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Kota malang,
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INDONESIA
BUANA SAINS
Published by Universitas Tribhuwana Tunggadewi
ISSN : 14121638     EISSN : 25275720     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics
BUANA SAINS p-ISSN : 1412-1638 | e-ISSN: 2527-5720 is a double-blind peer-reviewed, open-access journal, published by UNITRI PRESS. It publishes original and applied research in all areas of natural science. The Editorial goal is to provide a forum exchange and an interface between researchers and practitioners in any natural science related field.
Arjuna Subject : -
Articles 500 Documents
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EFEK APLIKASI MIKORIZA DAN CHITOSAN DALAM UPAYA PENINGKATAN PRODUKSI CABAI RAWIT VARIETAS BARA Fikrinda, Wahyu; Agastya, I Made Indra; Niis, Yosefina; Astutik, Astutik
BUANA SAINS Vol 25, No 1 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i1.7401

Abstract

Low productivity of cayenne pepper (Capsicum frutescens L.) is often caused by high disease incidence. The application of biological agents like mycorrhizae and chitosan offers a promising strategy for sustainable intensification. This study aimed to evaluate the synergistic effects of mycorrhizae and chitosan on the growth, yield, and disease resistance of cayenne pepper var. Bara. A field experiment was conducted from April to July 2023 in Batu, Indonesia, using a factorial Randomized Complete Block Design (RCBD). The first factor was mycorrhizal dosage (M: 0, 5, and 10 g/plant ), and the second was chitosan concentration (C: 0, 4, 8, and 12 mL/L). Results showed a significant interaction (P 0.05) between mycorrhizae and chitosan on most vegetative and generative parameters. The treatment M2C3 (10 g/plant mycorrhizae + 12 mL/L chitosan) yielded the best performance, producing 8.03 t ha⁻¹, a 204% increase compared to the control (2.64 t ha⁻¹). This combination also significantly enhanced plant height, leaf count, and biomass. While no statistical interaction was found for disease incidence, both agents individually reduced disease severity. This study demonstrates a strong synergistic effect between soil-applied mycorrhizae and foliar-applied chitosan, highlighting its potential for significantly boosting cayenne pepper production.
STUDI EVALUASI TAMAN LINGKUNGAN DI KOTA MALANG Budiyono, Debora; Kurniawan, Hendra
BUANA SAINS Vol 25, No 2 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i2.7440

Abstract

An Environmental Park is an urban green open space that plays a crucial ecological, social, and aesthetic role. However, several established environmental parks in Malang City, namely Merjosari, Slamet, Merbabu Family, and Trunojoyo Parks, are experiencing a decline in visitors. This decline is attributed to a lack of functional optimization and aesthetic appeal, compounded by competition from newer parks. This research aims to evaluate the functional performance of these specific parks. The study employs the Key Performance Index (KPI) methodology to assess key aspects, including physical conditions, park quality, spatial design, park elements, and visitor activities. The results indicate that only Merjosari Park meets the standard criteria. Otherwise, Slamet Park, Merbabu Family Park, and Trunojoyo Park were categorized as below standard. These findings highlight the urgent need for the Malang City Environmental Agency, as the managing authority, to implement comprehensive improvements. Recommendations focus on enhancing the parks' physical components, quality, spatial layout, and amenities to revitalize their function and better serve the community.
EFEKTIVITAS TEKNIK OKULASI DAN APLIKASI ZAT PENGATUR TUMBUH TERHADAP KEBERHASILAN DAN PERTUMBUHAN AWAL JERUK SIAM PONTIANAK (Citrus nobilis Var. microcarpa) Keli, Maria Oktaviana; Indawan, Edyson; Hapsari, Ricky Indri; Sumiati, Astri
BUANA SAINS Vol 25, No 2 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i2.7443

Abstract

The success of budding is influenced by various factors, including the technique employed and the application of Plant Growth Regulators (PGRs). This study aimed to determine the most effective budding technique and type of PGR to enhance the success rate and initial growth of Siam Pontianak citrus (Citrus nobilis var. microcarpa) seedlings. The research was conducted from March to May 2025 in Batu City, East Java, using a Factorial Randomized Complete Block Design (RCBD). The first factor was the budding technique: patch budding, T-budding, and chip budding. The second factor was the type of PGR: control (water), young coconut water (500 ml/L), and Atonik (1 ml/L). The analysis of variance (ANOVA) revealed no significant interaction between the two factors. However, as independent factors, the chip budding technique resulted in the highest success percentage and number of shoots (P0.05). The application of coconut water led to the fastest sprout emergence, as well as the greatest shoot height and number of leaves compared to the other PGR treatments and the control. It is concluded that chip budding is the superior method for graft union success, while coconut water is the most effective PGR for promoting the initial vegetative growth of the budded seedling.
STRATEGI PENGEMBANGAN TERNAK DOMBA DI PETERNAKAN DONBA ENGGAR KECAMATAN PARE KABUPATEN KEDIRI Choirina, Vifi Nurul; Setiyadi, Heru; Primadito, Moh. Raihan Aditya
BUANA SAINS Vol 25, No 1 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i1.6560

Abstract

Sheep farming is widely practiced in Indonesia, but most operations remain small-scale and traditional. Donba Enggar Farm, located in Pare District, Kediri Regency, represents a modern sheep farming enterprise with 150 heads and improved management practices. This study aims to formulate development strategies for the farm to enhance competitiveness and sustainability. Research was conducted using a case study approach with SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis and the Quantitative Strategic Planning Matrix (QSPM). The results place Donba Enggar Farm in Quadrant I of the SWOT diagram, indicating a favorable and aggressive growth position. Five alternative strategies were identified: maintaining production quality, optimizing digital marketing through online platforms, developing organic feed and fertilizer businesses, expanding the flock population, and participating in livestock technology training. Among these, maintaining production quality ranked as the top strategic priority. Overall, the findings highlight that proactive and integrated development strategies can strengthen the farm’s role in meeting the growing demand for sheep, particularly for religious and culinary purposes.
MEKANISME ANTAGONISME BEBERAPA ISOLAT JAMUR ANTAGONIS TERHADAP PERTUMBUHAN JAMUR Colletotrichum gloeosporioides rosyida, risya
BUANA SAINS Vol 25, No 2 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i2.7328

Abstract

The pathogen Colletotrichum gloeosporioides causes anthracnose disease in cayenne pepper, which is difficult to control. It is expected to control the pathogen by using antagonistic fungi because it has the ability to stop its growth by means of antibiosis, parasitism, or competition. This study aims to test five isolates of antagonistic fungi for their ability to inhibit C. gloeosporioides, which causes anthracnose disease in cayenne pepper plants, and to identify the mechanism of inhibition in vitro. Inhibition and antagonistic mechanisms were used in the study. Each test used a full-randomized design. The antagonistic fungi used were Aspergillus sp., Penicillium sp., Gliocladium sp., Nigrospora sp., and Trichoderma sp., each repeated five times. The results showed that, compared to the other fungi, the antagonistic fungal isolate Trichoderma sp. had a high inhibitory ability (74%). The three isolates of antagonistic fungi have antagonistic mechanisms against C. gloeosporioides, namely Aspergillus sp., Gliocladium sp., and Trichoderma sp. In addition, isolates of Gliocladium sp., Nigrospora sp., and Trichoderma sp. also have parasitism ability, while Aspergillus sp., Penicillium sp., and Trichoderma sp. have antibiosis mechanisms against C. gloeosporioides. Antagonistic fungal isolates that have the most potential to be developed as biological agents for anthracnose control in cayenne pepper plants, namely Trichoderma sp.
ANALISIS SIFAT MEKANIK DAN TERMAL PADA REAKTOR BIODIESEL DENGAN MENGGUNAKAN METODE FINITE ELEMENT ANALYSIS (FEA) Fikri, Ahmad; Muarif, Agam; Razi, Ar; Syahrani, Irma; Ashari, Muhammad Rayhan
BUANA SAINS Vol 25, No 2 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i2.6281

Abstract

This study aims to analyze and evaluate the Structural and Thermal Performance of a Biodiesel Reactor using Finite Element Analysis (FEA) simulation. The reactor was designed using Autodesk Fusion 360 and simulated under various static pressure conditions (10, 40, 100, 150, and 170 bar) and thermal loads (27, 100, 500, 1000, and 1600°C) using three stainless steel materials: AISI 202, AISI 304, and 316L. The results indicate that the maximum allowable operational pressure for SS 316L and AISI 405 is 40 bar, with corresponding deformations of 68×10⁻³ mm, 62×10⁻³ mm, and 64×10⁻³ mm respectively. Stress and deformation values showed a direct correlation with applied pressure. Thermal analysis revealed thermal gradients ranging from 2×10⁻³ to 100×10⁻³ (°C)/mm and heat flux values between 2.72×10⁻⁵ and 200×10⁻⁵ W/mm across all materials. The study demonstrates that increasing external temperature directly enhances both thermal gradient and heat flux distribution throughout the reactor structure..
STRATEGI KEBIJAKAN SEKTOR PERTANIAN DALAM MENDUKUNG PENINGKATAN INDEKS KETAHANAN PANGAN PADA ASPEK KETERSEDIAAN PANGAN DI PROVINSI KEPULAUAN RIAU Kawasi, Brian
BUANA SAINS Vol 25, No 2 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i2.6770

Abstract

The aim of this research was to analyze the effectiveness of agricultural sector policies in improving the Food Security Index (IKP), particularly in terms of availability, in the Riau Islands Province, which is one of the provinces with the lowest IKP in Indonesia. The study employed a mixed-methods approach with a descriptive-analytical design. Primary data were collected through a structured questionnaire administered to 25 experts and policymakers in the food and agriculture sector. Secondary data were obtained from Bapanas and BPS. Data analysis was conducted using a scoring technique (1-10) for six policy alternatives based on the criteria of effectiveness, efficiency, and long-term impact, followed by an Avoid-Shift-Improve (ASI) analysis. The scoring results showed that the market access improvement policy achieved the highest score (110), followed by food reserve strengthening (106). The ASI analysis indicated that all policies fell into the improve category, with food reserve strengthening having the highest Improvement score (9). Key findings revealed that the root cause of low food availability is an extreme dependence on imports (exceeding 90% for some commodities) and a weak distribution infrastructure. This research provides empirical evidence of measurable policy priorities for the island context. Its strategic recommendation is to integrate strengthening distribution logistics (market access) with optimizing community-based food reserves as a short-term measure, while encouraging technology-based local food diversification in the long term.
ANALISIS PENGARUH TINGKAT ADOPSI TEKNOLOGI PERTANIAN TERHADAP PENINGKATAN PRODUKTIVITAS PADI DI NIAS SELATAN Zega, Ujianhati
BUANA SAINS Vol 25, No 2 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i2.7570

Abstract

Enhancing rice productivity is vital for food security in developing regions. This study analyzes the adoption of high-yield varieties (HYVs) and agricultural machinery among rice farmers in South Nias and evaluates their impact on yields. Employing a mixed-methods approach, data were collected via a survey of 214 purposively sampled farmers, supplemented with in-depth interviews. The results indicate low adoption rates: only 25% of farmers use HYVs, and approximately 20% use machinery. Key barriers identified include limited access, high costs, and insufficient technical information and training. Despite these challenges, statistical analysis confirms that the adoption of both technologies has a significant positive effect on rice productivity. Farmers using these technologies achieved markedly higher yields compared to non-adopters. The study concludes that the potential of agricultural technology remains underutilized in South Nias due to critical access and knowledge gaps. 
PENGARUH APLIKASI PUPUK N DAN BIOCHAR TERHADAP KELIMPAHAN POPULASI COLEOPTERA PADA LAHAN KOMODITAS SORGUM Lende, Aristo Kristian; Wibowo, Dennis; Agastya, I Made Indra; Hamzah, Amir; Pramana, Bintang Arya
BUANA SAINS Vol 25, No 2 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i2.6980

Abstract

Coleoptera play a crucial role in maintaining the balance of agroecosystems through decomposition, nutrient cycling, and biological control. This study aimed to examine the effects of nitrogen (N) fertilizer and rice husk biochar on Coleoptera population abundance in a sorghum (Sorghum bicolor L.) plantation. Conducted at UNITRI Science Technopark, the experiment used a Randomized Complete Block Design with eight treatment combinations of N fertilizer (0, 100, 150, 200 kg/ha) and biochar (5 tons/ha), replicated three times. Coleoptera specimens were collected using pitfall traps and analyzed with ANOVA and DMRT. Results demonstrated that N fertilizer variation had no significant effect (p0.05) on Coleoptera abundance, while biochar application consistently and significantly increased individual counts (p0.05). From 1,533 identified individuals belonging to 11 morphospecies, the distribution was nearly balanced between natural enemies (777 individuals) and other insects. Biochar enhanced soil insect abundance by improving habitat quality, indicating its positive role in supporting Coleoptera populations and its potential as a key component of biodiversity conservation-based sustainable soil management.
ANALISIS EFISIENSI TEKNIS USAHA TANI KELAPA SAWIT PENDEKATAN FUNGSI PRODUKSI STOCHASTIC PRONTIER Marjoni, Stepanus Joni; Suyatno, Adi; Maswadi, Maswadi
BUANA SAINS Vol 25, No 2 (2025)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v25i2.7426

Abstract

Independent oil palm farmers in Landak Regency face challenges in managing production inputs, such as suboptimal fertilization schedules, types, and dosages, which may affect productivity and technical efficiency. This study aims to analyze the technical efficiency of independent oil palm farming in Landak Regency using a stochastic frontier production function approach. The study employed a quantitative approach with a purposive sampling technique, involving 50 independent oil palm farmers. Data were analyzed using the stochastic frontier production function with Maximum Likelihood Estimation (MLE). The average technical efficiency of independent oil palm farming in Landak Regency was 0.921 (92.1%). Input variables such as land area, dolomite fertilizer, and labor had a significant positive effect on production, while NPK fertilizer and herbicide did not show significant effects. Inefficiency factors such as farmer age, education, and experience were not statistically significant. Independent oil palm farming in Landak Regency is technically efficient. To enhance productivity, farmers are encouraged to optimize the use of land, dolomite fertilizer, and labor, while improving NPK fertilizer dosage and pesticide application practices.

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