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Analysis of The Physical Quality of Coffee Husk Compost with The Addition of EM4 Bioactivator Sugeng Prayitno Harianto; Tsani, Machya Kartika; Surnayanti; Trio Santoso
Journal of Sylva Indonesiana Vol. 6 No. 02 (2023): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsi.v6i02.9700

Abstract

Coffee production potential is matched by waste from grinding coffee cherries. However, the coffee cherry peel (husk) is rich in essential nutrients for plant growth, including potassium, phosphorus, and nitrogen. Therefore, the purpose of this research was conducted to determine the physical quality of coffee husk compost given the addition of EM4 bioactivator. This study consisted of 2 treatments and 4 replications, namely control (coffee husk + sawdust + goat manure) and EM4 (coffee husk + sawdust + goat manure + EM4). Observations were made every 3 days until the compost was ripe with the parameters of temperature, humidity, color, smell, and texture. The results showed that the entire coffee husk compost had matured within 36 days and exhibited physical characteristics according to SNI 19-7030-2004. According to the matured compost speed, treatment with mixing compost materials using EM4 shows a faster time than without EM4. In addition, the addition of EM4 gives better results in terms of texture, color, and smell compared to compost without EM4
Potensi Tanaman MPTS (Multi Purpose Trees Species) di Kawasan RHL Desa Girimulyo Lampung Timur Simanjuntak, Vania Eveline; Gayatri, Komang Intan; Surnayanti; Machya Kartika Tsani; Sugeng P. Harianto
Journal of People, Forest and Environment Vol. 5 No. 1 (2025): Mei
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jopfe.v5i1.11807

Abstract

Hutan memiliki fungsi penting sebagai penyangga kehidupan, namun tekanan akibat alih fungsi lahan menurunkan keanekaragaman hayati sehingga diperlukan program Rehabilitasi Hutan dan Lahan (RHL) dengan tanaman Multi Purpose Tree Species (MPTS). Penelitian ini bertujuan mengetahui potensi tanaman MPTS di kawasan RHL Desa Girimulyo, Lampung Timur. Metode penelitian menggunakan observasi lapangan pada 36 petak ukur berukuran 25 × 40 m² dengan data jenis, diameter, dan tinggi tanaman yang dianalisis melalui kerapatan, frekuensi, dominansi, dan Indeks Nilai Penting (INP). Hasil penelitian menemukan enam jenis MPTS, yaitu alpukat (Persea americana), durian (Durio zibethinus), jengkol (Pithecellobium jiringa), kelapa (Cocos nucifera), kelengkeng (Litchi chinensis), dan petai (Leucaena leucocephala). Alpukat mendominasi pada tingkat pancang (INP 192,17), tiang (295,16), dan pohon (221,56), menunjukkan adaptasi dan peran ekologis yang kuat, sementara jenis lain hanya ditemukan pada fase tertentu. Indeks keanekaragaman Shannon-Wiener (H’) tergolong rendah (0–0,43) pada semua fase pertumbuhan, dengan kemerataan dan kekayaan spesies juga masih rendah. Disimpulkan bahwa alpukat berpotensi besar dalam mendukung keberhasilan program RHL sekaligus meningkatkan ekonomi masyarakat, namun rendahnya keanekaragaman jenis menandakan perlunya penambahan variasi tanaman MPTS guna memperkuat keberlanjutan ekosistem.