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Influence of phosphate and boron addition to mixed liquid fertilizer on the growth and yield of red chili cultivated in the subsoil layer Sari, Stefina Liana; Sofyan, Emma Trinurani; Solihin, Eso
Kultivasi Vol 23, No 2 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i2.53370

Abstract

This study assesses the impact of adding phosphate and boron in a mixed liquid fertilizer (MLF)  on the growth and yield of red chili plants cultivated in a subsoil environment. The experiment was conducted to comprehend how these nutrients affect the performance of red chili plants, particularly when cultivated in less ideal conditions such as subsoil, a remnant of excavation for brick production. The research was carried out at the Ciparanje Garden of the Faculty of Agriculture, Universitas Padjadjaran. The research design employed a Randomized Completely Block Design with the following treatments: A = Control (degraded soil without fertilizer), B = 0% MLF + 1 NPK, C = 0.25% MLF + 1 NPK, D = 0.50% MLF + 1 NPK, E = 0.75% MLF + 1 NPK, F = 1.00% MLF + 1 NPK, G = 0.5% MLF + 3/4 NPK, H = 0.5% MLF + 1/2 NPK, I = 0.5% MLF + 1/4 NPK, J = 0.5% MLF + 0 NPK, and K = 1 NPK in normal soil. The results revealed that the addition of phosphate and boron in MLF significantly influenced the growth and yield of red chili in subsoil conditions. The recommended MLF concentration was 0.75%, alongside the standard NPK dose. These findings provide crucial insights for the development of more efficient and sustainable agricultural practices, especially in challenging soil conditions like subsoil, where nutrient availability can be a determining factor for agricultural success. 
Acceleration of Organic Waste Decomposition: A Comparative Study of ASEM-7 Decomposer Efficiency on Several Organic Wastes Khalisha, Ana; Sari, Dwi Novanda; Sari, Stefina Liana; Sukmadewi, Rani; Pradipta, Adi Surya; Istyami, Astri Nur
Journal of Applied Agricultural Science and Technology Vol. 9 No. 2 (2025): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v9i2.394

Abstract

Effective organic waste decomposition is vital for sustainable waste management and agricultural productivity. This study investigates the efficacy of ASEM-7—a newly developed decomposer comprising a consortium of seven microorganisms—in accelerating the composting process and enhancing compost quality across various types of organic waste. Five treatment groups were evaluated: paddy straw; animal manure; fruit and vegetable waste; a mixture of fruit and vegetable waste with straw; and a combination of fruit, vegetable waste, straw, and manure. During the decomposition process, key physicochemical parameters— including pH, temperature, moisture content, organic carbon (C-organic), total nitrogen (N-total), and the carbon-to-nitrogen (C/N) ratio—were systematically monitored. The results demonstrated that ASEM-7 significantly enhanced composting efficiency compared to both EM-4 and control (no-decomposer) treatments, achieving optimal pH stabilization (7–8) at a faster rate. Additionally, ASEM-7 reduced moisture content and C/N ratios more effectively, indicating a higher degree of compost maturity. Compost treated with ASEM-7 also exhibited the lowest levels of organic carbon, reflecting superior decomposition efficiency. Although temperature levels remained below the threshold required for effective pathogen elimination, microbial activity successfully facilitated nutrient recycling. The microbial consortium—comprising Bacillus sp., Lactobacillus sp., and Trichoderma sp.—demonstrated high efficacy in degrading recalcitrant organic materials such as straw and manure, thereby improving the compost's nutrient composition. By meeting key compost quality standards—organic carbon (≥15%), total nitrogen (≥0.5%), and a C/N ratio of 15–25—ASEM-7 effectively converts organic waste into high-quality compost. These findings underscore the importance of tailored microbial consortia in advancing sustainable waste management practices and enhancing soil fertility.
KEARIFAN LOKAL MASYARAKAT PESISIR ACEH KENDURI LAUT DALAM PERSPEKTIF KETAHANAN BUDAYA MELALUI PROSES PENGARSIPAN DIGITAL Dhahiyat, Ahmad Prawira; Destrian, Ope; Kristiadhi, Fanny; Junirahma, Nur Sakinah; Sari, Stefina Liana
Responsive: Jurnal Pemikiran Dan Penelitian Administrasi, Sosial, Humaniora Dan Kebijakan Publik Vol 8, No 1 (2025): Responsive: Jurnal Pemikiran Dan Penelitian Administrasi, Sosial, Humaniora Dan
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/responsive.v8i1.62257

Abstract

Studi ini bertujuan untuk menganalisis manifestasi kearifan lokal masyarakat pesisir Aceh yang tercermin dalam tradisi Kenduri Laut, dengan fokus pada implikasinya terhadap ketahanan budaya. Pendekatan penelitian kualitatif dengan pendekatan library research digunakan untuk mengumpulkan data melalui studi literatur, dan analisis dokumen. Penelitian ini berupaya mengeksplorasi bagaimana tradisi Kenduri Laut, sebagai praktik budaya yang diwariskan secara turun-temurun, berkontribusi pada pelestarian nilai-nilai luhur dan keberlanjutan lingkungan di wilayah pesisir Aceh. Temuan penelitian menunjukkan bahwa Kenduri Laut berfungsi sebagai wahana konservasi lingkungan laut melalui nilai-nilai yang terintegrasi dalam ritualnya. Tradisi ini mengedukasi masyarakat mengenai pentingnya menjaga ekosistem laut dari praktik-praktik destruktif seperti pengeboman ikan dan pencemaran laut. Kenduri Laut berperan signifikan dalam memperkuat ketahanan budaya masyarakat pesisir Aceh, tercermin dalam partisipasi masyarakat dan pemerintah daerah dalam upaya pelestarian melalui Festival Khadori Laot. Program-program berfokus melestarikan tradisi, dan mempromosikan kesadaran pentingnya menjaga keseimbangan ekosistem laut. Konsep ketahanan budaya dalam konteks dioperasionalkan melalui komitmen masyarakat dan pemerintah untuk memelihara warisan budaya. Kemudian Dinas Pariwisata dan Kebudayaan setempat mengimplementasikan visi dan misi untuk memperkuat ketahanan budaya Kenduri Laut melalui adaptasi perayaan menyesuaikan dinamika zaman sehingga memberikan arsip digital. Studi ini menyimpulkan bahwa Kenduri Laut representasi kearifan lokal religious berkontribusi pada konservasi lingkungan dan ketahanan budaya masyarakat pesisir Aceh melalui electronic recordkeeping untuk menjaga eksistensi budaya masyarakat setempat.
Pengaruh Kombinasi Pupuk Makro Majemuk Cair dengan Pupuk NPK Terhadap Pertumbuhan dan Hasil Tanaman Jagung (Zea Mays L) Solihin, Eso; Sudirja, Rija; Sari, Stefina Liana
Jurnal Kridatama Sains dan Teknologi Vol 7 No 02 (2025): Jurnal Kridatama Sains dan Teknologi
Publisher : Universitas Ma'arif Nahdlatul Ulama Kebumen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53863/kst.v7i02.1767

Abstract

Fertilization is a key factor in enhancing crop productivity, primarily through the provision of essential nutrients. The application of compound fertilizers containing macronutrients, either as an alternative or a complement to single-nutrient fertilizers, is expected to improve fertilization efficiency and support sustainable crop yields. This study aimed to evaluate the effect of combining macronutrient NPK compound fertilizer with single-nutrient fertilizers—nitrogen (N), phosphorus (P), and potassium (K)—on plant growth and yield, as well as to determine the optimal dosage. The experiment was conducted from December 2024 to April 2025 using a randomized complete block design (RCBD) with nine treatments and three replications. The treatments included: a control (no fertilizer), single NPK fertilizers (300 kg/ha Urea, 150 kg/ha SP-36, 100 kg/ha KCl), combinations of NPK with compound fertilizer at different dosages (½, 1, and 1½), and compound fertilizer alone (4 L/ha). The results revealed that the combination of N, P, and K with compound fertilizer significantly enhanced plant growth and yield. Among all treatments, treatment E (NPK + 1½ doses of compound fertilizer) resulted in the highest maize yield
Uji Kompatibilitas dan Uji Stabilitas Formula Super Dekomposer Cair Ramah Lingkungan Angelina, Theresia; Sari, Stefina Liana
Journal of Business Economics and Agribusiness Vol. 2 No. 4 (2025): August
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jbea.v2i4.868

Abstract

Masalah limbah organik di Indonesia menjadi perhatian serius karena berkontribusi terhadap pencemaran lingkungan dan kesehatan masyarakat. Penelitian ini bertujuan untuk mengembangkan formula Super Dekomposer Cair Ramah Lingkungan yang berfungsi sebagai pengurai sampah organik. Formula ini mengombinasikan mikroorganisme seperti Streptomyces sp, Aspergillus sp, Pseudomonas sp, Saccharomyces sp, Lactobacillus sp, Trichoderma sp, dan Penicillium sp. Metode yang digunakan pada penelitian ini meliputi pengujian kompatibilitas dan stabilitas. Hasil menunjukkan bahwa formulasi yang dirancang secara kompatibilitas, ketujuh mikroorganisme yang tergolong bakteri dan jamur dapat hidup berdampingan, saling kompatibel, dan mampu bersinergi sedangkan secara stabilitas, ketujuh mikroorganisme tersebut memiliki aktivitas biologis yang baik setelah disimpan selama satu bulan, memiliki aktivitas mikroorganisme yang baik ditandai dengan perubahan pH menjadi asam selama proses fermentasi dan mampu mendegradasi bahan-bahan organik secara optimal. Dapat disimpulkan bahwa produk ini berpotensi sebagai alternatif dekomposer yang efisien dan ramah lingkungan, terutama bagi petani skala kecil dan rumah tangga serta dapat mendukung pertanian berkelanjutan dan sistem pengelolaan limbah yang lebih efisien.
Performance of dual-form Terminalia catappa organic fertilizers on sweet corn yield and economic viability in tropical highlands Sari, Stefina Liana; Solihin, Eso; Budiarto, Rahmat
Kultivasi Vol 25, No 2 (2026)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v25i2.70251

Abstract

Recycling underutilized plant biomass into organic fertilizers underpins low-input cropping strategies, but liquid and solid formulations derived from a common feedstock have seldom been evaluated side by side under field conditions. This study aimed to (i) characterize the physicochemical properties and safety profile of a liquid organic fertilizer (LOF) and a crumb-type organic fertilizer (COF) co-produced from Terminalia catappa leaf compost, (ii) compare their effects on sweet corn growth and yield, (iii) determine relative agronomic effectiveness (RAE), and (iv) evaluate economic feasibility of the most promising organic–inorganic combinations. We produced LOF and COF through aerobic composting of Terminalia catappa leaves (60%), black soldier fly (Hermetia illucens) larval frass (20%), and livestock manure (20%); the LOF was recovered as composting leachate and the COF as the dried, friable compost residue. Laboratory characterization confirmed that both products met Indonesian national quality standards (SNI 8167:2015 and SNI 7763:2024), with heavy metals and microbial contaminants well below permissible limits. Two parallel field trials were then conducted (November 2025–February 2026) on a volcanic Andisol near Lembang, West Java (ca. 1,200 m a.s.l.) using sweet corn cv. Paragon. Each trial followed a randomized complete block design with seven treatments and four replicates. LOF at one dose (50 L ha⁻¹) combined with only one-quarter of the standard NPK achieved the highest husked-ear yield (8,500 kg ha⁻¹, relative agronomic effectiveness/RAE = 250%) and the most favorable benefit–cost ratio (B/C = 1.21). COF at one dose (1,000 kg ha⁻¹) with half the standard NPK yielded 16,849 kg ha⁻¹ (RAE = 154%, B/C = 1.61). The two formulations require distinct integration strategies: LOF can substitute up to 75% of mineral NPK, whereas COF performs best at 50% replacement. These findings support the valorization of T. catappa leaf litter into dual-form organic fertilizers for tropical highland sweet corn systems.
MODEL TATA KELOLA ZERO WASTE DALAM PENGELOLAAN SAMPAH ORGANIK BERBASIS CIRCULAR ECONOMY UNTUK MENDUKUNG SDGs Afrilia, Ufa Anita; Sari, Stefina Liana; Fauzan, Tribowo Rachmat
Responsive Vol 9, No 2 (2026): Responsive: Jurnal Pemikiran Dan Penelitian Administrasi, Sosial, Humaniora Dan
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/responsive.v9i2.71724

Abstract

Pengelolaan sampah organik di perguruan tinggi menghadapi tantangan berupa belum optimalnya integrasi kelembagaan, koordinasi antaraktor, dan penerapan prinsip circular economy dalam pengelolaan sumber daya. Penelitian ini bertujuan menganalisis tata kelola zero waste dalam pengelolaan sampah organik serta merumuskan model tata kelola berbasis circular economy yang mendukung keberlanjutan di perguruan tinggi. Penelitian menggunakan pendekatan kualitatif dengan metode studi kasus di Sekolah Vokasi Universitas Padjadjaran. Data diperoleh melalui wawancara mendalam, observasi, dokumentasi, dan studi literatur, kemudian dianalisis menggunakan analisis tematik dan model analisis interaktif. Hasil penelitian menunjukkan bahwa pengelolaan sampah organik telah mengarah pada penerapan prinsip zero waste melalui pengolahan material organik menjadi kompos dan pengembangan Smart Growing Media sebagai bentuk pemanfaatan kembali sumber daya. Namun, implementasinya masih menghadapi keterbatasan berupa belum tersedianya SOP khusus, struktur pengelolaan yang terintegrasi, keterbatasan sumber daya, dan koordinasi yang sebagian masih bersifat informal. Penelitian menghasilkan Model Tata Kelola Zero Waste dalam Pengelolaan Sampah Organik Berbasis Circular Economy yang mengintegrasikan environmental governance, institutional governance, collaborative governance, dan mekanisme resource recovery yang diperkuat melalui monitoring, learning, dan perbaikan tata kelola. Model ini mendukung penerapan konsumsi dan produksi berkelanjutan serta selaras dengan SDG 12 dan berpotensi mendukung SDG 11, SDG 13, dan SDG 17. Organic waste management in higher education institutions faces challenges related to suboptimal institutional integration, stakeholder coordination, and the application of circular economy principles in resource management. This study aims to analyze zero waste governance in organic waste management and to formulate a circular economy-based governance model that supports sustainability in higher education. This research utilized a qualitative approach with a case study method at the Vocational School of Universitas Padjadjaran. Data were collected through in-depth interviews, observation, documentation, and literature review, and subsequently analyzed using thematic analysis and interactive analysis models. The results indicate that organic waste management has progressed toward zero waste principles through the processing of organic material into compost and the development of Smart Growing Media as a resource reuse mechanism. However, implementation still faces constraints, including the absence of specific SOPs, an integrated management structure, limited resources, and reliance on partially informal coordination. This study yields a Circular Economy-Based Zero Waste Governance Model in Organic Waste Management that integrates environmental governance, institutional governance, collaborative governance, and resource recovery mechanisms, reinforced by monitoring, learning, and governance refinement. This model supports the implementation of responsible consumption and production, aligns with SDG 12, and has the potential to support SDG 11, SDG 13, and SDG 17.