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All Journal Agrovigor: Jurnal Agroekoteknologi Jurnal Agrotek Tropika Journal of Tropical Crop Science Jurnal Tanah dan Iklim Agricultural Science Journal of Agriculture and Animal Science Jurnal Pengabdian Masyarakat Charitas
AH. Maftuh Hafidh Zuhdi
Horticulture Cultivation Study Program, Politeknik Pertanian Dan Peternakan Mapena
Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Social Sciences

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Journal : Agricultural Science

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Impact of Petroleum Industry Activities on Basic Soil Physical and Chemical Properties: A Case Study PT Pertamina EP Cepu Bojonegoro, Indonesia AH. Maftuh Hafidh Zuhdi; Tandaditya Ariefandra Airlangga; Irene Zaqyah
Agricultural Science Vol. 9 No. 2 (2026): March In Progress
Publisher : Faculty of Agriculture, Merdeka University Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55173/agriscience.v9i2.191

Abstract

Petroleum industrial activities have the potential to alter soil physical and chemical properties through various contamination mechanisms and operational processes. This research aimed to evaluate the impact of PT Pertamina EP Cepu petroleum industrial activities on basic physical and chemical soil properties in areas surrounding operations. The study was conducted from October to November 2025 using a descriptive survey approach with purposive sampling method. Soil samples were collected at 0-20 cm depth from 12 sampling points located within a ± 200-meter radius in four cardinal directions (North, East, South, and West) from the operational center. Physical properties analyzed included soil texture, bulk density, and porosity, while chemical properties included pH, C-Organic, total N, available P, exchangeable K, and electrical conductivity (EC). Data analysis was performed descriptively by comparing laboratory measurement results with soil property assessment criteria established by Balai Penelitian Tanah to categorize each parameter and identify soil quality degradation levels in the research area. The results showed that soil in the research area had clay texture (67% clay fraction), high bulk density (1.47 ± 0.21 g/cm³), moderate porosity (44.5%), neutral pH (6.7 ± 0.2), very low C-Organic (0.99 ± 0.07%) and total N (0.07 ± 0.01%), high available P (28.64 ± 2.22 mg/kg) and exchangeable K (0.94 cmol(+)/kg), and moderately high EC (3.9 dS/m). These findings indicate that petroleum operational activities have caused soil quality degradation, particularly through soil compaction and reduction in organic matter content. Appropriate soil management interventions, including organic matter addition, traffic management, and contamination remediation, are essential to restore and maintain soil quality in petroleum operational areas.
Growth Response of Robusta Coffee (Coffea canephora) Cuttings to Arbuscular Mycorrhizal Fungi Dosage Application in Ultisol Husna; Luthfi, Hafiz; Sari, Sismita; Zuhdi, AH. Maftuh Hafidh
Agricultural Science Vol. 9 No. 2 (2026): March In Progress
Publisher : Faculty of Agriculture, Merdeka University Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55173/agriscience.v9i2.193

Abstract

Coffee production in Lampung Province faces significant challenges due to the dominance of Ultisol soils characterized by low fertility, high acidity, and phosphorus fixation. This study aimed to determine the optimal dosage of arbuscular mycorrhizal fungi (AMF) inoculum to enhance the growth of robusta coffee (Coffea canephora) cuttings in Ultisol growing media. The experiment was conducted at the State Polytechnic of Lampung from August to October 2025 using a Randomized Complete Block Design (RCBD) with four treatments: M0 (control without mycorrhizal), M1 (10 g mycorrhizal inoculum per plant), M2 (20 g per plant), and M3 (30 g per plant). Each treatment was replicated four times with three plants per experimental unit. Growth parameters measured included leaf number, plant height, and root volume at 0, 3, 9, and 12 weeks after transplanting. Results showed that the M1 treatment consistently produced superior growth performance across all parameters. At 12 weeks after transplanting, M1 achieved 21.44 leaves (53.1% increase), 38.69 cm plant height (48.7% increase), and 44.67 cm³ root volume (108.3% increase) compared to the control. Higher dosages (M2 and M3) showed diminishing returns, indicating excessive inoculum application may cause unfavorable carbon allocation dynamics. This study concludes that 10 g mycorrhizal inoculum per plant is the optimal dosage for enhancing robusta coffee cutting growth in Ultisol nursery systems.
The Effect of Controlled Release Fertilizer On The Growth of Oil Palm (Elaeis Guineensis Jacq.) Seedlings In The Pre-Nursery Bela Ayu Pratiwi; Adi Noor Prayogi; Bambang Utoyo; AH. Maftuh Hafidh Zuhdi; Husna
Agricultural Science Vol. 9 No. 2 (2026): March In Progress
Publisher : Faculty of Agriculture, Merdeka University Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55173/agriscience.v9i2.195

Abstract

Improving oil palm production can be achieved through better cultivation management, including proper nursery practices. The quality of seedlings at the early growth stage plays a crucial role in determining field performance, making efficient fertilization essential from the pre-nursery phase. One of the fertilization technologies developed to improve nutrient uptake efficiency is the application of Controlled Release Fertilizer (CRF). This study aimed to evaluate the effect of CRF compared with conventional NPK fertilizer on the growth of oil palm seedlings. The experiment was conducted for three months using a Completely Randomized Design (CRD) with four treatments: no fertilizer (P0), NPK (P1), NPK + CRF (P2), and CRF (P3). Data were analyzed using ANOVA at a 5% significance level, followed by the LSD test when significant differences were detected. The results showed that treatments P2, P3, and P4 produced better growth responses than the control in all observed parameters, including plant height, number of leaves, leaf greenness, stem diameter, and leaf area. Fertilizer application significantly improved seedling growth, while CRF, either applied alone or in combination with NPK, produced growth responses comparable to conventional fertilization. These findings indicate that CRF has the potential to be used as an effective fertilization alternative to support oil palm seedling growth in the pre-nursery.  
Co-Authors Achmad Djunaidi Adi Noor Prayogi Airlangga, Tandaditya Ariefandra Amin Mubarok, Amin Bambang Utoyo Dana, Aldi Arma Endang Sulistyaningsih Enni Dwi Wahjunie Husna Husna Husna Husna Husna Indarwati, Lisa Dwifani Khoirul Huda Luthfi, Hafiz Pratiwi, Bela Ayu Sinar Suryawati Sismita Sari, Sismita Siswara, Hamzah Nata Suria Darma Tarigan Zaqyah, Irene