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All Journal Jurnal Ilmu Lingkungan Jurnal Sains dan Teknologi El-Hayah : Jurnal Biologi JURNAL AGROTEKNOLOGI Journal of Degraded and Mining Lands Management IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Nutrisi Ternak Tropis dan Ilmu Pakan Jurnal Riset Perkebunan (JRP) Agrivet: Jurnal Ilmu-ilmu Pertanian dan Peternakan Journal of Regional Development and Technology Initiatives IPTEKIN : Jurnal Kebijakan Pembangunan dan Inovasi Agrimas : Jurnal Pengabdian Masyarakat Bidang Pertanian
Irwan Taslapratama
Program Studi Agroteknologi Fakultas Pertanian Dan Peternakan Universitas Islam Negeri Sultan Syarif Kasim Riau Jalan HR Soebrantas No 155 KM 15 Kecamatan Tuah Madani Pekanbaru-Riau
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Kandungan nutrisi dan fraksi serat sorgum samurai varietas II sebagai bahan baku pakan ruminansia pada berbagai usia panen dan dosis pemupukan Anwar Efendi Harahap; Arsyadi Ali; Triani Adelina; Evi Irawati; Irwan Taslapratama; Fitri Harianti
Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan (Journal of Agricultural Sciences and Veteriner) Vol. 14 No. 1 (2026): Juni
Publisher : Fakultas Pertanian Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/agrivet.v14i1.17579

Abstract

The purpose of this study was to examine the nutritional value and fiber fraction of the Samurai sorghum variety II due to the harvest age and urea fertilizer dosage levels in producing high-nutrient forage raw materials. This study used a completely randomized plan factorial pattern (3 x 3) with 3 replications. The first factor was the treatment of harvest age of 60, 65 and 70 days, and the second factor was the urea fertilizer dosage of 150, 200, and 250 kg ha-1. The parameters observed included crude protein (%), crude fiber (%), crude fat (%) and NDF (%), ADF (%), and hemicellulose (%) in the Samurai sorghum variety II. The data obtained was analyzed with General Linear Models (GLM) and further tested with the Tukey Test. The results showed that there was no interaction between cutting age and urea fertilizer dose on the content of crude protein (%), crude fiber (%), crude fat (%), NDF, ADF, and hemicellulose in the Samurai sorghum variety II. There are also no significan differences caused by each factor, except for the variable of the average value of crude fiber at the 70-day cutting age which is higher compared to other cutting ages. The conclusion that there was no effect of interaction between harvest age and fertilizer dose on crude protein (%), crude fiber (%), crude fat (%) and NDF (%), ADF (%), and hemicellulose (%).   The conclusion of this study is that the best treatment, namely the best treatment, is the single factor of 65 days of cutting age because it is able to reduce crude fiber.
Synergistic Valorization of Palm Oil Mill Effluent and Boiler Ash into a Nutrient-Rich Liquid Organic Fertilizer Irwan Taslapratama; Intan Permata Hati; Elfi Rahmadani; Ervina Aryanti; Fauziah Shahul Hamid; Bernardi Pranggono; Mishbahuddin
Indonesian Journal of Environmental Management and Sustainability Vol. 10 No. 1 (2026): March
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2026.10.1.29-35

Abstract

Industrial symbiosis presents a transformative pathway for the sustainable management of palm oil byproducts. This study investigates a novel integrated valorization approach using boiler ash as a multifunctional ameliorant in the anaerobic fermentation of palm oil mill effluent (POME). By leveraging the synergistic physicochemical properties of acidic POME and alkaline boiler ash, we developed a self-buffering system to produce high-value liquid organic fertilizer. Varying boiler ash concentrations (0, 45, 50, and 55 g/L) were evaluated to determine the optimal nutrient recovery and stabilization parameters. Results demonstrate that a dosage of 55 g/L is statistically superior, effectively neutralizing the system to a stable pH of 7.5 without synthetic additives. This treatment yielded a nutrient-dense product containing 3.93% total NPK and 12.42% organic carbon, surpassing the Indonesian Ministry of Agriculture Regulation No. 261/2019 standards. Safety analysis revealed a Pb concentration of 12.28 ppm, which is significantly below the maximum allowable threshold, confirming the product’s environmental compatibility. This research provides a scientifically grounded method for converting industrial waste into a fortified agricultural input, advancing circular economy principles and supporting national sustainability frameworks like the Indonesia Sustainable Palm Oil (ISPO) certification.
Screening of Bacterial Isolates from Cow Manure with Potential as Antagonist Agents against Alternaria porri (Ellis) Cif. Sherin Rizkina; Syukria Ikhsan Zam; Mokhamad Irfan; Irwan Taslapratama; Yusmar Mahmud; Siti Zulaiha; Oksana Oksana; Nida Wafiqah Nabila M. Solin
El-Hayah:Jurnal Biologi Vol 10, No 5 (2026): EL-HAYAH (VOL 10, NO 5 September 2026)
Publisher : Program Study of Biology, Science and Technology Faculty, UIN Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/elha.v10i5.45721

Abstract

Environmentally friendly control of Alternaria porri (Ellis) Cif. can be carried out using antagonistic agents such as bacteria. Exploration of bacterial sources as antagonistic agents needs to be continuously conducted, one of which is from cattle manure. This study aimed to obtain potential antagonistic bacteria against A. porri. Samples were collected using a purposive sampling technique. Bacterial isolation was performed using the spread plate method from dilutions of 10⁻⁶ to 10⁻⁸. Antagonistic activity was assessed using the dual culture method. This research obtained four isolates—PKa, PKb, PKc, and PKd—with cell counts ranging from 0.12 × 10⁹ to 1.83 × 10⁹ CFU g⁻¹. All isolates belonged to the Gram-positive group. Isolate PKa exhibited no catalase activity, whereas isolates PKb, PKc, and PKd showed catalase activity. PKa was identified as Clostridium, while PKb, PKc, and PKd were identified as Bacillus. All isolates demonstrated potential as antagonistic agents, with antagonistic activity ranging from 82% to 90%.
Kinetics of lead phytostabilization in post-gold mining soils: Synergistic effects of dolomite and organic amendments on Ipomoea aquatica and Amaranthus caudatus Taslapratama, Irwan; Aryanti, Ervina; Hasibuan, Dwi Kartika Asih; Hamid, Fauziah Shahul
Journal of Degraded and Mining Lands Management Vol. 13 No. 4 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.134.11405

Abstract

Ecological damage in tropical post-gold-mining areas in Kuantan Singingi Regency, Riau Province, Indonesia is a major concern, with very low pH and high lead (Pb) bioavailability. Therefore, this study aimed to investigate the synergistic effect of dolomite and organic amendments on the phytostabilization potential of Ipomoea aquatica and Amaranthus caudatus under contaminated substrates from Benai, Indonesia. A 28-day mesocosm experiment tested the effectiveness of soil conditioners in immobilizing metals and determining plant uptake kinetics. Applying amendments effectively neutralized soil acidity and optimized the cation exchange capacity (15.01-20.84 cmol/kg), providing favorable rhizosphere conditions for soil stabilization. Pb removal efficiency was high in both species, with a maximum efficiency of 53.51% for Ipomoea aquatica and 53.05% for Amaranthus caudatus by Day 21. Kinetic modeling showed that Amaranthus caudatus reached maximum accumulation earlier (Day 7) than Ipomoea aquatica (Day 14). Moreover, a bioconcentration factor of 0.67–0.69 and a Translocation Factor <1.0 indicated that vertical metal transfer was limited due to uptake by root systems. A biological approach to internal toxicity management was observed, as no significant growth dilution effect was identified by Day 28. Ipomoea aquatica and Amaranthus caudatus are considered good phytostabilizers and candidate pioneer species for large-scale reclamation because they can rapidly immobilize metals and restore ecological buffering with dolomite addition.
Co-Authors Afifi, Abdullah A Agamuthu P. Ahmad Darmawi Ali, Aryadi Ananta, Arfi Anwar Efendi Harahap Arifin, Nor Anisa Arsyadi Ali Bernardi Pranggono Desrita, Nofia Dewi Febrina Dinny Cahyantika Dwi Kartika Asih Hasibuan Edi Erwan Elfi Rahmadani Ervina Aryanti Ervina Aryanti Evi Irawati Fauziah Shahul Hamid Fitri Harianti Gevisioner Ghea Dwiflorenti Hamid, Fauziah Shahul Harianti, Fitri Ibrahim S. Intan Permata Hati Irdon Irsyadi Siradjuddin Juliantoni, Jepri M Solin, Nida Wafiqah Nabila MAHMUD, YUSMAR Mishbahuddin Mokhamad Irfan Novia, Muhammad Ali NOVITA HERA Oksana Oksana Oksana Oksana Restu Misrianti Romus, Mahendra Septirosya, Tiara Sherin Rizkina Shofiah, Raudhatu Siti Zulaiha Sugeng Santoso Syukria Ikhsan Zam Syukria Ikhsan Zam Triani Adelina Yendraliza - YUSMAR MAHMUD Yusmar, Yusmar Zakia, Ismon