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Fauzia Variansiana; Sartari Entin Yuletnawati

Jurnal Ilmu Kesehatan 2026 Lembaga Pengembangan Kinerja Dosen

Geographic tongue or benign migratory glossitis is a benign disorder of the oral mucosa that is relatively common in dental practice. This condition is characterized by erythematous areas caused by the loss of filiform papillae surrounded by irregular white borders. To understand the clinical characteristics of geographic tongue and the contributing factors involved in the development of the lesion in order to establish an appropriate diagnosis and provide adequate patient education. A 25-year-old female patient presented with complaints of patches on the tongue for approximately two months. The patient had been following an OMAD (One Meal A Day) diet for one year and reported an allergy to white rice. The patient also had a history of psoriasis. Nutritional deficiencies such as vitamin B complex, vitamin B12, folic acid, iron, and zinc may affect the integrity of the oral mucosa and disrupt the regeneration of the lingual epithelium. These conditions may lead to atrophy of the filiform papillae, resulting in the characteristic erythematous appearance of geographic tongue. In addition, immunological and inflammatory factors associated with psoriasis are also suspected to contribute to lesion development. Geographic tongue is a benign inflammatory condition with a multifactorial etiology, including nutritional deficiencies and immunological factors such as psoriasis. Evaluation of systemic conditions and nutritional status is important to support accurate diagnosis and proper patient management.

Nevida Wiehelmina Fanggidae; Anita Lidesna Shinta Amat; Sangguana Marthen Jacobus Koamesah; Syahrir Syahrir

Jurnal Riset Rumpun Ilmu Kedokteran 2026 Pusat riset dan Inovasi Nasional

Background: Acne vulgaris is one of the most common skin problems and is closely associated with the activity of Propionibacterium acnes. Long-term use of antibiotics may lead to bacterial resistance; therefore, alternative antibacterial agents derived from natural products are needed. White rice (Oryza sativa L.) is known to contain bioactive compounds such as flavonoids, alkaloids, terpenoids, tannins, and saponins, which potentially exhibit antibacterial activity. Objective: This study aimed to evaluate the antibacterial activity of ethanol extract of white rice against the growth of Propionibacterium acnes. Methods: This research was conducted as a laboratory experimental study using a post-test only control group design. The ethanol extract of white rice was prepared by maceration using 70% ethanol. Antibacterial activity was evaluated using the disc diffusion method with extract concentrations of 100%, 50%, 25%, 12.5%, and 6.25%. Clindamycin was used as a positive control, while sterile distilled water served as a negative control. The parameter observed was the diameter of the inhibition zone. Result: The results of phytochemical screening showed that the ethanol extract of white rice (Oryza sativa L.) contains flavonoids, alkaloids, and terpenoids. Antibacterial activity test showed that the ethanol extract of white rice at concentrations of 100%, 50%, and 25% was able to inhibit the growth of Propionibacterium acnes by forming an inhibition zone, while at concentrations of 12.5% and 6.25% no inhibition zone was formed. The highest inhibition zone diameter was found at a concentration of 100%. The ethanol extract of white rice at concentrations of 100% (7.65 mm), 50% (6.77 mm), and 25% (6.15 mm) was able to inhibit the growth of Propionibacterium acnes, and was classified as having moderate inhibition. In contrast, at concentrations of 12.5% and 6.25%, the ethanol extract of white rice did not show any inhibitory activity detected in vitro using the disc diffusion method. The results of statistical analysis showed a p value <0.001, which means there was a significant difference in the diameter of the inhibition zone between the treatment groups. Conclusion: In conclusion, the ethanol extract of white rice exhibits antibacterial activity against Propionibacterium acnes in a concentration-dependent manner; however, its inhibitory effect remains lower than that of clindamycin.

Eko Apriliyanto; Sarno Sarno

Jurnal Teknologi Pangan dan Ilmu Pertanian 2026 International Forum of Researchers and Lecturers

The quality of rice that is suitable for consumption, one of which is determined by the absence of associated components when the rice is in storage. Rice storage is carried out by means of long shelf life and good rice quality. Damage to rice due to pest attacks causes a decrease in quality and quantity. Environmentally friendly efforts are needed to control the rice weevil Sitophilus oryzae using vegetable materials. This study sought to ascertain the death rate of rice weevils treated with lemongrass stem (Cymbopogon citratus), bay leaves (Syzygium polyanthum), and pandan leaves (Pandanus amaryllifolius). The study employed a fully randomized design with three treatments in the form of simplicia plant components. There were 21 study units because each treatment included seven repetitions. Each treatment used 20 rice weevil imago breeding results which were infested in a jar containing 200 g of rice for 4 weeks in the laboratory. The use of pandan leaf, bay leaf, and lemongrass simplicia at 7 days after treatment showed the proportion of rice weevil mortality was 59,29%, 39,29%, and 50,00%, respectively. As for the observations of 14 day after treatments, 21 day after treatments, and 28 day after treatments showed that the mortality rate of all rice beetles was above 50%. Regarding the percentage of rice powder, hollow rice, and rice weight loss, the findings of observations on rice weevil mortality did not reveal any significant variations across all treatments.

Indah Muliati; Putri Mulia Berlian; Salma Nahendra; M. Faiz Asral Ramadhan; Farrel Fahreza

Jurnal Pengabdian kepada Masyarakat 2026 Lembaga Pengembangan Kinerja Dosen

The Padang State University Community Service Program (KKN) in Jorong Koto Tingga, Nagari Sirukam, Payung Sekaki District, Solok Regency, West Sumatra, implemented a public space revitalization program through the construction of a creative garden based on rice field views. This program was created in response to the lack of representative public spaces and the decline in social interaction between residents due to modernization. Using a participatory approach, the community and youth of the jorong were involved in every stage, from planning, land clearing, to the construction of seating facilities overlooking the expanse of rice fields. As a result, the empty land was successfully transformed into a functional, aesthetic, and locally valuable public space. The high level of community participation demonstrated the success of the approach implemented and fostered a sense of ownership of the park being built. This program is expected to become a model for revitalizing public spaces based on local potential for other rural areas. Although the construction was not fully completed when the KKN program ended, the community and youth of Jorong Koto Tingga are committed to continuing it independently. This program is expected to become a model for revitalizing public spaces based on local potential for other rural areas with similar characteristics.

Dhafin Fathur Rozi; David Sukardi Kodrat

Journal of Management and Social Sciences (JIMAS) 2026 Sekolah Tinggi Ilmu Administrasi (STIA) Yappi Makassar

The increase in internet users in Indonesia presents a significant opportunity for business actors to market products through digital marketing, which allows transactions anytime and anywhere and influences purchasing decisions through complete and real-time product information. In addition, impulsive buying behavior, especially in areas like Ponorogo, which is rich in quality rice products with attractive discounts, also contributes to increased sales, impacting customer satisfaction, loyalty, and long-term customer value. Therefore, this study aims to examine the influence of digital marketing, product information, and impulse buying on purchasing decisions, as well as the ability of purchasing decisions to mediate the effect of digital marketing, product information, and impulse buying on marketing performance. This study uses a quantitative approach with a research sample of 104 respondents who are consumers of rice products in the Legi Ponorogo market. The data collection technique employed a questionnaire distributed online. The data analysis technique used is SEM PLS. The results of the study indicate that digital marketing and product information affect purchasing decisions, whereas impulse buying does not affect purchasing decisions. Furthermore, purchasing decisions have an impact on marketing performance. The results of the indirect effect show that purchasing decisions mediate the influence of digital marketing and product information on marketing performance, while purchasing decisions do not mediate the influence of impulse buying on purchasing decisions.

Sri Hartatik; Mayla Salwa Kharmelia; Annisa Dwi Aulia; Abdullah Zarkasi; Gagat Subroto +1 more

Jurnal Pengabdian Masyarakat Terapan 2026 Lembaga Pengembangan Kinerja Dosen

Kemuning Lor Village, Jember Regency, has significant potential in the agricultural and livestock sectors; however, the utilization of agricultural, livestock, and household waste remains suboptimal. Waste such as rice straw, animal manure, and household refuse is generally not processed effectively, leading to environmental pollution and the loss of potential economic value.

Neng Yuliani; Rasti Rahmadinah; Khikmawanto Khikmawanto

Lembaga Pengembangan Kinerja Dosen 2026 Lembaga Pengembangan Kinerja Dosen

This study aims to analyze the implementation of public policies in improving community welfare through the Direct Cash Assistance (BLT) Program, the Subsidized Direct Cash Assistance (BLTS), and rice distribution managed by the State Logistics Agency (BULOG) in Cipete Village. The research method used is a descriptive qualitative approach. Data collection techniques were carried out through interviews with policy implementers and beneficiary communities, direct observation of the aid distribution process, and review of relevant official documents and data. The results show that the BLT and BLTS programs play a significant role in helping low-income communities meet their basic needs and increasing household purchasing power, especially during unstable economic conditions. Meanwhile, rice distribution by BULOG supports community food security by providing access to staple foods at prices lower than market rates. Despite the positive impacts, the implementation of these three programs still faces various obstacles, including inaccurate beneficiary targeting due to imprecise and rarely updated data, delays in the distribution process, lack of information transparency, and suboptimal inter-agency coordination. Based on these findings, improvements are required, such as developing an integrated and technology-based data system, increasing information disclosure to the public, strengthening monitoring and periodic evaluation systems, and enhancing cooperation among related institutions. Optimizing the implementation of these social assistance programs is expected to create sustainable, equitable, and targeted improvements in community welfare.

Muhammad Ramadhani Rahman; Kurnia Putri Dinanti; Nabila Maulidia Fatahillah; Ahmad Zaidan Wahab; Sendi Hendiawan Prayogo

Jurnal Riset Rumpun Ilmu Teknik 2026 Pusat riset dan Inovasi Nasional

The problem of urban flooding is a growing issue due to high population density, increasing volumes of plastic waste, and the reduction of water absorption areas. The use of conventional paving blocks, which are impermeable, further exacerbates flooding conditions because they do not allow water to infiltrate into the soil. This study aims to develop an innovative plastic waste-based paving block incorporating rice straw and sugarcane bagasse, along with the integration of phytoremediation concepts as a solution for urban flood mitigation. The method employed was an experimental approach involving the following stages: material preparation, plastic incineration, material mixing, molding, and testing of water absorption capacity and compressive strength. The results showed that paving blocks with a combination of plastic waste, rice straw, and sugarcane bagasse had the highest water absorption rate of 34% and compressive strength of 21 kg/cm², meeting SNI standards. The addition of natural materials containing silica was proven to enhance the material’s porosity and strength. Additionally, the application of phytoremediation using water hyacinth has the potential to improve the quality of water seeping into the soil. Thus, this phytoremediation-based paving block innovation can serve as an effective alternative solution to reduce flood risks while supporting sustainable waste management and environmental stewardship.

Nurkhalishah Malik; Citra Kesumasari Yaksan; Rosmini Rosmini

Jurnal Ilmu Kesehatan dan Gizi 2026 Pusat Riset dan Inovasi Nasional

This study aims to analyze the extent of the effect of honey bee pollen supplementation on increasing appetite and body weight in anemic children. The type of research used in this study is an experimental study with a pre- and post-test one-group design. The research sample consisted of 52 anemic fourth- and fifth-grade elementary school students. The average total food intake (Yellow Rice) showed a significant result (P=0.000), increasing from 241.40±94.334 g to 354.94±122.57 g after the final measurement of ad libitum appetite. The average body weight also showed a significant result (P=0.00), with a mean of 23.59±5.29 kg at pre-test and rising to 24.65±5.58 kg at post-test. The Z-Score calculation for weight-for-age based on the WHO NCHS reference showed a non-significant result: P=0.0180 (0.01±0.04) at pre-test and 0.03±0.08 at post-test. Based on the 24-hour recall analysis over two days, a significant result was obtained (P=0.000), with total energy intake of elementary school students increasing from an average of 1,594±420.17 kcal before intervention to 2,070.2±491.77 kcal after two months of intervention. After statistical testing (Paired T-Test), a P-value of 0.00 (<0.05) was obtained. It can be concluded that the administration of honey bee pollen for 8 weeks at a dose of 25 grams per day significantly increased appetite and body weight in anemic elementary school children.

Nursyva Alvira Sumara; Desi Sri Pasca Sari Sembiring; Hanifah Mutia Zaida Ningrum Amrul

Jurnal Riset Rumpun Ilmu Tanaman 2026 Pusat riset dan Inovasi Nasional

The purpose of this study was to determine how the application of Local Microorganisms (LOM) from stale rice and oil palm boiler ash impacts the growth and production of shallots (Allium ascalonicum L.) and to determine the interaction between the two treatments. Shallots are a horticultural commodity with high economic value, so efforts are needed to increase production through the use of environmentally friendly organic materials. The study used a factorial Randomized Block Design (RBD) with two factors and three replications. The first factor was LOM from stale rice with four levels (0, 20, 40, and 60 ml/L water/plot) and the second factor was oil palm boiler ash with four levels (0, 500, 1000, and 1500 grams/plot), resulting in 16 treatment combinations and 48 experimental plots. The parameters observed included plant height, number of leaves, number of tillers, fresh weight of bulbs, dry weight of bulbs, and bulb diameter. If there was a significant effect, the data were tested using analysis of variance (ANOVA). This research is expected to produce scientific data on the use of organic waste as an environmentally friendly fertilizer alternative.

Anisa Fatihah; Hendry Frananda

Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa 2026 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

The objectives of the study are: 1) To analyze the level of vulnerability of agricultural land to flash floods in Nagari Pauh Kamang Mudiak, 2) To analyze the condition of agricultural land in Nagari Pauh Kamang Mudiak before and after the flash flood. The results of this study: 1) Analysis of the level of vulnerability of agricultural land to flash floods in Nagari Pauh Kamang Mudiak, namely in the safe class covering an area of 8.34 hectares, the non-vulnerable class covering an area of 12.01 hectares, the vulnerable class covering an area of 51.91 hectares and the very vulnerable class covering an area of 18.13 hectares. This shows that most of the research areas have a high level of vulnerability to flash floods. Furthermore, the analysis of flash flood risks with 4 risk classifications is an area with a low risk of 16.94 hectares, a moderate area of 30.60 hectares, a high area of 37.78 hectares, and a very high area of 5.07 hectares. Based on the results of this analysis, the agricultural land most affected by the flash flood in Nagari Pauh Kamang Mudiak is rice fields covering an area of 72.2 hectares, 2) Analysis of the condition of agricultural land vegetation in Nagari Pauh Kamang Mudiak before and after the flash flood, namely with 5 classes, namely the very low greenness class covering an area of 12.69 hectares, low covering an area of 29.69 hectares, medium covering an area of 13.22 hectares, and high covering an area of 34.84 hectares. The results of the accuracy test using overall accuracy reached a suitability of 89.58% and the kappa coefficient reached a suitability of 84.32%, meaning good accuracysuitability between the classification results and actual conditions in the field.

Amalia, Syaffira Rizky; Hamdani, Hamdani; Septiarini, Anindita

International Journal of Applied Mathematics and Computing 2026 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Rice plants (Oryza Sativa L.) are the main staple food commodity in Indonesia, as most of the Indonesian population relies on rice as their primary food. One of the causes of low rice production in Indonesia is that farmers generally cultivate rice improperly, such as in land preparation or land selection. Land suitability in rice cultivation greatly affects crop productivity. A process that can support decisions regarding rice land suitability is the development of a Decision Support System (DSS) website using a combination of the Simple Additive Weighting (SAW) method and the Technique for Order Performance of Similarity to Ideal Solution (TOPSIS). This combination is performed by taking the average (µ) of the final results from the SAW and TOPSIS methods. The final scores of each method are calculated separately, and then the average (µ) of these two results is taken to obtain the final ranking of the alternatives. The data used to determine the suitability of rice land is based on five criteria: soil type, soil pH, rainfall, temperature, irrigation and water supply. The alternative data used in the study includes six alternatives: Sungai Kunjang, Sambutan, Samarinda Utara, Palaran, Loa Janan Ilir, and Samarinda Seberang. The aim of this research is to provide information on alternative solutions to farmers or farmer groups in determining rice land suitability. The results of the combination of the SAW and TOPSIS methods show that the alternative with the highest final score is Samarinda Utara (A3), with a final score of 0.7337. Meanwhile, the alternative with the lowest final score is Sambutan (A2), with a final score of 0.4402.

Arsita, Three; Komariyati Komariyati; Nugraha, Aditya

Jurnal Riset Rumpun Ilmu Tanaman 2026 Pusat riset dan Inovasi Nasional

The agricultural sector plays a strategic role in meeting food needs while maintaining environmental sustainability and community welfare. However, conventional farming practices that rely on chemical inputs have caused various problems, such as soil degradation, loss of biodiversity, and environmental pollution. This condition has encouraged the adoption of the Sustainable Agriculture concept, which emphasizes a balance between ecological, economic, and social aspects. Its successful implementation is strongly influenced by farmers’ perceptions as the main actors. This study aims to analyze rice farmers’ perceptions of the implementation of Sustainable Agriculture in swampy areas of Tebas District, Sambas Regency. The research was conducted from October to November 2025 using a survey method involving 95 farmers selected through the Slovin formula and proportional random sampling technique. Data were collected through observation, interviews, and Likert-scale questionnaires, and analyzed using descriptive analysis and binary logistic regression. The results show that farmers’ perceptions are generally positive, particularly regarding water management, variety selection, and cropping patterns. However, the use of organic fertilizers, environmentally friendly pest control, and post-harvest management are still considered difficult. Education level and non-farming occupations significantly influence farmers’ perceptions. Therefore, enhancing extension services, training, and support for business diversification is necessary to promote the adoption of Sustainable Agriculture.

Firmansyah, Mohammad; Ilyatul Afifah; Laila Kamali

Jurnal Pengabdian kepada Masyarakat 2026 Lembaga Pengembangan Kinerja Dosen

The synchronization of physical and juridical land data is a fundamental prerequisite for ensuring legal certainty in every land rights transfer process. Discrepancies between physical field conditions and juridical documents frequently trigger land disputes that impede the performance of Notary/PPAT offices. This community service article reports on a Field Practice (PPL) activity conducted at the Office of Notary/PPAT in Jember Regency during January–February 2026. The primary objective was to provide technical assistance in accelerating physical-juridical data synchronization to guarantee the validity of issued deeds. The method employed was participatory observation, in which students were directly engaged in the partner's workflow. Assistance activities covered document inspection, file digitization, coordination with BPN and tax authorities, and factual field verification. Results indicate that PPL student assistance measurably accelerated the office's administrative workflow, enhanced data validation accuracy, and confirmed conformity between the physical condition of rice-field land and the certificate documents.

Ekadipta Ekadipta; Chriswahyudi Chriswahyudi; Raga Patih Andika Putra; Babay Jutika Cahyana

Jurnal Manajemen Kewirausahaan dan Teknologi 2026 Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Ramadan brings significant changes in the shopping and consumption patterns of Indonesians. There is an increase in demand for various types of food and beverages, both for sahur and iftar. The purpose of this study is to map the characteristics of food and beverage purchasing and consumption patterns in a seasonal context (Ramadan): strategic implications for UMKM in the Greater Jakarta area. The research design used is descriptive quantitative with data collection techniques implemented by distributing questionnaires. Then, the questionnaire answers are summarized to obtain the frequency distribution of each item in the questionnaire. The population of this study is people domiciled in the Greater Jakarta area. The sample size was determined using the Lameshow formula, resulting in a sample of 100 respondents spread across the Greater Jakarta area. The majority of respondents, namely 92%, stated that they experienced changes in their shopping patterns during Ramadan. The type of food purchased changed (34%) was the most dominant change. The most dominant consumption purchasing decision during Ramadan was the practicality in preparing food (40%), with favorite shopping places being traditional markets (24%) and street vendors (24%). In a consumption analysis, 83% of respondents experienced changes in their consumption patterns during Ramadan, with the most dominant change being in the amount of food consumed (29%). During sahur (pre-dawn meal), respondents tended to consume vegetables (36%) and chicken (22%). Meanwhile, fried foods (38%) and rice cakes (rice cakes) were the favorite dishes for breaking the fast.

Maria Wesso; Agustina Waromi

Riset Ilmu Manajemen Bisnis dan Akuntansi 2026 Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

This study aims to analyze the marketing strategy of Betet Rice at Toko Cendrawasi Fakfak. The research uses a qualitative approach with data collection methods including field research, interviews with managers and employees, observations on sales data management, and documentation. The data were analyzed using marketing mix analysis and SWOT analysis. The results show that Betet Rice is distributed directly to customers through Toko Cendrawasi Fakfak, which acts as a distributor of the product. Toko Cendrawasi has made efforts to provide significant market access for Betet Rice marketing, with products and prices adjusted to customer desires and purchasing power. The marketing strategy used involves the marketing mix of product, price, promotion, and distribution, which has led to an increase in demand for Betet Rice every year. Based on the SWOT analysis, the marketing strategy implemented includes strengths in strong financial conditions and a fleet of ships, weaknesses in the lack of attention to key marketing elements, opportunities in market analysis and customer segmentation, and threats from increasing competition and globalization of competitors offering similar products.

Darmawansyah Darmawansyah; Bambang Sulistyo; Henry Farizal

Venus: Jurnal Publikasi Rumpun Ilmu Teknik 2026 Asosiasi Riset Ilmu Teknik Indonesia

The conversion of agricultural land to non-agricultural land continues to increase along with the pressures of urbanization, industrialization, and settlement expansion. This condition poses risks to food security, environmental sustainability, and farmer welfare. This article reviews literature based on 25 abstracts/research results on LP2B in Indonesia to map policy implementation patterns, the relationship between LP2B and regional spatial planning, inhibiting factors, and the direction of policy strengthening. The method used is a narrative review with thematic synthesis of normative legal studies, juridical-empirical, qualitative, mixed methods, and spatial-quantitative approaches. The results of the review indicate: (1) LP2B is highly dependent on the harmonization of spatial planning policies, especially RTRW/RDTR and licensing mechanisms based on KKPR-OSS; (2) many regions are still stuck at the land inventory-identification stage, not yet reaching the determination and operational protection through LP2B Regional Regulations; (3) dominant obstacles include regulatory asynchronous, weak law enforcement, minimal cross-agency coordination, limited data by name by address, suboptimal socialization, and conflicts of interest in non-agricultural development; (4) incentive-disincentive instruments have not been implemented consistently, although socially farmers tend to accept LP2B protection; and (5) quantitative evidence at the national level shows that LP2B policies have a positive effect on the percentage of rice fields, despite being suppressed by population density and real estate sector growth. This article emphasizes the need for an integrated spatial governance approach, strengthening regional institutions, and designing policies that are socially and environmentally just to ensure that LP2B is effective in maintaining regional food security.

Shahiban Muzaki

Prosiding Seminar Nasional Ilmu Teknik 2026 Asosiasi Riset Ilmu Teknik Indonesia

Improper water management in rice cultivation can lead to water stress, which reduces productivity. Conventional monitoring has limitations on large-scale lands, necessitating more efficient remote sensing technologies. This study aims to develop a water stress identification system for rice plants in the late vegetative phase using multispectral drone imagery integrated with an Artificial neural network (ANN). The research method employs an experimental approach with six water availability levels in Karyamukti Village, Sumedang. Field reference data were obtained through soil moisture sensors converted into Available Water (AW) values. Image processing stages included orthomosaic reconstruction, leaf object segmentation, and transformation of vegetation indices (NDVI, NDRE, GNDVI, etc.) as model inputs. The results show that the ANN model with a four-hidden-layer architecture achieved training and validation accuracies of 94–95%. In the independent testing phase, the model produced an accuracy of 94.60% with an F1-Score of 93.33%. Spatial visualization of the prediction results indicates a consistent water condition distribution across rice plots. In conclusion, the integration of multispectral drones and ANN provides an accurate non-destructive solution for spatial monitoring of water availability in rice plants.

Dani Hardianti; Dian Hafizah; Hasnah Hasnah

Jurnal Riset Rumpun Ilmu Tanaman 2026 Pusat riset dan Inovasi Nasional

The factors influencing lowland rice production in Padang City are the focus of this study. The study was conducted through a field survey of lowland rice farmers to obtain primary data relevant to farming activities. The analysis method used was multiple linear regression with the dependent variable being lowland rice production (Y) and independent variables including land area (X₁), seeds (X₂), fertilizer (X₃), labor (X₄), and farming experience (X₅). The research findings show that simultaneously all production factors, including land area, seeds, fertilizer, labor, and farming experience, have a significant effect on lowland rice production in Padang City. Partially, the variables of fertilizer and labor have a significant effect on lowland rice production, while land area, seeds, and farming experience have no significant effect. These findings indicate that the increase in lowland rice production in Padang City is more determined by input intensification efforts, particularly through appropriate fertilization and labor availability, compared to land expansion. As a result, agricultural policies need to be directed at increasing input efficiency to support the productivity and sustainability of rice farming.

Hilmawan Praja Adil Mukti; Hana Nisrina Rafid; Murjiyati Ningrum; Hulfa Istikomah

Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 2026 Asosiasi Riset Ilmu Teknik Indonesia

The increasing demand for housing in tropical regions requires building materials that are fast to apply, environmentally friendly, and resilient to extreme climate conditions as well as disaster risks. Conventional interlocking bricks are often chosen for their ease of construction, yet they still face challenges such as moisture and early cracking. This study proposes the innovation of the Hybrid Living Green Brick, a combination of lightweight bricks made from rice husk ash and fly ash waste (FRCB) with a biological layer of cyanobacteria. FRCB improves compressive strength by approximately 30% with the addition of 5% rice husk ash, achieving 65 kg/cm², thereby meeting Class 50 requirements (≥50 kg/cm²) according to SNI-15-2094-2000. The incorporation of 3% cyanobacteria provides an additional though not significant strength improvement, while still within the Class 50 category. It also reduces brick weight by 4.3%, with further optimization potential through cyanobacteria integration, and lowers carbon emissions from the firing process. Cyanobacteria induce the formation of CaCO₃ layers that seal pores, reduce water absorption by an average of 10%, and provide self-healing properties for microcracks. Preliminary observations indicate that FRCB offers stable mechanical performance, while biological activity was observed on the 7th day with the formation of pale-white mineral layers continuing until the 28th day. This hybrid innovation shows potential to support sustainable and disaster-resilient tropical construction by combining the mechanical strength of waste-based materials with the biological durability of cyanobacteria against extreme climates. Despite challenges related to moisture control and production standardization, the Hybrid Living Green Brick concept opens new pathways for developing environmentally friendly construction materials that are more adaptive to disaster-prone tropical conditions.