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All Journal Jurnal Penelitian Pertanian Terapan Jurnal Agro Industri Perkebunan Jurnal Biologi Tropis Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Aptisi Transactions on Management Tropical Plantation Journal Journal of Agriculture (JoA) Agroista: Jurnal Agroteknologi Riwayat: Educational Journal of History and Humanities Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Flora: Jurnal Kajian Ilmu Pertanian dan Perkebunan
Sri Gunawan
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Immunology & microbiology Social Sciences

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Potential Acceleration of Early Growth in Oil Palm Seedlings through the Optimization of Biochar Growing Media and Organic-inorganic Fertilizer Formulation Setyawan, Heri; Elfatma, Olivia; Aji, Wandha Atmaka; Gunawan, Sri
Journal of Agriculture Vol. 4 No. 03 (2025): Research Articles, November 2025
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v4i03.7299

Abstract

The success of oil palm cultivation is closely related to the quality of seedlings produced in the nursery phase. This study evaluated the potential acceleration of early growth in oil palm seedlings by optimizing biochar-based growing media combined with organic–inorganic fertilizer formulations. The experiment was arranged in a Completely Randomized Design (CRD) with three treatments: M1 (10 g urea + 50 g organic fertilizer), M2 (10 g NPK + 50 g organic fertilizer), and M3 (10 g urea + 10 g NPK). Each treatment was replicated ten times, resulting in 30 seedlings per replicate. Growth observations were conducted weekly from week 4 to week 20 (approximately four months), covering seedling height, leaf number, and stem diameter. Data were analyzed using one-way ANOVA at a 5% significance level, complemented by effect size analysis (?² and ?²) at week 20 to quantify the biological treatment's influence, and descriptive evaluation of the growth trend. The results showed no significant differences among treatments (p > 0.05). However, all treatments exceeded the physiological growth standards for four-month-old seedlings. M3 produced the highest growth response, with relative increases of 200% in height, 177.8% in leaf number, and 133.3% in stem diameter compared with the standard. These findings suggest that biochar-based growing media, combined with integrated organic-inorganic fertilizer formulations, can enhance early vegetative growth, although statistical significance has not yet been achieved within four months. Further observation up to ten months is recommended to validate the consistency of this growth acceleration.
PENGARUH BIO SOLID 17 BERBASIS POME TERHADAP PH, KAPASITAS TUKAR KATION, DAN KAPASITAS MENAHAN AIR TANAH INCEPTISOL Jaya, Galang Indra; Pamungkas, Guruh Sri; Gunawan, Sri; Wirianata, Herry; Santi, Idum Satia; Ardiyanto, Adhy; Kurniawan, Agung; Avianto, Yovi; Putra, Arief Panca; Aji, Novan Pramana
Jurnal Penelitian Pertanian Terapan Vol 25 No 4 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i4.4654

Abstract

Inceptisols are widely distributed in tropical regions, including Indonesia, and are characterized by high rainfall and intensive weathering. These conditions promote severe nutrient leaching, low cation exchange capacity (CEC), and moderately to slightly acidic soil pH, thereby limiting nutrient availability, fertilizer-use efficiency, and crop productivity, particularly in oil palm (Elaeis guineensis) plantations. This study aimed to evaluate the effects of BIO SOLID 17, an organic soil conditioner derived from palm oil mill effluent (POME) sludge, on the chemical and physical properties of Inceptisol through a controlled incubation experiment. A two-month laboratory incubation was conducted using a randomized complete block design with five application rates of BIO SOLID 17 (0, 5, 10, 15, and 20 kg ha⁻¹), each with five replications. Observed parameters included soil pH, cation exchange capacity (CEC), and water-holding capacity (WHC), which were analyzed using standard methods. The results demonstrated that BIO SOLID 17 application significantly improved Inceptisol soil quality in a dose-dependent manner. Soil pH increased from strongly acidic conditions (4.85) in the control to near-neutral levels (6.19) at the highest application rate. Soil CEC also increased significantly from 34.41 to 47.49 cmolc kg⁻¹, indicating enhanced nutrient retention capacity. In addition, soil water-holding capacity increased from 46.82% to 55.81%, reflecting improvements in soil aggregation and moisture retention. Overall, BIO SOLID 17 shows strong potential as a sustainable organic soil amendment for improving the chemical and physical fertility of Inceptisol. The utilization of POME-based materials supports circular economy principles by converting agro-industrial waste into value-added agricultural inputs. Further field-scale studies are recommended to confirm effectiveness and determine optimal application rates under oil palm plantation systems.
Co-Authors Afiantoro, Febri Agung Kurniawan Aji, Novan Pramana Aji, Wandha Atmaka Ardiyanto, Adhy Astuti, Yohana Th. Maria Avianto, Yovi Budi Purwono Dwi Novirani Edi Susanto Elfatma, Olivia Fani Ardiani Fariha Wilisiani, Fariha Gancar C. Premananto Guruh Sri Pamungkas, Guruh Sri Hartono Hartono HERI SETYAWAN Husin, Syarief Nur Idum Satia Santi Indra Kurniawan Jamaliah Jamaliah Jaya, Galang Indra Jovi Sulistiawan, Jovi Mahardika, Yefta Muhammad Yusuf Mustajib, Muhammad Nurcahyono Nurcahyono, Nurcahyono Othman, Norfaridatul Akmaliah Pratama, Oktarianto Tidar Putra, Arief Panca Ramadania Ramadania Ramadhan, M.Fauzan Riski, Dewa Saloko, Subakho Aryo Samsuri Tarmadja, Samsuri Sayyida Sayyida Sinka, Valina Solakhudin, Muhammad Rafi Sri Hartini Toni Athory Sinaga Wijayani, Suprih Wirianata, Herry Wirianata, Herry Yusup Paisol