bluuebunny/crossref_metadata_2025_split huggingface dataset:
The bioaccumulation of heavy metal on Tilapiah (Oreochromis niloticus) on traditional tidal ponds for aquaculture in the vicinity of the Terjun landfill in Medan
Authors: Harpah N , Egidia V , Manalu S P , Sari Y A , Herlina N , Anggraini D , Fadhila  
Published: December 2024

Abstract
This study conducted in an aquaculture area near the Terjun landfill, an open dumping system in the Medan Marelan District. The objective of this study is to examine the levels of lead (Pb) and cadmium (Cd) in fish and water, and to determine the bio-concentration capacity of these metals in tilapia fish (Oreochromis niloticus) throughout both the wet and dry seasons. Water samples were collected from each pond as well as from tilapia fish (Oreochromis niloticus). The sampling method for water and fish is based on the Indonesian National Standard. Analytical assessment of the presence of metal in both the water and meat of tilapia fish (Oreochromis niloticus) was conducted utilising atomic absorption spectroscopy (AAS). The research findings indicate that the water quality in the pond water has surpassed the water quality standards of PP No. 22 of 2022. The levels of lead (Pb) and cadmium (Cd) in tilapia (Oreochromis niloticus) meat are also higher than what is allowed. Furthermore, the results of the BCF study indicate that tilapia’s bioconcentration factor (BCF) for Pb metal exceeds that of Cd metal. Furthermore, the season has a significant impact on tilapia’s BCF (bioconcentration factor) for metals such as Pb (lead) and Cd (cadmium), with the highest BCF value observed during the dry season. The difference is caused by variations in the water solubility of the metals Pd and Cd, as well as the duration of time that the fish are exposed to the metals.
Sustainability analysis of cassava through mix organic with chemical fertilization system and the impact on farmer’s income in Dan Khun Thot, Nakorn Ratchasima Province, Thailand
Authors: Sabirin  , Darussalam A , Pramana Y S , Pudjianto K , Sari D P , Musa  , Putra O N , Supriyanti A 
Published: December 2024

Abstract
This study focuses on assessing cassava’s sustainability through implementing a mixed fertilization system, combining organic and chemical fertilizers. The study will also evaluate how this system impacts the income of farmers in Dan Khun Thot, Nakhon Ratchasima Province, Thailand. Cassava is notorious for its voracious nutrient absorption, and without sustainable cultivation management, it can lead to soil infertility. Understanding and implementing sustainable practices is vital for the long-term success of cassava farming and the financial well-being of farmers. Survey methods including interviews, matrix ranking, working calendar, soil test, implementation, and observation conducted this research. Based on a survey of 50 farmers from 5 villages in Dan Kun Thot (Ban Wang Paru Ngam, Ban NonSa-Ard, Ban Sub Prai, Ban Huay Bong, and Ban Pa Rung Ngam), it was found that 23% of the farmers used mixed fertilization and achieved a productivity of 4,021.7 kg/rai (1 rai = 0.16 ha). On the other hand, 27% of the farmers used non-mixed fertilization and achieved a lower productivity of 3,253.7 kg/rai, which is a 23.6% increase the implementation of mixed fertilization also increased farmers’ income by 28.45%, even though the total production cost increased by 10.25%.
The role of Acacia crassicarpa plantation forest in Peatland in reducing CO2 emissions
Authors: Ratnaningsih A T , Sukendi  , Thamrin  , Nasul B 
Published: December 2024

Abstract

Acacia crassicarpa is a fast-growing plant on peatlands that is capable of binding atmospheric CO2 and storing it in carbon. The study aims to calculate carbon stocks in Acacia crassicarpa plantations and their potential to absorb atmospheric CO2. The research was performed in an industrial plantation forest in Siak Regency, Riau Province. The observation plots employed stratified random sampling by measuring the height and diameter of Acacia crassicarpa aged 12, 24, 36 and 42 months, as well as the biomass of undergrowth and litter. Stored carbon was estimated by calculating tree biomass through the approach of specific gravity and trees volume, while for understory plants and litter was based on their dry weight. The results exhibited that Acacia crassicarpa aged 12, 24, 36 and 42 months had carbon stocks of 4.14 tons/ha, 18.55 tons/ha, 43.82 tons/ha and 69.39 tons/ha. The ability of the stand to absorb CO2 in the atmosphere is 15.23 tons/ha, 68.08 tons/ha, 160.81 tons/ha, and 254.67 tons/ha. The potential carbon stored in the understory stands at 0.64 tons/ha, 0.79 tons/ha, 0.85 tons/ha, and 0.86 tons/ha. The carbon stored in litter is 0.80 tons/ha, 1.27 tons/ha, 1.49 tons/ha, and 1.5 tons/ha.
Increasing shallot production with chitosan application to support food resilience in dry climate areas
Authors: Rahmawati N , Siahaan S 
Published: December 2024

Abstract
Shallots are an important ingredient in many dishes around the world, but their production can be challenging, especially in dry climates. Efforts to increase shallot production are carried out by applying chitosan which can increase plant resistance in drought conditions. This research aims to analysed the effect of concentration and time interval of chitosan administration on the growth and production of shallots in dry climate areas. The research design used was a randomized block design with two factors, namely chitosan concentration (0; 1; 2 and 3 g/L) and application time interval (10; 15 and 20 days). The study was conducted in 2023 between April and August at the research area of the Meteorology, Climatology and Geophysics Agency in Sampali Village, Deli Serdang Regency. The research results showed that the chitosan concentration had a noteworthy impact on the growth of leaves., while the interaction of concentration and application time interval significantly impacted the growth of the tuber’s diameter and dry weight. To increase shallot production in dry climates, it is recommended to use a 2 g/L concentration of chitosan an application interval of every 20 days.
Analysis of organic chemical compounds in Moringa oleifera L. using the gas chromatography-mass spectrometry method
Authors: Paat FJ , Ramadhan TS , Pinaria AG , Ogie TB , Ratag SP , Watung JF , Lengkong EF , Sompotan S , Pongoh J , Saroinsong D , Nurmawan W , Barai SA , Marimin  , Suharnoto Y 
Published: December 2024

Abstract
Using a unique approach, a study was adopted to identify the organic chemical content in Moringa oleifera leaves by utilizing GC-MS. The Integrated Research and Testing Laboratory of Gadjah Mada University (LPPT-UGM) conducted the research in Yogyakarta from April to June 2024, using leaf extracts of M. oleifera L. varieties from the Mapanget Barat district area of Manado City, North Sulawesi Province. The chromatogram data underwent quantitative and qualitative analysis to identify and enumerate the organic molecules that comprise secondary metabolites. The analysis of the GC-MS results revealed the existence of several secondary metabolite compounds in the Moringa oleifera leaf extracts, including Decanoic acid, ethyl ester; Dodecanoic acid, ethyl ester; Neophytadiene (3,7,11,15-tetramethyl-2-hexadecen-1-ol); Hexadecanoic acid, methyl ester; trans-13-octadecenoic acid (oleic acid) methyl ester; Hexadecanoic acid, ethyl ester; trans-13-Octadecenoic acid, methyl ester; Methyl stearate; Phytol; Ethyl 9,12,15-octadecatrienoate; Eicosanoic acid, methyl ester; and Diisooctyl phthalate. These compounds are classified as terpenoids and fatty acids and have the potential for use as biopesticides, providing a sustainable solution for pest control in agriculture. The most abundant compound identified was phytol, a terpenoid, with a retention area of 14.78%. The findings suggest that M. oleifera leaves contain different secondary compounds that might be used as agricultural biopesticides.
Genetic diversity of several local gogo rice cultivars from Batang Lubu Sutam District using RAPD (Random Amplified Polymorphic DNA) molecular markers
Authors: Wahyuni H , Alfi R , Daulay U Z , Fatoni R B M I 
Published: December 2024

Abstract
It is known that many farmers have abandoned local gogo rice in Padang Lawas Regency, because they have many shortcomings such as long maturity, low total grain count, and high plant height. However, in addition to its shortcomings, there are advantages such as resistance to stress. Characterization in plant breeding can be done in terms of agronomy, morphology, nutritional content, and molecular markers. Utilization through RAPD molecular markers is expected to identify characteristics of gogo rice plants so that genetic improvement can be carried out. This study aims to determine the diversity of genetic information of gogo rice from Padang Lawas Regency based on RAPD molecular markers. This study was conducted from October 2023 to April 2024. The genetic material in this study was 14 local gogo rice cultivars introduced. Samples of gogo rice cultivars were isolated and amplified using 2 RAPD primers, namely OPB 7 and OPD 2. The UPGMA cluster analysis method and PCoA analysis used MVSP software version 3.2. The results of amplification with 5 RAPD primers produced a percentage of polymorphic bands of 100%. The diversity of 14 local gogo rice cultivars is included in the moderate category with a similarity coefficient of 40%.
Morphological characteristics of seeds of four genotypes M2 Indigofera zollingeriana results of radiation from gamma rays on salinized soil to support sustainable feed availability
Authors: Hutasoit R , Purba E , Ginting S P , Hanafi N D 
Published: December 2024

Abstract
One high-quality variety of animal feed is called Indigofera zollingeriana. need to be developed to support feed availability. Currently, its development is hampered by limited land; one solution is the use of saline land. However, it is constrained by the availability of seeds that can grow and adapt well to saline land. This study aims to evaluate the production and morphology of mutant 2 (M2) I. zollingeriana seeds resulting from gamma-ray irradiation on saline soil. The research was carried out in a randomized block design (RBD) with four treatments of the M2 I. zollingeriana genotype resulting from gamma ray irradiation, consisting of 0, 100, 200, and 300 gray and six replications. Data were analyzed using ANOVA, and if there were significant differences, they were analyzed further using the Duncuns multiple range test (DMRT) in SPSS V.25. The study findings indicated that the maximum pod weight, quantity of pods on a tree, and seed production were found in the 300 Gy treatment (22.30 g/tree). It can be concluded that the M2 generation seeds of I. zollingeriana with an irradiation treatment of 300 Gy can be recommended as a seed source for development in saline soil.
The quality of chili (Capsicum annum L.) during storage after ozone water treatment
Authors: Putri D P , Artati D , Sukarta D , Sulanjana E , Histifarina D , Ma’muri  , Anggara C E W , Kuala S I , Apriyanto I F , Widodo T W , Desnilasari D 
Published: December 2024

Abstract
Chili is one of the main agricultural commodities. During the peak harvest season, there is an increase in chili production, so it is necessary to apply post-harvest handling technology to maintain the quality of chili, one of which is through the application of ozone technology. The object of this study is to evaluate the quality of chili (Capsicum annum L.) during storage after ozone water treatment. The material used in this study was curly chilies; the treatments used 2 types of storage temperatures (28 °C and 3 °C) and 2 types of washing processes (soaking and spraying). Observations were made on days 0, 7, and 14. Parameters observed included weight loss, moisture content, total bacteria, and total yeast. The results showed that the total bacteria value on day 7 decreased to 1 x 105 CFU/g. The total yeast of chilies with ozone treatment showed a significant reduction in total yeast compared to the control treatment. The weight loss of control chilies and washed chilies stored at room temperature after being stored for 14 days was in the range of 29.64% to 58.94%. The highest moisture content was obtained by spray treatment and stored at 3 °C.
The effect of different drying methods on phytochemicals, antioxidant activity and functional groups of dayak onion (Eleutherine bulbosa) extract
Authors: Sirajuddin M M , Rusman  , Suryanto E 
Published: December 2024

Abstract
Dayak onion, prized for its phenolic compounds, flavonoids, and antioxidants, finds applications in medicine and as a functional food. However, improper drying techniques can lead to the degradation of these valuable compounds. This research investigates the phytochemical content, antioxidant activity, and functional groups of Dayak onion extracts processed through freeze-drying and oven-drying methods. Fresh Dayak onions underwent both drying procedures and were subsequently evaluated for phenolics, flavonoids, flavanols, and antioxidant activity. The findings revealed that freeze-dried extracts contained higher concentrations of these phytochemicals compared to their oven-dried counterparts. Fourier Transform Infrared (FTIR) spectroscopy analysis showed no notable differences in the primary functional groups (OH and CH) between the two drying techniques. The study concludes that higher drying temperatures diminish phytochemical content and antioxidant activity, although both freeze-drying and oven-drying maintain functional groups. These results have implications for sustainable agricultural practices, indicating that optimal drying methods can enhance the health benefits of this agricultural product, supporting its use as a natural antioxidant and antibacterial agent in food and medicine while promoting environmentally sustainable farming practices.
Factors influencing the level of adoption of organic pesticides in red chili commodities
Authors: Supriana T , Maryunianta Y , Elvandari N 
Published: December 2024

Abstract
Farmers generally control red chili pests and diseases using inorganic pesticides, even though they have the opportunity to cultivate organically. However, only a few farmers are interested in doing so. This study aims to analysed the factors influencing the level of organic pesticide use in the research area. The location was determined purposively or intentionally. Sampling was conducted using the census method, involving the entire population of red chili farmers in the research area, totalling 95 farmers. The data used consists of primary and secondary data. Data analysis was conducted using the scoring scale method. Hypothesis testing was carried out using classic assumption tests. Subsequent tests used multiple linear regression methods, including tests of the coefficient of determination, simultaneous tests, and partial tests. The results showed that the level of organic pesticide application is in the high category. Factors that significantly influence the adoption of organic pesticides include land area, the role of extension agents, cosmopolitan level, and risk-taking ability. In contrast, factors such as age, education level, and income do not have a significant influence.
The influence of perceived usefulness in the technology acceptance model on the success of ERP implementation to support sustainability in North Sumatra’s palm oil companies
Authors: Junaidi K , Rahmanta  , Wibowo R P 
Published: December 2024

Abstract
The implementation of Enterprise Resource Planning systems plays a vital role in enhancing organizational efficiency and bolstering competitive advantage. However, implementing ERP systems in North Sumatra’s palm oil companies poses a significant challenge. The present research examines the influence of perceived usefulness on the outcomes of ERP implementation in the palm oil companies. The research employed a quantitative approach, analyzing data collected through surveys from 94 ERP users. PLS Structural Equation Modeling, implemented through the Smart PLS software, served as the primary analytical framework. Data analysis demonstrated that perceived usefulness is a significant predictor of successful ERP implementation among palm oil companies in North Sumatra, with a positive relationship observed between the two variables. The implementation of ERP has facilitated sustainable management practices, enabling a transition from manual management systems towards a Gen Z management approach in the palm oil industry. Additionally, the reduction in paper usage has helped mitigate environmental impact.
Design of web based pre-production managerial information system for horticultural product farmers
Authors: Harahap L A , Ramadhani R 
Published: December 2024

Abstract
When carrying out farming, it is necessary to take into account the need for seeds, fertilizers or pesticides that will be used before carrying out production in order to achieve optimal productivity. However, there are still many farmers who pay little attention to this managerial issue. Therefore, this research aims to build an information system that provides a web-based pre-production managerial calculation calculator. The method used is literature study. This research uses WordPress as a CMS that helps in building the desired website. Based on the results of this research, a web-based information system for calculating seed, fertilizer and specific needs has been successfully established and can run well. In building the counting system using the Counted Field Form feature version 1.2.10. Then on this website there is a Home Menu with submenus Calculate Seed Needs, Calculate Fertilizer Needs, and Calculate Pesticide Needs, Food Crops Menu with submenus Rice, Corn, Sorghum, Soybeans, Green Beans, Peanuts, Potatoes, Sago and Sweet Potatoes, Menu Fertilizer Info, and Pesticide Menu Info.
Study of Variations in Light Intensity and Length of Light Emitting Diode on the Growth and Productivity of Pak Choi Plants
Authors: Sigalingging R , Ritonga R A 
Published: December 2024

Abstract
Light Emitting Diode (LED) lamps are a type of lamp that can be used as a light source for plants. The colour of the light that is suitable for plant growth needs to be determined precisely to obtain optimal growth and productivity of Pak Choi (Brassica rapa L.). This research aims to obtain the best light intensity and duration of exposure to white LED grow lights for the growth and productivity of Pak Choi plants using rock wool as a growing medium. This research was conducted using experimental methods and a factorial completely randomised design (CRD). The first factor is the treatment of light intensity of 14 watts (I1), light intensity of 28 watts (I2) and light intensity of 42 watts (I3). The second factor is 10 hours of exposure (T1), 12 hours of exposure (T2) and 14 hours of exposure (T3). The research results showed that with a light intensity of 42 watts and a light duration of 14 hours, the best results were obtained for the parameters of chlorophyll content, plant height, number of leaves, leaf area, photosynthesis analysis and harvest index.
Fisheries-based ecotourism development in Singkil swamp wildlife reserve
Authors: Rohim N , Sulistiono  , Yulianda F , Muhtadi A , Rahmadani F 
Published: December 2024

Abstract
The Singkil Swamp Wildlife Reserve (SSWR) is the wildlife sanctuary located in Aceh Singkil Regency, Aceh Province. Being a peatland area, SSWR’s primary duties include maintaining biodiversity, safeguarding and balancing water systems, and storing carbon stores to maintain ecosystem function. In developing SSWR as a tourist area, it is important to follow management procedures. Tourism products should be oriented towards environmental preservation and community welfare. Analyzing the waters resources’ compatibility and the SSWR area’s carrying capacity for ecotourism development is the goal of this study. The research involved field and laboratory observation conducted monthly from April to October 2021 in the SSWR utilisation area at 5 stations, including the Alas-Singkil River and the Lae-Treup River. The study found that fishing tourism activities are very suitable at stations III, IV, and V, suitable at station I, and not suitable at station II. However, river track tourism was found to be appropriate at each station. The regional carrying capacity value for fishing tourism is 1310 people/day for fishing ecotourism and 786 for river track ecotourism. The management of fishery-based ecotourism must maintain the sustainability of fish resources.
Seaweed farming households and their livelihood strategies in North Buton, Indonesia
Authors: Aslan L O M , Rahim M , Taridala S A A , Munier M T , Sifatu W O , Sangkia F D 
Published: December 2024

Abstract
There is limited information on the livelihood strategies practiced by seaweed farmers in Southeast (SE) Sulawesi. This study aims to describe the livelihood strategies of seaweed farmers in Langere village, North Buton district, SE Sulawesi, Indonesia as they cope with poverty by cultivating and producing seaweed. A three-stage approach was applied to determine the impact of seaweed culture on the livelihood strategies of seaweed farmers. This was followed by in-depth interviews with formal and informal community leaders in the village, officials from government agencies, and selected households. The data were then analyzed descriptively. The results of the study suggested that farmers used various strategies, such as common culture practices, fishing, and non-fishery activities. Furthermore, to prioritize seaweed culture in Langere as a regional priority in the fisheries sector, certain constraints and opportunities must be addressed, particularly production, fluctuating prices, market instability, institutionalization, and policy-making. These challenges must be discussed thoroughly to ensure the continuous the seaweed culture development.
Mapping potential areas offshore ecosystems blue swimming crab habitat management effort in labu beach waters, North Sumatera
Authors: Manurung V R , Nasution M , Vonna A A , Marpaung H M , Naibaho R E , Adhia F 
Published: December 2024

Abstract
Offshore areas in Labu Beach are a very important link in maintaining the balance of biological cycles in the waters and become a habitat for blue swimming crabs. Blue swimming crabs are mostly found in relatively shallow waters, especially those with sandy bottoms or sandy mud around the coast. The purpose of this study is to determine the management of blue swimming crab habitat through mapping potential areas offshore ecosystems in the waters of Labu Beach, North Sumatra, knowing the supporting factors for blue swimming crab habitat in the waters of Labu Beach, North Sumatra, and determine the characteristics of Blue Swimming Crab catches in the waters of Labu Beach, North Sumatra. This research was conducted for 4 months from March to June 2024 at Labu Beach, Regemuk Village, North Sumatra. This research was conducted in one locations and 3 sampling points, namely 3 station points offshore using primary and secondary data. Primary data is by field survey field, surveys in the form of potential supporting data offshore. While the data obtained from literature studies, statistical data, data on the distribution of sea surface temperature content and chlorophyll-a using MODIS satellite imagery in the Labu Beach area, Deli Serdang Regency.