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All Journal Tropical Plantation Journal
Nurcahyono Nurcahyono
Akademi Komunitas Perkebunan Yogyakarta
Agriculture, Biological Sciences & Forestry

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The Effect of Hatch and Carry Distance of Elaeidobius Kamerunicus on Fruit Set and Bunch Weight of Oil Palm (Elaeis guineensis Jacq.) Hartono Hartono; Agus Susanto; Indra Kurniawan; Subakho Aryo Saloko; Arief Panca Putra; Nurcahyono Nurcahyono
Tropical Plantation Journal Vol 5, No 1 (2026): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v5i1.83

Abstract

Hatch and carry is a breeding and distribution system for the primary pollinator of the oil palm, Elaeidobius kamerunicus. Information on the optimal distance for the Hatch and Carry application on pollination success and bunch productivity is still limited. This study aims to determine the effective distance of Hatch and Carry on fruit set and bunch weight in oil palm. The study used a quantitative method with a Completely Randomized Design (CRD), including Hatch and Carry distance treatments at radii of 10 m, 100 m, 200 m, 300 m, and 400 m, as well as assisted pollination techniques as a comparison. Data on fruit set and bunch weight were analyzed using analysis of variance (ANOVA) at the 95% confidence level, followed by the Duncan Multiple Range Test (DMRT). The results showed that the highest fruit set was observed at 10–200 m and was not significantly different, but decreased significantly at 300 m and 400 m. The same pattern also occurred for bunch weight, with the highest value at 100 m. The assisted pollination technique produces fruit set equivalent to the effective Hatch and Carry distance of 10–200 m. This study concluded that the effective distribution range of E. kamerunicus is within a radius of 200–300 m; thus, Hatch and Carry technology has the potential to be an efficient alternative for increasing oil palm productivity.
Vermicomposting of Oil Palm Waste-Based Spent Mushroom Substrate (Frond, Leaf, and Empty Fruit Bunch) as a Sustainable Organic Amendment: Quality Assessment of Nutrient Transformation and Physicochemical Properties Julsento HP; Herlina Mega Puspitasari; Nurcahyono Nurcahyono
Tropical Plantation Journal Vol 5, No 2 (2026): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v5i2.107

Abstract

Akumulasi limbah pertanian yang semakin meningkat, khususnya substrat jamur bekas (SMS) dan limbah padat kelapa sawit, merupakan tantangan lingkungan yang signifikan dalam sistem agroindustri tropis. Studi ini mengkaji transformasi fisikokimia SMS berbasis limbah kelapa sawit—yang terdiri dari pelepah, daun, dan tandan buah kosong—selama proses vermikompos menggunakan Eisenia fetida. Proses vermikompos dilakukan dalam kondisi terkontrol dan sifat fisikokimia substrat yang diukur sebelum dan sesudah proses. Parameter yang diukur meliputi suhu, kadar udara, konduktivitas listrik (EC), pH, nitrogen total (N), total fosfor (P), kalium total (K), dan indeks kesuburan tanah. Hasil penelitian menunjukkan peningkatan yang signifikan pada konsentrasi unsur hara setelah vermikompos: total N meningkat dari 64,33 menjadi 217,67 mg/kg (+238,4%), total P dari 90,33 menjadi 305,00 mg/kg (+237,7%), dan total K dari 206,67 menjadi 697,67 mg/kg (+237,6%). Konduktivitas listrik meningkat secara signifikan dari 1.293,33 menjadi 4.365,00 µS/cm (+237,5%), yang mencerminkan peningkatan konsentrasi zat terlarut ionik yang terkait dengan mineralisasi bahan organik. Indeks kesuburan tanah secara keseluruhan menunjukkan peningkatan sebesar 237,7%, naik dari 711,00 menjadi 2.400,33 mg/kg. pH tetap stabil pada 7,70, menunjukkan kondisi netral hingga sedikit basa yang membantu ketersediaan unsur hara. Temuan ini menegaskan bahwa vermikompos limbah kelapa sawit berbasis SMS merupakan strategi biokonversi yang efektif, menghasilkan vermikompos kaya nutrisi dengan potensi kuat sebagai bahan perbaikan tanah berkelanjutan untuk sistem pertanian tropis. Studi ini menyediakan data dasar penting untuk mengoptimalkan pengelolaan limbah biosirkular di sektor kelapa sawit Indonesia.
Analysis of Oil Palm Leaves Potential as an Alternative Raw Material for Paper Production Ledya Upara Slivina; Nurcahyono Nurcahyono; Julsento HP Julsento
Tropical Plantation Journal Vol 5, No 2 (2026): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v5i2.97

Abstract

The global paper industry faces a structural challenge due to excessive dependence on wood as its primary raw material, contributing to accelerated deforestation and tropical forest ecosystem degradation. Amid these environmental pressures, utilization of lignocellulosic biomass from plantation waste has emerged as a strategic and sustainable alternative. Indonesia, the world's largest palm oil producer, generates massive volumes of palm leaf waste that remain largely underutilized. This study aims to analyze the potential of oil palm leaves (Elaeis guineensis Jacq.) as an alternative raw material for paper production, encompassing biomass availability. An experimental laboratory approach was employed using NaOH delignification at 100°C for 60 minutes, followed by sheet formation and testing at two composition variants: 100% oil palm leaves and a 50% oil palm leaves–50% recycled pulp blend. The 100% leaf paper exhibited a coarser texture suitable for art and craft applications, while the blended composition produced more homogeneous sheets with superior mechanical strength for eco-packaging. These findings confirm that oil palm leaves represent a technically feasible, economically advantageous, and environmentally sustainable biomass feedstock as a partial wood substitute in the paper industry.
Co-Authors Agus Susanto Arief Panca Putra Hartono Hartono Herlina Mega Puspitasari Indra Kurniawan Julsento HP Julsento HP Julsento Ledya Upara Slivina Subakho Aryo Saloko