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All Journal Jurnal Penelitian Kehutanan FALOAK Jurnal Agroforestri Indonesia
Aji Winara
Balai Litbang Teknologi Agroforestry
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Immunology & microbiology

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KELAYAKAN USAHATANI JALAWURE (Tacca leontopetaloides) DI BAWAH TEGAKAN JATI (Tectona grandis) SUHARTONO suhartono; Aji Winara
Journal Penelitian Kehutanan FALOAK Vol 3, No 2 (2019): Jurnal Penelitian Kehutanan Faloak
Publisher : Balai Penelitian Dan Pengembangan Teknologi Hasil Hutan Bukan Kayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (625.323 KB) | DOI: 10.20886/jpkf.2019.3.2.75-86

Abstract

Jalawure merupakan umbi penghasil pangan alternatif bagi wilayah pesisir pantai hingga dataran rendah. Pemanfaatan jalawure masih mengandalkan sebaran alami dan budidaya non intensif. Penelitian ini bertujuan untuk mengetahui kelayakan usahatani jalawure di bawah tegakan jati hutan rakyat. Penelitian dilaksanakan tahun 2016 hingga 2017 di Kecamatan Cikelat, Kabupaten Garut, Jawa Barat. Metode yang digunakan adalah observasi langsung dan wawancara dengan informan kunci. Kriteria kelayakan usahatani jangka pendek dihitung dengan pendekatan rasio biaya pendapatan dan analisis produktivitas pertanian. Sementara kelayakan usahatani jangka panjang dinilai dengan pendekatan Net Present Value dan Net Benefit Cost Ratio. Hasil penelitian menunjukkan bahwa usahatani jalawure pada jarak tanam 75x75 cm dengan produksi akhir tepung lebih layak dijalankan dibanding dengan jarak tanam 50x50 cm dan 100x100 cm dengan R/C 1,67, produktivitas kerja Rp 78.496 per HOK dan produktivitas lahan Rp 6.993 0.816 per hektar per tahun dan produktivitas modal 14,4% per tahun. Untuk tujuan usaha jangka panjang, usahatani jalawaure berpotensi menjadi agribisnis yang menguntungkan dengan NPV 14.400.059,11 dan Net B/C 1.08.
The Diversity of Soil Macrofauna on Agroforestry Teak (Tectona grandis) and Polynesian Arrowroot (Tacca leontopetaloides Aji Winara
Jurnal Agroforestri Indonesia Vol 1, No 1 (2018): Jurnal Agroforestri Indonesia
Publisher : Balai Litbang Teknologi Agroforestry, Ciamis

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (419.366 KB) | DOI: 10.20886/jai.2018.1.1.47-55

Abstract

Teak and polynesian arrowroot is a new pattern of agroforestry to support food security of communities around forests in coastal areas. The presence of polynesian arrowroot under teak stands is not only expected to be food sources but also to provide ecological benefits for biodiversity, especially soil macrofauna. The study aims is to determine the diversity of soil macrofauna in teak and polynesia arrowroot agroforestry patterns. The study was conducted in Garut Regency in April 2017. The method used in this study was monolithic technique and analyzed by calculating diversity and richness index. The object was an agroforestry demonstration plot with three polynesia arrowroot spacings under 7-years-old teak stand and monoculture teak. The results showed that there were 5 soil macrofaunas in teak and polynesian arrowroot agroforestry which are from five families and five orders. The dominance order was coleoptera with Important Value Index (IVI) = 133.93% -157.78% and opisthophora with IVI = 103.51%. The diversity and richness of soil macrofauna in teak and polynesian arrowroot agroforestry patterns is low (H '= 0.28-0.55; R' = 0.87-1.48). Although agroforestry cultivation is carried out intensively, there is no difference in the diversity of soil macrofauna when compared to teak monoculture.
Co-Authors Suhartono Suhartono