bluuebunny/crossref_metadata_2025 huggingface dataset:
Partnership system on rice farm-based pumping irrigation in Wajo District, Indonesia
Authors: Viantika N M , Darma Rahim , Amrullah A , Akzar Rida
Published: October 2020

A partnership is a form of pooling of different resources to generate a greater output. It is widely applied to small scale economic development, including rice farms. The objective of the study is to analyze the pattern of partnership among enterprises in the input rice agribusiness. This study was conducted on two villages that are affected by the lake ecosystem in Sabbangparu Sub-district, Wajo District, South Sulawesi Province with by 70 farmers selected using simple random sampling. The result indicated that the partnership in rice farming could develop because it is supported by the availability of irrigation services and activity on the risk-sharing of crop failure due to flooding. Water and production inputs are two basic needs that can be met; the easiness, efficiency, and risk-sharing of rice farming management can be realized; and the limited capital and frequent flooding problems can be overcome through a partnership system. The partnership model on various food commodities can be developed to improve the welfare of farmers and increase the income of the agricultural sector and region.
Land evaluation of sweet potatoes with a parametric approach
Authors: Juita N , Lopulisa C
Published: October 2020

Sweet potato is a food commodity that has high economic value and is an alternative staple food because of its energy and nutrition content. This study was in the form of parametric approach by assigning weights to each of the characteristics of both land and climate required for sweet potato plant growth. Climate and land suitability analysis was performed using the square root method. The results of climate suitability analysis showed that there were two periods of sweet potato plant growth, namely in November-March (S2) and March-July (S3) with a limiting factor in relative humidity (RH) and the length of the sun’s irradiation (n/N) which could not be improved. Land suitability analysis in the November-March growing period showed that there are two land suitability classes namely S3 (land units 1,2, 5 and 6) and N (land units 3 and 4). The limiting factors were soil depth, organic carbon and climate (humidity and length of sun exposure). Organic carbon is improvable by adding cover crops, soil depth with a high level of management, while climate such as relative humidity and irradiation are not manageable.
The growth of Turf alga on hard corals in Barrang Lompo Island, Makassar
Authors: Hasim H , Zamani N P. , Jompa J
Published: October 2020

Changes in the environment disrupt the balance of coral reef ecosystems and able to change the structure of communities from coral reefs to macroalgae communities. This study analyzed the growth of alga turf in Acropora branched corals. Experiments carried out in nature, specifically in the waters around Barranglompo Island, with a growth monitoring method for 70 days (approximately ten weeks). The observation of herbivorous fish was carried out by the videography method. The relation of growth with oceanographic conditions was analyzed by principal component analysis. The results showed that alga turf growth on branched hard corals decreased, on A. cervicornis corals by 0.393 mm / day while on A.formosa corals by 0.126 mm/day. The main influencing factor of the growth of alga turf on branched hard corals in Barranglompo Island is herbivorous fish, while oceanographic conditions are not the main factor.
Competitiveness of mandar coconut oil industry
Authors: Fudjaja L , Mahyuddin  , Tenriawaru A N , H K Mukarrama , Salman D , Bakri R
Published: October 2020

This study aims to determine the competitiveness of the Mandar coconut oil industry in Polewali Mandar Regency. Research methods with descriptive qualitative and quantitative approaches. Industry competitiveness analyzes by the LQ method, Klassen Typology, and Shift Share Analysis (SSA), also the Porter Five Force Model. While the determinants of competitiveness are analyzed with the Porter Diamond Model. The results showed the Mandar coconut oil industry in Polewali Mandar had competitive power based on competition among rival companies, supplier bargaining power, and consumer bargaining power. Also, the comparative advantage of the processing industry is a leading base sector in the area, which is potential and can still develop and be competitive. Factors that determine the competitiveness of the Mandar coconut oil industry are human resources, natural resources and the environment, technology, number of buyers, and the growth rate of demand, and suppliers. Need efforts to improve competitiveness include training and mentoring for Mandar oil entrepreneurs related to increased use of production technology, packaging and promotion to increase competitiveness.
Adaptation strategies and social relations of highland farmer communities in Enrekang, South Sulawesi, Indonesia (case: Kaluppini Village)
Authors: Busthanul Nurbaya , Summase Idris , Syafiuddin Masyhur , Lumoindong Yopie , S Ali M Saleh , Jamil Muhammad Hatta , Lukman Ainul Inayah
Published: October 2020

Climate change and weather conditions sometimes force the farmers to make an adaptation for survive. This research aims to determine the strategy of adaptation and social relation of farmers in the Highland area in the village Kaluppini Enrekang District Enrekang District. The data analysis used is a qualitative descriptive analysis. The results showed that the farmers in Kaluppini village had a drought problem and had the effort to get water to shorten the needs of the soil so that farmers move from rice farmers to corn farmers because by planting corn the amount of water that the plant needs is not too much so that the farmers can still cultivate it. To conduct the adaptation strategy farmer utilized social relations in the community that is giving information about word of mouth and still high culture “gotong royong” in the community of Kaluppini village.
Evaluation on morpho-physiological characters of synthetic maize genotypes on low soil nitrogen level condition
Authors: Farid BDR M , Ridwan I , Nasaruddin  , Musa Y , Handayani A R , Amin A R , Widiayani N
Published: October 2020

A study aimed to evaluate the growth and production of several synthetic maize lines at low nitrogen level was conducted at the Indonesian Cereals Research Institute Experimental Farm in Bajeng District, Gowa Regency, South Sulawesi. The research was carried out from September to December 2018. The study also aimed to determine the nitrogen dose that could be used for selection of synthetic maize genotypes against low nitrogen doses. The study was conducted in the form of an experiment using a Split Plot Design. Five levels of Nitrogen fertilizer were used namely 0, 50, 100, 150, and 200 kg N per hectare. Various genotypes treatment were consisted of 4 synthetic maize genotypes namely Syn 5, Syn 6, Syn 7, Syn 8 and 2 comparative varieties namely Bisma and Lamuru. The results show a significant interaction between the treatment of nitrogen doses and the synthetic maize genotype on the morphological and physiological characters of the maize genotypes. Genotypes gave the best results at nitrogen doses of 100 kg N ha−1 was Syn8 (8.67 tons ha−1) and 50 kg N ha−1 (6.47 tons ha−1). Nitrogen doses of 50 kg N ha−1 and 100 kg N ha−1 can be used for the selection of maize tolerant to low nitrogen condition with productivity of 4.57 tons ha−1 and 8.67 tons ha−1, respectively. There is potential for the Syn8 genotype to be developed for low-nitrogen-tolerant maize varieties due to higher production compared to the comparative variety.
Good Agriculture Practice (GAP) of arabica coffee (Coffea arabica L.): Implementation on the smallholder estate in Enrekang Regency
Authors: Ridwan I , Ala A , T Irfansyah , Rafiuddin  , Farid BDR M , Haring F
Published: October 2020

This study aims to evaluate and provide an overview of farmers’ knowledge and understanding on the Good Agriculture Practice (GAP) of Arabica coffee cultivation and its implementation level on the smallholder estate in Enrekang Regency. The research was conducted in three districts of coffee plantation centre from December 2017 to January 2018. The research was carried out in the form of surveys including interviews, observations, and literature studies. A total of 30 respondents were selected using a purposive sampling method in addition to several key respondents from stakeholders and experts. Criteria for the selection was based on the involvement of the farmers in a GAP field schools or not. A proportional ratio of farmers involved in program and not involved were set for the survey. Data were analysed descriptively and quantitatively using comparative analysis with SPSS Version 16 to determine the difference in production of two groups of farmers. The results show that the overall implementation level of GAP by the smallholder farmers of Arabica coffee in Enrekang Regency is 54%. Highest level of GAP implementation was on post-harvest aspect (77%), followed by the harvest aspect (61%). The smallholder coffee farmers had the lowest GAP level on in cultivation aspect of 24%. Farmers that did not implement the GAP had a significantly lower production compared to the farmers who have participated in GAP field schools.
Effect of seed tuber physiological age on leaf area production of potato cultivars Russet Burbank and Atlantic
Authors: Ridwan Ifayanti , Lisson Shaun , Brown Phil
Published: October 2020

A pot trial was conducted to study the effect of seed tuber physiological age on the leaf growth of two potato cultivars. The study was conducted in a controlled stress free environment in a glasshouse at University of Tasmania Horticultural Research Centre. Seed tubers of two cultivars (Atlantic and Russet Burbank) with different physiological ages were used. The trial was set up as a complete randomized block design with four replicates. Some leaf growth characters were observed including the leaf phenology and production. ANOVA on the observed parameters show a significant difference between the physiological ages of the seed tuber used in the leaf growth characters. Higher node or leaf appearance rate was observed in cv. Russet Burbank (39.5 °Cd per leaf) in the plants from older tubers compared to the younger seed tubers (51.2 °Cd per leaf). On the contrary, no significant differences were found for the leaf senescence rate. Seed tuber ages also affected the size of fully expanded leaves in cv. Russet Burbank but not in Atlantic. More branching was found in the plant established from physiologically older seed tubers.
Effect of exploitation system using a tapping stimulant on the production of four rubber plant clones (Hevea brasiliensis Mull-Arg.) in Bulukumba Regency
Authors: Padjung R , Mollah A , Al-Ridho M A F , Mustari K , Ala A , Rafiuddin
Published: October 2020

This study aims to determine the effect of tapping stimulants on the performance of four rubber plant clones. The study was conducted at Palangisang Estate, PT. PP London Sumatera Indonesia Tbk in Tamatto Village, Ujungloe District, Bulukumba Regency, South Sulawesi Province located at an altitude of 0-25 meters above sea level. The study was carried out from September to October 2019 as an experimental research using Nested Design consisted of two factors, rubber clones and exploitation system. Four rubber clones, PB 260, PM 10, RRIM 901, and GT1, were treated with 2.5% ethrel tapping stimulant which repeated on six trees for each clone. Latex weight and dry rubber content were measured compared to the control treatment. The results showed that the application of the tapping stimulants had a very significant effect on latex weight and dry rubber content. Highest latex weight was obtained from the application of the stimulant to GT 1 clone with 226.33 grams. However, clone PB 260 in the control treatment resulted in the highest dry rubber content (34.50%).
Compatibility of land use based on land capability in Tabo-Tabo Village, Bungoro District, Pangkajene
Authors: Rahmadania A N , Arsyad U , Bachtiar B , Wahyuni
Published: October 2020

The purpose of this study was to determine the classification of land capability, evaluate land capability, and determine the direction of land use in the Tabo-tabo Village according to its ability classification. This research was conducted from December 2017 to July 2018, located in Tab-Tabo Village, Bungoro District, Pangkep. This research used a purposive sampling method and a matching classification method. Tabo-Tabo Village has 3.262,54 hectares of total area, and 623,43 ha used as representative of this research. The results showed that some land use incompatible with the land capability was 100,48 ha (16,12%) while the land use, which compatible with land capability was 522,95 ha (83.8%). Tabo-Tabo Village has three Class of lands classification, which are Class IV, V, and VIII, with severe inhibitor factors such as the slopes, drainage, and permeability. Three land units that were incompatible were land in Class V in the form of rice field and two lands in Class VIII in the form of dryland agriculture mixed with shrubs. Land in Class V was directed to the production forest, while land in Class VIII was directed to the protection forest.
Land use planning for floods mitigation in Kelara Watershed, South Sulawesi Province, Indonesia
Authors: Chairil  , Barkey R A , Malamassam D , Mukhlisa A N , Nursaputra M
Published: October 2020

Indonesia has a tropical climate with high rainfall. The high rain will affect the state of hydrology until the peak discharge is a flood. Other factors that influence flooding are morphometry, topography, soil type, and land cover conditions. The Kelara watershed in South Sulawesi has been flooded. Then a flood effort in the disaster mitigation disaster watershed is needed in the form of land use planning. So, this study conducted a mapping of watershed morphometry analysis, flood vulnerability areas, and hydrological modeling to obtain debit data using the Geographic Information System method. Based on flood mapping, the land use planning for mitigation will be formulated based on flood vulnerability areas, actual land use, district space patterns, and land suitability. The results showed that the morphometry of the Kelara watershed was not identified as vulnerable to flooding, namely the watershed shape, river density, and river gradient. While the mapping of flood vulnerability areas resulting from overlapping parameters of land cover, slope, elevation, and type of soil, indicates that there are flood vulnerability areas in Kelara watershed. The flood vulnerability areas to float in flat to gentle areas (0-15%) with a height of 0-50 meters above sea level and land that have a low infiltration rate. The peak of January in a maximum discharge of 1.7268 m3 / second Kelara river. Land use planning with the forest area and development of agroforestry patterns. The reduced land use planning of the maximum discharge on the Kelara River by 0.05 m3 / sec. But land use planning has not been optimal in decreasing peak discharge. So, it needs faster effort, namely other technical activities such as dam construction and river normalization.
The Supply of water in Bua District based on spatial planning of Luwu Regency at the 2030s
Authors: Yusuf N , Barkey R A , Nursaputra M , Rijal S , Mukrimin
Published: October 2020

Land cover in a watershed area has an impact on the infiltration capacity related to the water supply. Water needed for irrigation of rice fields in Bua District, especially in the Bua, Malenggang, and Salu Beroa watersheds are experiencing drought each year. This means that water needs are not in accordance with the existing water supply, so research needs to be done related to water supply and rice field irrigation water needs. This study aims to determine the water supply of Bua, Malenggang, and Salu Beroa watersheds based on the existing land cover and the spatial pattern of the Luwu Regency in 2030 and the need for water for rice fields in this area. Data was used in this study include existing land cover maps, Luwu Regency spatial pattern maps in 2030, soil type maps, Digital Elevation Model (DEM) data, and daily climate data analyzed by using the SWAT model. The results of SWAT model analysis based on existing land cover found that water supply in Bua watershed is 40.291.452 m3/year, Malenggang watershed is 19.467.893 m3/year, and Salu Beroa watershed is 2.685.224 m3 / year. Meanwhile, based on the spatial pattern in 2030 found that water supply in Bua watershed is 40.076.558 m3/year, Malenggang watershed is 19.396.958 m3/year, and Salu Beroa watershed is 2.689.116 m3/year. The amount of water needed for irrigating in these watersheds is 50.848.015,7 m3/year or 81% out of the total water supply of existing land cover and 82% out of the total of spatial pattern water supply in 2030. It is showed that if the spatial pattern plan is implemented and simulated by using a watershed-based SWAT model, the water supply in the study area will be reduced or lower than 281.937 m3 at the end of the planning year, which are the total water supply based on existing land cover is 62.444.569 m3 while the water supply based on the spatial pattern is 62.162.632 m3. Therefore, an evaluation of the implementation of the Luwu Regency spatial plan is needed. The monthly demand of rice fields is 4.237.335 m3 while water supply in August is 3.377.597 m3, September is 3.340.444 m3, and October is 3.484.457 m3. It means that the demand for rice fields is not fulfilled in August, September, and October. Thus, in that month, Drought occurs.
Study of wood harvesting system in community forest
Authors: Dalya N , Mujetahid A , Gautama I
Published: October 2020

This research examines community forest timber harvesting systems in Maros. The results of this study are expected to be used as information material for the community to improve the wood harvesting system in community forests. This research uses descriptive analysis. The data collected consists of primary data through the direct collection in the field about felling techniques, techniques for trunking, sorting making techniques, skidding, and transportation techniques. As well as structured interviews about the costs, timber selling prices, and production relations between timber harvesting entrepreneurs and community forest owners. While secondary data obtained through various sources between research results, institutions, related institutions, and research reports related to the research objectives. The results showed that the harvesting activities carried out by landowners and timber entrepreneurs contained several photographs, ranging from mining activities, to trunks, making sorting using saws, as well as transportation activities using trucks. Workers in community forest timber harvesting activities are paid with a wage system that is provided from within and outside the family environment of landowners and entrepreneurs harvesting community forest timber. The production relationship between the landowner and the exploitative timber entrepreneur and the timber plantation owner trading system for the timber harvesting entrepreneur, who then sells it to industry.
Waste of Morus alba as the main ingredients in making the cultivation media of oyster mushroom(Pleurotus ostreatus)
Authors: Amelia  , Taskirawati Ira , Baharuddin
Published: October 2020

Morus alba contains cellulose and hemicellulose needed for fungal growth. Besides, this plant also contains high protein wherein the protein required for the growth of fungal mycelium. In South Sulawesi, mulberry waste is also quite widely available, especially waste from feed silkworm’s mulberry. This study aims to diversify the cultivation media of oyster mushrooms. The method used in this study is the mixing of raw materials, sterilization of raw materials, inoculation, maintenance, and harvesting. There is five treatment in the blending of raw materials, the use of 100% mulberry waste powder (P1); 75% mulberry waste powder (P2); 50% mulberry waste powder (P3); 25% mulberry waste powder (P4); and 100% sawdust (P5) as a control. The use of 75% mulberry waste powder (P2) produces the best cultivation media. Whereby using this media, it takes 40 days from the growing media inoculating the mushrooms until the oyster mushrooms are ready to be harvested.
Growth and production of maize with several land tillage system and plant density treatments
Authors: Yassi A , Syaiful S A , Adwan A
Published: October 2020

Tillage system is one of the land preparation activities which aims to create suitable environmental conditions for plant growth. The study aimed to determine the growth and production of hybrid corn with several tillage system and seeds density. The study was arranged with a split design experiment. The main plot was tillage system which consisted of no tillage (NT), minimum tillage (MiT), maximum tillage (MaT). Subplot was the seeds density (number of seeds per hole) consisting of one seed, two seeds, and three seeds. The total of 9 treatment combinations were repeated 3 times, making a total of 27 experimental units. The results showed that perfect tillage treatment gave the highest yield of unpeeled cobs (218.30 g), cob diameter (44.10 mm) and production per hectare (6.00 tons).
Paddy-fish cultivation within an integrated farming system
Authors: Yassi A , Kaimuddin  , Ekawati I
Published: October 2020

This study aimed to determine the growth and production of rice and fish on the integrated paddy-fish farming system known as Minapadi. This research was in form of an experiment based on a two-factor factorial design arranged as randomized group design. The first factor was the planting system consisting of 3 levels: Tegel planting (conventional traditional system), Legowo Tapin (transplanted seedlings), Legowo Tabela (direct seed planting), and the second factor was the population density of Nile Tilapia which consisted of 3 levels, namely: 27, 54, and 80 fish population. The results showed that rice production has the highest average in the legowo tapin planting system (5.05 tons/ha). This system was the best planting system by achieving best results on several other parameters such as plant height at 60 DAT (42.90 cm), the number of productive tillers (13.27), the weight of clumps (39.96 g), the weight of 1000 grains (25.58 g) and the weight of grain per plot (4.81 kg). Whereas the legowo Tabela planting system was the best treatment for the average value of the panicle length growth parameters (22.19 cm), grain weight per clump (38.76 g) and fish weight per plot (12.05 kg). While the Tegel system gave the lowest level of fish mortality (1.42%).
Growth and production of sixth generation of brown rice mutants in a high altitude location
Authors: Kasim N , Widiayani N , Revaldi A
Published: October 2020

This paper presents the result of an experiment which aimed to determine the growth and production of some 6th generation Sinjai brown rice mutants (M6) in the highlands. The experiment was conducted in an irrigated paddy field with a height of 750 meters above sea level. The arrangement was a randomized block design (RBD). The treatments consisted of 8 brown rice mutant lines (g1, g2, g3, g4, g5, g6, g7, g8) and Sinjai brown rice parent as control (g9). The results showed that the mutant lines g2 and g3 produced the highest grain production of 3.10 tons ha−1 and 3.13 tons ha−1 respectively. Mutant strains g2 and g3 were short in plant height with a high number of productive tillers, flowering age and a faster harvest time, as well as highest grain length. g2 and g3 strains are the most potential lines to be developed in the highlands. The growth character and production components that have a real positive correlation to production per hectare are production per clump and presentation of filled grain per panicle.
Effect of soil management and biofertilizer application on cocoa’s flower and fruit development
Authors: Kaimuddin  , Nasaruddin  , Darwis D
Published: October 2020

A research aimed to determine the effectiveness of tillage and biofertilizer on the development of flowers and fruit on cocoa (Theobroma cacao. L). This research was conducted in Barang Village, Liliriaja Subdistrict, Soppeng Regency. The research was carried out based on a 2-factor factorial design with randomized block design (RBD) as the basic design. The first factor was soil tillage which consisted of 4 levels namely; without tillage and without mulch; organic mulch without tillage; tillage without mulch, tillage and organic mulch. The second factor was biofertilizer application which consisted of 4 levels, namely: without biofertilizer, biofertilizer 1 cc.L−1, biofertilizer 1.5 cc.L−1, and biofertilizer 2 cc.L−1. Therefore, there were 16 treatment combinations that were repeated 3 (three) times and each unit consisted of 4 plants making a total of 192 plants. The results indicated that the biofertilizer g3 (2 cc.L−1) and g2 (1.5 cc.L−1) provided the highest average of the formed fruit nipples (127), falling fruit nipples (50.00), survived fruit of 10-12 cm (77), harvested fruit (24.58), dry weight of 100 seeds (96.10) and pod index (22.80). The interaction was shown on the parameter of highest number of seeds with 2 cc L-1 of biofertilizer application (32.96).
The potential of the ZECC–washing combination to extending the mango’s shelf life
Authors: Dirpan Andi , Sapsal Muhammad Tahir , Tahir Mulyati M , Djalal Muspirah , Firdaus Ashabul
Published: October 2020

A combination of Zero Energy Cool Chamber (ZECC) and postharvest technology is applied to avoid quality loss and maintain the firmness mangoes. The aim of the present study is to evaluate the combination of ZECC and washing to remove fungus treats on mangoes. The washing applies the water and detergent + Ca(OH)2 (Calcium Hydroxide). The observed parameters are the visual appearance of fruit surface, color, sap, and dirt. The washing treatment of 1% detergent + 0.5% Ca(OH)2 demonstrated the best mango performance by visualizing smoother surface, less discoloration, and clean from sap and dirt. These results provide the potential of the ZECC–washing combination to extending the mango’s shelf life.
Subsectors analysis of agribusiness at Gowa Regency
Authors: Amiruddin A , Mahyuddin  , Maulidiyah  , Mawaddah M
Published: October 2020

The welfare of the community can be measured by improving the country’s economy. Agricultural sector is one of the potential economic sectors that contributes to the growth and development of the national economy, both in terms of income and employment. Analysis to determine the basis sector to formulate the economic development policy patterns in the future is necessary so that economic development policies can be directed to drive these sectors. One of the supporting sectors in economic development is the development of the regional subsector in the agribusiness system. This study aimed to analyze the agribusiness system subsector, which is the basis in the Tinggimoncong District, Gowa Regency. This research used descriptive qualitative analysis method. The results of the study conclude that vegetable farmers in Tinggimoncong District are not oriented to farming with an agribusiness system; this was indicated by the absence of postharvest facilities owned by farmers. Farmers tended to avoid risks in terms of storing the products and always want to sell their products immediately.
Hypocenter dimension of 7.5 mw Palu earthquake using fractal approach
Authors: Rasimeng Syamsurijal , Alimuddin  , Rustadi  , Sinambela Rudy Z. , Mandang Idris , Bakri Samsul , Zaenudin Ahmad
Published: October 2020

Research on the Palu earthquake in the period of August to October 2018 has been carried out in the Palu Koro Fault (PKF) zone with a hypocenter of 5-20 km. This study aims to determine the fractal dimensions of these earthquakes based on the relationship between logarithmic frequency and earthquake magnitude correlation introduced by Gutenberg-Richter. Statistical correlation between logarithmic frequency and earthquake magnitude was calculated using the inversion approach. Based on the calculation results obtained fractal dimension value of 1.0378, which describes the seismicity pattern at a depth of 5-20 km. It indicates that the earthquakes triggered by the movement in rupture segments which seen as points along the PKF zone.
Identify association of appropriate technological application with per capita income of small scale fishing household - a case of Jaffna small scale fishing community, Srilanka
Authors: Saarrankan A.
Published: October 2020

Fishing is vital not only for nutrition supplementary but also livelihood of millions of people. Uninterrupted supply of sufficient and quality fish stocks without affecting marine eco system is ideal for sustainability fishing. However, balancing between sustainability of marine ecosystem, market equilibrium and livelihood of fishing and fishing dependent community is a challenge. Technological application is one of approach to overcome the sustainability of fishing activities. Technological applications are diversified as 1) technology in fishing vessels, fishing gears, equipment and so on. 2) Technology application in information sharing and digital applications such as Global Positioning System (GPS), mobile phone application under Global System of Mobile Communication and 3) Technological application in fishing infrastructure such as cold room, transport equipment and so on. Small scale fishing community depends on labour intensive whereas large scale commercial fishing industries attribute on capital deepening. Adaptation of technology depends on several factors such as financial capability and technology know how. The study examined which technological application is appropriate to small scale fishing activities in Sri Lanka since 90 percent of fishing were carried out by small scale fishers (Fisheries Year Book 2018/19). Primary sample data were collected by structured interview from household level fishing community in Jaffna, North of Sri Lanka. Data were analyzed using descriptive and correlation statistical techniques. The study revealed that information technology especially application of GPS, Internet and mobile coverage in order to obtain fish catch and market information followed by digital sensor application in fishing gear had positive impact on maintain sustainable fishing catches of small-scale fishing activities. In addition, strict law enforcement and monitoring of poaching vessels such as Indian trawlers using radar technology with coordination of fisheries cooperative societies was an essential requirement of small-scale fishing community as external support with regard to sustain fishing stock of the region and their livelihood.
Analyzing performance of BUMDES: Learn from waste bank and clean water units
Authors: Asis A , Salam M , Siregar A R , Rahmadanih  , Salman D , Jamil M H , Supratman
Published: October 2020

The research aimed to analyze the management performance of the BUMDES (Village-Owned Business Enterprise). The research used Case Study Method to provide detailed perspectives of individual village leaders who directly engage at very beginning of the establishment of the BUMDES in each village. Then, we took the advantage of in-depth interview for data collection. Twenty third village leaders selected purposively were interviewed. Data analysis approach used in this research is descriptive qualitative method for making some descriptions of the BUMDES. It is very clear that the process of establishing the BUMDES have fulfilled the requirements of the Indonesian government regulation. The results show that, types of businesses BUMDES members are savings and loan unit, service business unit, clean water management unit, cattle fattening unit, waste banks unit, photocopy unit, and marketing of agricultural products unit, etc. The BUMDES in the district has made a real contribution to the rural economy. It’s contribution to the Local Government Revenue is a prove of a relatively good management performance indicator of the BUMDES. It is also implicit that the BUMDES has become one of the factors driving the village economy that has encouraged the absorption of rural-labor in rural areas.
Absorption characteristics of composite ordinary portland cement (OPC)/Fe2O3/BaO X-ray shield applications
Authors: Riswati  , Rauf N , Tahir D
Published: October 2020

Abstrak

Composite materials for X-ray shield aplications have been synthesized used the ordinary portland cement (OPC) as matrix material and Fe2O3 and BaO as fillers material. There are four compositions of the (Fe2O3 + BaO); namely OFB 1 for 0%, OFB 2 for 5%, OFB 3 for 10%, and OFB 4 for 15%. The chemical composition of the composites were determined by X-ray fluorescence (XRF) spectroscopy and for structural properties determined by X-ray diffraction (XRD). For the absorption characteristics were determined by using mobile X-Ray and analysis the linear coefficient attenuation (μ), the half value layer (HVL), the tenth value layer (TVL), and the absorbed dose (S) for various of the tube voltage; 60 kV, 70 kV and 80 kV. The absorption dose was increase with increasing the amount of (Fe2O3 + BaO) as fillers at the same tube voltage, but decreasing the absorption dose for the tube voltage of radiation source increased. The best absorption dose is for composite OFB 4 on the source tube voltage of 60 kV with the value of μ, HVL, TVL and S are 0.32 mm−1, 2.13 mm, 7.09 mm, and 99.85%, respectively.
The effectiveness of machine translation to improve the system of translating language on cultural context
Authors: Latief Muh. Ridha Anugrah , Saleh Noer Jihad , Pammu Abidin
Published: October 2020

The objective of this study is to present the effectiveness of machine translation in translating language provided by the technology as well as to point out some disadvantages and advantages in using Google Translate (GT) on the cultural context in Indonesia. This research results that the written translation is better than the translation of images using GT. Consider the cultural context as expressive in society to be spread throughout the world, and GT as one of the technological tools available in communication must be used well to overcome language translation systems and cultural barriers.
Paleoclimate prediction based on Discoaster occurrence in Walanae Sandstone of South Sulawesi
Authors: Farida M , Alimuddin I , Maulana A , Nugraha J
Published: October 2020

The Walanae Formation is the youngest sedimentary rock that formed a mountainous area along the Walanae River Valley. It is very interesting and challenging to prove that Walanae Depression developed from the Late Miocene to the Late Pliocene. This area gradually became a marine environment and how the climatic conditions at that time were particularly on the Salo Mario section. Soppeng Regency. Measuring section on Salo Mario obtained 32 layers, consists of interbedded claystone, sandstone, and conglomerate on the upper part of the outcrop. Samples from the layers are then made into smear slides and dried using a UV lamp, and the preparations were analyzed under a microscope at a magnification of 1000x. The result of laboratory observations, nannofossil is only found in 11 layers consisting of coccolith and Discoaster. The nannofossils found are namely Discoaster asymmetricus Gartner, Discoaster berggrenii Bukry, Discoaster bollii Martini and Bramlette, Discoaster brouweri Tan Sin Hok, Discoaster calcaris Gartner, Discoaster deflandrei Bramlette and Riedel, Discoaster neohamatus Bukry and Bramlette, Discoaster pentaradiatus Tan Sin Hok, Discoaster pseudovariabilis Martini and Worsley, Discoaster surculus Martini and Bramlette, Discoaster tamalis Kamptner, Discoaster triradiatus Tan Sin Hok, and Discoaster variabilis Martini and Bramlette. The occurence of the Discoster indicates the warming of the lower photic zone caused by the weakening of upwelling.
Indigenous endomycorrhizal fungus in the area contaminated Fe and Mn in South Sulawesi, Indonesia
Authors: Akib M A , Nuddin A , Prayudyaningsih R , Mustari K , Kuswinanti T , Syaiful S A , Antonius S
Published: October 2020

Mycorrhizal fungi that are capable of adapting and resistant to heavy metal contaminated environments have received special attention for phytorhizoremediation researchers. The aim of the study was to explore indigenous mycorrhizal fungi from areas contaminated with heavy metals to be used as starter biological agents in the phytorhizoremediation program. This research was carried out in two phases, namely; rhizosphere sampling ofPolypodium glycyrrhiza, Sumasang sp (local name) andSpathoglottis plicataat coordinates 2°31′57.6″S and 121°22′50.7″E, Sorowako, South Sulawesi, Indonesia; While the other phase is isolating and identifying mycorrhizal spores in the Microbiology Laboratory, Research, and Development Center for Environment and Forestry in Makassar, Indonesia. The results showed that genus Acaulospora was more dominantly found in areas contaminated with the metal of Fe and Mn, and was able to adapt and survive compared to other genera.
Hand posture classification with convolutional neural networks on VGG-19 net Architecture
Authors: Amir S , Faturrahman  , Hendra
Published: October 2020

This study aims to classify the image depth data Hand Posture. Hand Posture is a form of hand and movement used to communicate. Hand Posture is difficult to classify because various human hand objects are complex articulation objects. The model used in this study is Convolutional Neural Networks using the VGG-19 Net architecture. Based on the results shows an increase in the percentage of classification accuracy in each subject is 0.9976, 1.0, 0.9984, 1.0, and 0.9992 respectively.
Investigation of carbon monoxide (CO) concentrations on roads in the city of Makassar
Authors: Zakaria R , Aly S H , Hustim M , Bakhtiar N F
Published: October 2020

Air pollution has long been and is still a problem for humans and the environment, a priority in countries with high vehicle rates. The contribution of gas released reaches 60-70%. Motor vehicles produce one of the pollutants, namely Carbon Monoxide (CO) gas. This research was conducted to determine the level of CO concentration results from sampling using impinger and prediction models using Caline4 software. The results of the concentration between direct measurements with the Caline4 model were then compared. This research was conducted in three streets for three working days namely Jl.Urip Sumoharjo, Jl.Talasalapang, and Jl.Nusantara. The methodology used is direct measurement using impinger, calculating vehicle volume at each measurement point, and analyzing CO concentrations using Caline4. The results of sampling showed the highest CO concentration on Jl.Urip Sumoharjo at 5.80 ppm, Jl.Talasalapang at 1.06 ppm, and Jl.Nusantara 1.15 ppm. The highest estimation results of CO concentrations with Caline4 on Jl.Urip Sumoharjo were 5.7 ppm, Jl.Talasalapang by 1.1 ppm, and Jl. Nusantara was 1.4 ppm. High or low CO concentration value depends on vehicles volume, for instance, CO concentration increases with increasing vehicles volume. In addition, it is also depends on the meteorological factor, such as, the faster the wind increases, the faster the pollutants will increase. Then compare the results of CO impinger concentration and Caline4 using the t-Test to see the difference of the two CO concentrations. Comparisons were made using the t-Test to meet the t-stat < t-critical concluded that there was no significant difference between the two CO concentrations.
Flume experiments on woody debris accumulation at the bridge pier during flood
Authors: Maricar Muhammad Farid , Maricar Farouk
Published: October 2020

Woody debris accumulation at some bridges during the flood. It is found that the source of the woody debris are transported log from the mountain river during the heavy rain. The purpose of the present study is to analyze the woody debris accumulation phenomena in the flume experiments. The experiments shows that the percentage of trapped wood pieces increased with the number of the released wood pieces. The water depth profile also shows that the backwater rise are increased with the number of trapped wood pieces. Moreover, it is shows that the flood discharge have more significant backwater rise compare to the the lower discharge.
Thermal and electrical properties on three basic planes of Mangium wood (Acacia mangium Willd) with different trunk position
Authors: Irzaman  , Lestari A S R D , Sadiyo S , Nugroho N , Wahyudi I , Nugraha D R , Ohorela N A , Putri N , Mubarok M , M N S , Nababan M Y S , Sejati P S , Lestari A T , Efendi M , Solikhin A , Hendrik J , Aziz A A A , Hadyan  , Aminullah
Published: October 2020

Wood was very complex lignocellulose materials due to its anisotropic property. In this work, the objective was to analyze and determine the effect of wood orientation ofAcacia mangiumwood on thermal and electrical conductivities, dielectrical constant and impedance property by using Stefan Boltzman method. The results showed the relationships between thermal and electrical conductivities inAcacia mangium. The highest thermal conductivity value was in the cross section plane at the bottom of the tree. In contrary, the highest electrical conductivity value was in tangential plane. These differences were expected due to anisotropic property of wood which is influence thermal and electrical properties.
Detection of lead (Pb) heavy metal in snakeskin gourami (Trichopodus pectoralis) meat in Lake Tempe, South Sulawesi
Authors: Ramadhani A A N , Kholilullah Z A , Arifah S , Purwanto E , Omar S B A
Published: October 2020

Trichopodus pectoralis is a type of freshwater fish member of the gourami family found in Lake Tempe. This fish can be found in the central part of Lake Tempe, known as the Pacok Balanda area. In the fisheries sector, pollution can occur in aquatic organisms due to heavy metals that pollute the waters. Meat is one part of fish that cannot be separated from the influence of heavy metal pollution, which will cause toxic effects if present in the body of a living creature and exceeds its threshold. This study aimed to determine the lead (Pb) heavy metal deposits in snakeskin gourami fish meat (T. pectoralis) in Lake Tempe. The research used nine T. pectoralis fish with a body length of 12 to 18.3 cm with an average of 15.32±1.75 cm and a bodyweight of 28 to 82 g with an average of 54.55±18.02 g. Measurement of Pb levels in fish meat used the Atomic Absorption Spectrophotometer test method. The results showed the presence of Pb deposits in T. pectoralis fish meat at Lake Tempe with levels ranging from 0.55 to 14.45 mg/kg. This study showed that Pb content in T. pectoralis fish meat in Lake Tempe was above the standard limit of metal contamination
Torsional beam analysis subjected to static load on offshore structure deck
Authors: Kaba Gilbert Eric , Rachman Taufiqur , Alie Muhammad Zubair Muis
Published: October 2020

The jack-up is one of the fixed typical offshore structures consists of many elements such as beams, plates, braces and so on. Those elements play an important role to strengthen the structure locally and globally from internal and external loads. Such kind of loads eventual act on element like beam and make torsionally. This phenomenon must be analyzed because the beam is connected to other element. The objective of the present study is to analyze the torsional beam subjected to static load on offshore structure deck. The jack-up structure particularly beam element located on the deck is selected to be analyzed. Two cases of beam model are taken. The numerical method is performed to analyze the beam. The result obtained by numerical method for two beam model si compared with one another.
Structural response analysis of jack-up during system jacking lifting process
Authors: Purba Rian Burnang , Juswan  , Alie Muhammad Zubair Muis
Published: October 2020

One of the offshore structures which may be categorized as a column structure where the axial compression and lateral pressure take place is jack-up. The internal and external loads make the structure becomes deformable, leading to failure. For this reason, the structure must be analyzed for the internal and external response. In the present study, the structural response analysis of the jack-up structure during the system jacking lifting process is conducted using a nonlinear finite element method for three cases of the conditions to be analyzed for the structural response. The result obtained by nonlinear finite element is presented in terms of stress and deformation.
The analysis of 2D frame structure subjected to point load
Authors: Arafat Andi Muhammad Alfian , Suci Indah Melati , Alie Muhammad Zubair Muis
Published: October 2020

The offshore structure, like the jacket, jack-up, gravity, and tower, can be categorized as a column structure subjected to vertical or horizontal load, i.e., the structure is identic with the frame structure. Those structures may be idealized as a frame structure with axial or lateral loads acting on the braces. The present study focuses on the analysis of the 2D frame structure subjected to point loads. The support conditions are fixed and hinged at the bottom joint. The point loads of 1 Ton are applied at the vertical and horizontal braces of the frame structure. All point loads are applied in the middle of the brace, either on a horizontal brace or vertical brace. The breadth and depth are 1 m and 1 m, respectively. The result obtained by the numerical method for three models is compared in terms of support reactions, joint displacement, and deformation.
Production scheduling using heuristic pour algorithm, branch and bound, and Nawaz Enscore and Ham (NEH) methods application in Butsudan industry
Authors: Indah A B R , Asmal S , Mangngenre S , Istiqa T N
Published: October 2020

Butsudan production companies have a major problem, namely that the production process has been delayed so that it is difficult to meet production targets on time. The problem is because the scheduling system used is not optimal. Based on these problems, the purpose of this study is to minimize the makespan value by determining the right sequence of jobs. In this study, the method used is the Heuristic Pour Algorithm, Branch and Bound, and NEH. Based on the results of the calculation using the company method, the makespan is 9.958,4 minutes, and the Heuristic Pour method is obtained by the makespan value of 9.461,1 minutes with job sequence J3-J2-J1-J4, the Branch and Bound method obtained by the makespan value of 9.717,3 minutes with job sequence J3-J1-J2-J4, the NEH method obtained the makespan result of 9.846,5 minutes with job sequence J2-J4-J1-J3. So using the proposed method can minimize makespan by 111,9 minutes to 497,3 minutes or about 8 hours.
Shaping and maintaining anti-littering behavior of the community in Indonesia
Authors: Dhahir Darman Fauzan
Published: October 2020

Littering behavior of the community is blamed as one of the causes of waste problems in Indonesia. Many efforts have been conducted, but unfortunately, the effects were sometimes not optimal or only successful temporarily. The current study was conducted using the literature review method to find a solution to this problem. The results indicate that to form anti-littering habits, it is necessary to increase knowledge, and correct perceptions about waste, establish communication, and collaboration of all stakeholders, set role models in action, law enforcement, environmental engineering, supervision, and provision of facilities. Meanwhile, to overcome the effects that are not yet optimal, collaboration and integration among all stakeholders and their policies need to be set. Combined problem solving, and quick responses are also needed. Besides that, to realize the sustainability of the program’s positive effects, stakeholders are encouraged to carry out sustained advocacy as well.