3 levels, namely 250 ml, 500 ml and 750 ml. Each time repeated 2 times. In the process of composting temperature and pH every day for 31 days. Water content, C-Organic (%), Nitrogen (%) seen at the beginning and end of the composting process. The best combination of A3.B3 treatment with the composition of cow dung and bamboo shoot midrib (50%: 50%) activator concentration of 750 ml, resulted in a peak temperature of 47.250C with an average temperature during the composting process of 40.320C, average pH during composting process 7, 10, final pH 6.93, moisture content 35.95%, organic C content 23.9%, total N-content 1.46%, C / N ratio 16.42%. The resulting compost is blackish brown in color, has a crumb texture compared to other processing.
 Keywords : tabah bamboo shoots, cow dung, composting, compost quality.
Highlights
Kompos merupakan hasil penguraian dari campuran bahan organik yang sudah melalui proses pengomposan dengan bantuan mikroorganisme, secara alami bahan organik akan mengalami penguraian di alam, namun proses pengomposan secara alami berlangsung lama dan lambat, oleh sebab itu perlu pengembangan dan riset lebih lanjut agar proses penguraian bahan organik dioptimalkan sedemikian rupa sehingga pengomposan dapat berjalan dengan cepat dan lebih efisien
Komposisi kotoran sapi dan pelepah rebung bambu tabah (50%:50%) serta konsentrasi aktivator (750 ml) menghasilkan kompos dengan kualitas terbaik, yaitu pH 6,93, kadar air 35,95%, C-organik 23,9%, N-total 1,46%, C/N rasio 16,42%
Community-based composting and management of leftover food for urban agriculture
Summary
Berdasarkan uraian tersebut, penelitian ini dilakukan dengan tujuan untuk mengetahui dan mendapatkan komposisi bahan dan konsentrasi aktivator yang optimal terhadap kualitas kompos sesuai dengan SNI 19-7030-2004. Pada bulan Januari dilakuan pra-penelitian untuk menguji kualitas MOL dari bonggol pisang dan dilakukan analisis TPC (Total Plate Count) di laboratorium Mikrobiologi Fakultas Teknologi Pertanian, Universitas Udayana. Rancangan Percobaan Penelitian ini menggunakan Rancangan Acak Lengkap karena unit percobaan dalam kondisi homogen dengan dua jenis faktor yaitu, faktor pertama komposisi bahan baku (A), dan faktor kedua adalah konsentrasi aktivator Mikroorganisme Lokal (B). Menurut (Krisnawan, 2018) dalam proses pembuatan kompos sebaiknya menggunakan kadar air 60±2% sehingga proses pengomposan memerlukan waktu yang lebih singkat serta kualitas kompos yang dihasilkan sesuai SNI. Penumpukan bahan kompos dan penambahan MOL Setelah semua bahan baku siap, selanjutnya pelepah rebung dicampur dengan kotoran sapi sesuai perbandingan pada rancangan percobaan, dengan berat total pada semua tumpukan kompos yaitu 100
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