bluuebunny/crossref_metadata_2025 huggingface dataset:
The Analysis of Employees’ Work Posture by using Rapid Entire Body Assessment (REBA) and Rapid Upper Limb Assessment (RULA)
Authors: Wibowo A H , Mawadati A
Published: April 2021

This study aims to analyze the work posture of employees by using Rapid Entire Body Assessment (REBA) and Rapid Upper Limb Assessment (RULA) methods. In this study, the angle of the employee was calculated, and the results showed that on the body part B, the angle of the back movement is 77º flexion, the neck is 18º extension, and the leg is 39º, while the leg is not uniformly supported. One of the body parts, such as the upper arm is formed an angle of 65 ° flexion, the forearm is 13 ° flexion, the wrist is 0 ° flexion, and the wrist is in the intermediate range of rotation. Based on the results of RULA, a grand score is 7, categorized as Action level 4. Meanwhile, based on the results of REBA, the grand score obtained is 11, and also categorized as Action level 4. Based on the calculation of work posture using RULA and REBA methods, it revealed that the operator’s work posture has a high-level and dangerous risk. Therefore, the operator needs to immediately improve his work posture. In addition, due to the lifting position that was started with no squatting position, it causes waist injures, since it becomes the lift’s pedestal.
The Importance of Human Resources Management to the Supply Chain Management
Authors: Farmania A , Felix  , Alfredo L
Published: April 2021

The purpose of this study was to examine the effect of human resource management on supply chain activities. Increasing the level of performance of human resources in the form of employee skills, employee incentives and employee participation affects the level of internal integration, supplier integration and customer integration in a company. This research uses quantitative research methods by distributing questionnaires to employees of PT. SPP whose results were analyzed using the structural equation model method with the application of SPSS AMOS. From the results of the analysis it was concluded that employee skills, employee incentives and employee participation have an influence on internal integration, supplier integration and customer integration.
Nurses’ perspective of work-related stressors
Authors: Samuel R , Zaini N H , Hassan W H W , Talib A N , Ramly F A
Published: April 2021

There are many issues affecting the human resources in organizations today. The volatility in the global economy has brought about many changes and the human resources are the most affected. They have to learn to adapt to these changes and cope with the daily pressures. No industry is spared as change is seen as the only constant. This research attempts to ascertain stressors from the perception of nurses at a private hospital in Malaysia. It investigates issues pertaining to their workload, work environment, social support, and manpower. Random sampling determined the sample size from the population frame provided by the hospital’s human resource department. Of the 108 nurses selected as respondents only 80 questionnaires were usable. The use of close-ended questionnaires using nominal and interval scales extracted information from the respondents. The data was then analyzed using the SmartPLS 3.3.2. Findings show that workload and manpower availability are stressors among the nurses. The management of the hospitals need to look into these two issues to help overcome the stress faced by the nurses.
The Impact of Covid-19 on Millennial Perceptions of Experience Quality and Flow of Experience and Its Influence on Behavior Intention to Revisit a Nature and Rural Destination (Case on Jakarta, Indonesia)
Authors: Sitinjak M F , Arief Mts , Kuncoro E A , Hamsal M , Temmy
Published: April 2021

The purpose of this research is to study Quality of Experience and Flow of Experience and their influence on Behavioral Intentions to visit natural and rural destinations for the millennial generation. A total of 156 respondents were assessed and valid for further analysis. The result is that the Quality of Experience determines the satisfaction and behavioral intentions of millennials. Meanwhile, it is recommended that flow of experience be used to influence satisfaction because it has no effect on behavioral intention. The results also show how satisfaction can be a strong mediation of the two independent variables on behavioral intention. This study uses Structural Equation Modeling (SEM) with a Partial Least Square approach using SMARTPLS 3.0. The population of this research is millennials in the Jakarta area and its surroundings. The questionnaire was run while Jakarta was implementing the Health Protocol for distance and movement restrictions to avoid the spread of Covid-19.
Implementation of Green Hotel Management 5-Star Hotel in Jakarta, Case Study: The Dharmawangsa Hotel Jakarta
Authors: Ardiansyah I , Iskandar H
Published: April 2021

The hospitality industry is one of the main parts in the development of tourism, thus spending a lot of resources and energy on earth. Since the hospitality sector is such a large component of the tourism industry, more focus is given to the impact it has on the environment. This research aims to examine the implementation of Green Hotel Management at The Dharmawangsa Hotel where the selection carried out in an environmentally friendly nature includes from efficiency initiatives, conservation practices. This research conducted by qualitative research method. Information is obtained through case analysis and interviews with hotel manager with guidance from literature review. This research revealed that implementation green hotel management which includes environmentally hotel operational, land use, energy efficiency, air quality, water efficiency, and waste management at The Dharmawangsa Hotel Jakarta has been successful in conducting environmental conservation activities aimed at developing sustainable tourism activities and gain competitive advantages. Through the management of operational activities have been directed to the development of hotels that are sustainable and environmentally to reduce the impact of environmental damage from current natural conditions.
Study on the Near-IR Light Detection and Ranging (LiDAR) Potential Use as Water Level Sensor
Authors: Jannata M S , Salam R A , Suhendi A
Published: April 2021

Measuring water level is an important component in various applications, especially in hydrological applications. There are various methods of measuring surface water levels, from contact methods to non-contact methods, each has various techniques depending on the measuring instrument used. Among the available techniques, the use of the Near-IR LiDAR for distance measurement has potential uses because it can be used without direct contact with water. In this study, Near-IR LiDAR (850nm) was tested to determine its suitability as a water level sensor. Measurements were tested for variations in water patterns and turbidity. Although water has a low reflectivity for infrared radiation, it was found that in this study there was still the possibility to be able to detect surface water under certain conditions. In the dynamic water test, the measurement error is <10%. In the turbidity test, minimal information on turbidity that can be used by Near-IR LiDAR to detect the water level is 700 NTU with a measurement error of 5.2%.
Usability Evaluation of Pandemic Health Care Mobile Applications
Authors: Mubeen M , Iqbal M W , Junaid M , Sajjad M H , Naqvi M R , Khan B A , Saeed M M , Tahir M U
Published: April 2021

This study was conducted to evaluate the usability of health care apps and its significance in the field of health care. As health care centers are the settings working 24/7 for providing health services to patients. For this study a systematic review, comparison and functionality assessment of selected COVID19 mobile apps was performed. The assessment was performed on two digital platforms, App store on Apple iPhone and Google play store on Android smartphones. Further online search of keywords on Google was also conducted in order to ensure the reliability and validity of apps on these stores. And only those apps were selected which were in English because of the language proficiency of authors. The mobile apps selected were having five features of assessment, a questionnaire, Privacy statement, Precautionary measures if test positive for COVID19, after plans of Pandemic and Region based. The sample was a blend of participants from different fields including students, doctors, patients and software developers. This is quantitative study; a questionnaire was distributed among the selected participants who were familiar with the use of health care mobile apps. The data was analyzed on the basis of gender and age. The results were made on the basis of responses towards effectiveness, efficiency and satisfaction of users towards mobile phone apps. The results show that apps were found 64.5% informative for participants as they helped in fast communication of doctors and patients while sitting at the other corner of world.
Land Use and Land Cover Classification Using CNN, SVM, and Channel Squeeze & Spatial Excitation Block
Authors: Dewangkoro H I , Arymurthy A M
Published: April 2021

One of the materials essential for human life that must manage properly is the land. Land use and land cover (LULC) classification can help us how to manage land. The satellite can record images that can use as the data for LULC classification. This research aims to perform LULC classification using Convolutional Neural Network (CNN) on EuroSAT remote sensing image dataset taken from the Sentinel-2 satellite. CNN has become a well-known method to deal with image feature extraction. We used several CNN for feature extraction, such as VGG19, ResNet50, and InceptionV3. Then, we recalibrated the feature of CNN using Channel Squeeze & Spatial Excitation (sSE) block. We also used Support Vector Machine (SVM) and Twin SVM (TWSVM) as the classifier. VGG19 with sSE block and TWSVM achieved the highest experimental results with 94.57% accuracy, 94.40% precision, 94.40% recall, and 94.39% F1-score.
Visitors’ Perceptions of Cultivation Technology Innovation in Agro Innovation Park, BPTP Jambi
Authors: Edi S , Rustam
Published: April 2021

Agro Innovation Park is a forum for developing various superior technologies from the Agricultural Research and Development Agency. The services provided are complemented by a library, a consultation area, a training arena, and a playground. This study aims to determine visitors’ perceptions of several technological innovations implemented. The data presented are in the form of park arrangement, various technological innovations, number of visitors, perceptions of visitors, and apprentices in 2018, 2019, and 2020. The Agro Innovation Park is located in Sungai Tiga IP2TP office area, Pondok Meja Village, Mestong District, Muaro Jambi Regency, Jambi Province. This park was built in 2015, having several types of plants with various adaptive and innovative technologies, ranging from short-lived plants such as leaf-producing vegetables, medium-aged plants such as fruit-producing vegetables, and long-lived plants such as perennials, and also equipped with medicinal plants. There was an increase in the number of visitors and internship students from 2018 to 2019, but there was a decline afterward. This happened due to the Covid-19 pandemic resulting in the temporary closure of parks for visitors and apprentices. The findings indicate that In terms of the service provided, 20% of the visitors were satisfied and 80% said that they were very satisfied. For the various technological innovations implemented, 88% of the visitors stated that they were very interested in park management and 75% were very interested in hydroponic technology innovations.
Farm Business Analysis of Crops in Tidal Land (Case Study in Rantau Makmur Village, Rantau Rasau District)
Authors: Adri  , Yardha
Published: April 2021

Tidal land is generally planted with rice once a year, followed by soybean cultivation. The study to determine the feasibility of cultivating food crops on tidal land was carried out in Rantau Makmur Village, Rantau Rasau District, Tanjung Jabung Timur Regency, Jambi Province from June to July 2020. The research method used a survey of 20 farmers who are members of the Bambu Kuning farmer group. The research objective was to analyze rice and soybean farming in tidal fields. The results showed that the respondent farmers were at the productive age, namely 32-61 years. The highest level of education is Elementary School (SD), namely 65%. The average land ownership is 1.3 ha. Rice farming and soybean farming in tidal land are feasible to be cultivated. The total revenue from rice farming is IDR 15,065,000 / ha / planting season (PS) with an income of IDR 8,325,000 / ha / PS. Meanwhile, revenue from soybean farming is Rp. 7,260,000 / ha / PS, with an income of Rp. 1,800,000, - / ha / PS. The ratio of revenue to costs (R / C) of rice farming is 2.2, the breakeven point of production is 1.465.2 kg / ha, the break-even point price is IDR 2,058 / kg. Meanwhile, R / C for soybean farming was 1.3 with a brekeven point of production of 910 kg / ha and a brekeven point of price of IDR 4,512.4 / kg.
Posible Use of Food Security and Vulnerability Atlas (Fsva) to Detect Problem on Poverty and Stunting, The Case of Banten Province
Authors: Budiawati Y , Islami R Z , Perdana T , Natawidjaja R S
Published: April 2021

The paper examined whether the Food Security and Vulnerability Atlas (FSVA) could be used to indicate the actual incident happen on poverty and childhood malnutrition in certain areas. It would be usefull for the policy maker to target programs consistent with the National SDG target guided by the FSVA. The quantitative analysis was carried out using correlation analysis between 2 predetermined variables, namely: scores and the rank of food security of cities/regencies in Banten Province against 5 exante variables, namely: food crop production, number/percentage of poor people, the nutritional status of underweight children and stunting. The study showed that the policy makers can anticipate the possibility poverty pocket, underweight and stunting problems on children under five before it actually occurs using FSVA. The results showed that a city/district with highest priority (ranking) on the FSVA most likely to be the locations with high poverty rate, malnourish and stunting children, and also low ability to produce food. Based on the Banten Province FSVA, the regions that need special attention is Kota Serang (Priority 4), relatively to other cities/districts (Priority 5-6).
Demand for Agricultural Product and Sustainable Development Issues: Empirical Studies from Household Survey
Authors: Rasyid M
Published: April 2021

The agricultural sector is an important sector in the national economy because it has a strategic position in the national economic sector. This sector is a support for the sustainability of other economic sectors. In times of economic crisis, the agricultural sector is relatively resilient in facing turmoil. However, the relative role of this sector in domestic products is getting smaller. This occurs because the demand for this sector is relatively stagnant. Based on this, this paper evaluated the demand for agricultural products in Indonesia using micro household level data. The results showed that the demand for agricultural products was relatively inelastic. The increase in household income has a relatively small effect on the demand for the agricultural sector. Therefore, the development of the agricultural sector is relatively stagnant. In fact, this sector is very important for the economy, so a special strategy is needed to ensure the sustainability of agricultural sector development in the future
The study of composting system and its use in supporting vegetable cultivation in Kepulauan Seribu - Jakarta
Authors: Irawati A F C , Sastro Y , Ikrarwati  , Sutardi S
Published: April 2021

This study aims to test several organic fertilizer production technologies from household waste, and to have the authority to support the growth of vegetable plants cultivated in Kepulauan Seribu. Participatory assessment involving 10 selected cooperators. The assessment activity is carried out in two stages, namely: (1) testing of fertilizer production technology, and (2) testing of having fertilizers produced in crop system plants. Fertilizer production technologies studied include: (a) production technology using a mini composter, (b) production technology using a vermicompost system, and (c) production technology using a burial system. The variables observed included the speed of the production process based on the C/N ratio and fertilizer chemistry, including pH, macro and micro nutrient content. The plant treatment tests included: (a) selected solid fertilizer (compost) and (b) comparative compost (cow manure). The tested plants used included leaf vegetables (mustard greens, lettuce, kale and spinach), fruit vegetables (tomatoes and chilies), and root vegetables (shallots). The observation variables included the growth and yield variables. Observation data were analyzed using descriptive analysis. Based on the results of the study described above, it can be ignored that: (1) fertilizer production technology from organic waste using the vermicompost technology system produces organic fertilizer that is faster to produce, although not according to quality standards of organic fertilizers yet; (2) each of leaf vegetables (mustard greens, lettuce, spinach, and water spinach), and fruit vegetables (tomatoes and chilies), gave a good response to vermicompost, but had not to root vegetables (shallots)
The success factor in developing an energy independent village in Klaten Central Java
Authors: Ningtyas D W , Suwarto  , Lestari E
Published: April 2021

The production of renewable energy source is urgently needed because of the serious problem associated with the supply of energy-based primarily on fossil and nuclear fuel. This phenomenon shows the increasing of importance of developing renewable energy. One of the villages in Klaten district, Central Java has been developing renewable energy to meet daily needs. Renewable energy comes from cow feces which are processed into biogas. This paper describes a qualitative interview analysis of success factor for bioenergy village implementation. This study used a qualitative method with data collection technique through in-depth interview. Interview was conducted with community who use biogas selected by the purposive sampling. We found the success factor in developing Renewable Energy those are support and cooperation with multiple institutions, the participation of an initiator, direct engagement in activities, the implementation of the principles of transparency and communication. Besides that, it is also driven by the increasingly expensive and scarce price of fuel oil. So for now, the inhibiting factors are public funding, unsupportive policies, and doubts from the public. However, the people are proud of the development of this renewable energy, and their quality of life is improving. Besides that, their village also received awards, so that many visitors from outside come to the village. The community wishes to expand it into a tourist village in the future.
Morphological characterization and development potential of beneng variety (Xanthosoma undipes K. Koch) Pandeglang - Banten
Authors: Yursak Z , Hidayah I , Saryoko A , Kurniawati S , Ripasonah O , Susilawati P N
Published: April 2021

Beneng is a local giant taro that is easily found around the Gunung Karang areas, Pandeglang District, Indonesia. Beneng has the potential to be developed as a commercial crop due to high demand of its product (tuber and leaves). Therefore, the study aimed to characterize the morphology of Beneng, and to analyze its potential development. The research was conducted in Juhut Village, Pandeglang District, Banten Province from 2017 to 2020. Morphological characterization was observed following the guidelines on the descriptor for taro. A series of data were collected from Beneng farmers and the Beneng Association. Beneng is a unique crop with a big yellow tuber. Besides, all parts of the crop are useful and economically valuable. Beneng can grow well under, and well adapted to, low light intensity. Therefore, this crop is suitable as a secondary crop in plantation areas or intercropped with other tall crops. Additionally, Beneng is a food crop with a high carbohydrate content (78%) which is suitable as a fresh product or processed products (flour and chips). Beneng dried leave is also valuable as herbal teas and tobacco. High demand of Beneng product showed that Beneng has a comparative and competitive advantage as compared to other types of taro. Currently, Beneng is marketable for export to other countries. The demand for fresh tuber, flour, and dried leaves reached 60-80, 200, and 300 ton per month, respectively. Our study showed that Beneng plants can produce 10-15 kg fresh tuber or around 100-150 ton per ha, and can be as much as 2 kg per plant dried leaves or around 20 ton per ha, with the total plant growth duration of 8 to 12 month. In order to fill the gap between demand and supply of Beneng products, an expansion of Beneng cultivation is needed through optimizing the arable land around Gunung Karang and surrounding areas.
Efficacy of Red Betel Leaf’s (Piper crocatum) Chloroform Extract as Repellent Against Rice Bugs Leptocorisa acuta Thunberg, 1783 (Hemiptera: Alydidae)
Authors: Saraswati F , Herdiannanta A S , Soesilohadi R C H
Published: April 2021

Rice bugsLeptocorisa acutais one of the insects that can damage and reduce rice production by sucking the sap inside the rice grains during the milky phase. The usage of red betel leaf’s(Piper crocatum)extract as bio repellent is one of the alternatives to reduce rice bug’s pest without causing any environmental degradation. This research aims to compare and determine the most effective concentration level of red betel leaf’s chloroform extract as a repellent. The red betel leaf extract was tested at concentrations 25%, 37,5%, and 50%. The methods in this research included sampling and acclimatization of rice bugs and repellency test of rice bugs using various concentrations of the extract. The study results were analysed using Probit Analysis with Lethal Concentration (LC50) according to the number of rice bug’s repellency. The results showed that at 59.75% concentration of red betel leaf extract’s chloroform effectively repelled 50% of the rice bug’s population and reduced the number of rice bugs population below the economic threshold level.
Yield Performance of Shade Tolerant Soybean Cultivars under Shaded Environment at Various Planting Densities
Authors: Saryoko A , Yursak Z , Astuti Y , Kurniawati S , Kusumawati S , Mulyaqin T
Published: April 2021

Expanding soybean [Glycine max (L.) Merr.] production under sub-optimum environment faces the problem of production under a shaded environment. The study aimed to evaluate the yield performance of shade-tolerant soybean cultivars under shaded environment conditions at various planting densities and to determine its related traits. A nested design field experiment was conducted at Banjar Sub-district, Pandeglang District, Banten Province Indonesia (lat. 6.37° S, long. 106.11° S) during the dry season from April to July 2019. Two field conditions, under coconut and banana plantation, which were identified as light-shaded (10-20 % shaded) and deep-shaded (40-50 % shaded) were used as main plots. Three soybean cultivars, Dena-1, as identified as shade-tolerant soybean cultivar, Detap-1 and Devon-1 were arranged at each environment with a single row (40 x 20 cm; normal density; 12.5 plants m−2) or double row (30 x 20 x 50 cm; high density; 14.5 plants m−2). Research results showed that seed yield decreased from 248 g m−2 to 205 g m−2 by the difference of shading. The yield decrease was due to the decrease of total biomass (TDW), branch number, node number, pod number, and seed number, and stomatal density (Nstoma) without any change in harvest index (HI) and guard cell length (Lguard). In plant arrangement, a better seed yield and TDW were resulted from normal density as compared to high density. Under the deep-shaded condition, Dena-1 under normal density (230 g m−2) was superior in seed yield but declined significantly when it was grown under high density (161 g m−2). Based on the above results, combining shade-tolerant soybean cultivar (Dena-1) and planting density (single row; 12.5 plants m−2) is recommended to maintain soybean seed yield under a shaded environment.
Screening of Rizoplan Rhizobacteria for Suppression of Bacterial Wilt (Ralstonia solanacearum) and Promoting the Growth on Chili (Capsicum annum)
Authors: Rumbiak J E R , Hilal S
Published: April 2021

Ralstonia solanacearum (Rs) is a pathogen that causes bacterial wilt on chili. Rs infected more than two hundred crops and caused high impact losses. The methods in controling of Rs by using bactericide which are harmful to the environment. Therefore, it is necessary to control bacterial wilt disease effectively and efficiently by utilizing rhizobacteria rizoplane as biological agents. The aim of this study was to obtain rhizobacteria that colonize root in preventing the entry of Rs through root and stimulating the growth of chili. This experiment consisted of two stages, (i) screening of rhizobacteria isolates and (ii) introduction of selected isolates in suppressing Rs and promoting growth of chili. The research was conducted in randomized block design with 21 treatments with 5 replications for each treatment. Chili seeds were introduced with rhizobacteria isolates before planting. The results showed that there were isolates that were able to increase plant growth, Rp. Han-1.4; Rp. Han-9.2; Rp. Han-6.2; Rp. Han-1.4; 5.2 and Rp. Han-9.1 with effectiveness of 69.20% - 75% (plant height) and 57.29-59.22% (number of leaves). The isolates that were able to suppress disease progression were Rp. Han-1.4; Rp. Han-9.2 and Rp. Han-3.2 with an effectiveness of 44.99 - 53.75% (disease incidency) and 32.09 - 44.95% (disease intensity).
Hybridization and In Vitro Seed Germination of a Commercial Hybrid Oncidium Orchid in Indonesia
Authors: Rianawati S , Suryanah  , Syafni  , Musalamah  , Dwiatmini K , Marwoto B
Published: April 2021

Oncidium is the one of orchid family that is not native Indonesia. In the development of Oncidium breeding are widely encountered difficulties, especially when using advanced commercially hybrid varieties. Hybridization and seed germination of Oncidium is still not established yet. The objectives of this study were to obtain population of hybridization and to identify the best medium culture of seed germination and planlet development of a commercial Oncidium Orchid in Indonesia. The observations were made at a percentage of the success of crosses, seed maturity, the length of the protocorm formation, the effect of media type and sucrose concentration. In this study, the percentage of the cross-success of Oncidium was 15.7% (85 capsules) from 566 crossing and 6.18% (35 capsules) germinated. The fruit harvest age of Oncidium crosses varies between 165 days to 245 days after crossing. The duration of protocorm germination varies between 17-82 days after spreading seed. Protocorms were growth well and fast on medium Tsuchiya supplemented with 1 mg L−1 BAP and 0.25 mg L−1 NAA. and plantlet formation were promoted on the same based media Tsuchiya but supplemented using 0.5 mgL−1 BAP and 0.1 mg L−1 NAA. The optimized protocol required about 24–30 weeks from the spread seed to the plantlet formation. Seedling were grown at size 5-7 cm immediately planted as pot community. The time of acclimatization varies between 6-8 months after the last subculture. while individual time ranges between 4-5 months after acclimatization. Hopefully, the current study will assist with future development of Oncidium Orchid breeding in Indonesia.
The performance of the brown planthopper (Nilaparvata lugens) population and predators on endemic lowland rice areas of Banten Province
Authors: Susilawati P N , Kurniawati S , Astuti Y , Sopyan Y , Setyowati I
Published: April 2021

Brown planthopper (BPH) are one of the main pests of rice plants, their abundance is influenced by biotic and abiotic factors such as the presence of predators (natural enemies). The aim of the study was to determine the relationship between the natural enemies’ performance and the BPH performance. The study was conducted in BPH endemic areas in Serang and Lebak Regencies from March to July 2017. Sampling was carried out directly through visual observations based on four replications, where each replication consisted of 10 observation units. Data were analyzed descriptively in the form of tables and graphs, BPH performance was calculated based on existing population and corrected population. While predators are calculated based on the exsiting population that at the time of observation. Observations were made for five weeks, from 21 days after planting (DAP) to 56 DAP. The BPH population performance in Serang Regency was highest at 42 DAP (8.05 individual/clump) and in Lebak Regency at 35 DAP (25.05 individual/clump). Paederus is a predator with the highest abundance in Serang District, while the highest abundance of predators in Lebak Regency is spiders.
Increasing Planting Density of Maize Trough Double Row Cropping System to Improves Seed Yield
Authors: Saryoko A , Giamerti Y , Yursak Z , Susilawati P N , Kusumawati S , Kardiyono  , Winanti N
Published: April 2021

Maize as the second major crop in Indonesia has an important role in the national economy. Maize production in Indonesia is potentially to be improved by the use of appropriate cultivars and cropping system. The aims of study were to evaluate the yield performances of high-yielding maize cultivars under two different cropping system. An RCBD field experiment using five high-yielding maize cultivars, namely NK212, P21, BISI 2, BISI 18 and Bima 14 were conducted at Banjar Sub-district, Pandeglang District, Banten Province, Indonesia from April to July 2020. The plants were arranged into a single row (70 × 25 cm; 5.7 plant m−2; J1) or double row (25 × 25 × 90 cm; 6.9 plant m−2; J2) cropping system. Plant growth, yield and yield components for each cultivars and cropping system were observed. Across the cultivars, the seed yield of J2 (1.34 kg m−2) was higher than that of J1 (1.71 kg m−2) due to higher number of plant m−2 that resulted greater ear number and seed number m−2. Even though J2 resulted smaller ear size (weight, length, diameter and seed weight ear−1) as compared to J1, but those were offset with greater ear number per m2 of J2. Across two cropping system, cultivar NK212 (1.75 kg m−2) was superior in seed yield, and followed with BISI 18 (1.57 kg m−2). All cultivars were consistently better under J2 than that of J1. We concluded that increasing planting density using double row cropping system, in combination with high-yielding cultivars resulted better seed yield, which is a promising way to improve maize production in Indonesia.
The Effect of Basic Fertilizer Doses On Soybean Growth And Production
Authors: Liana T , Irwandy D. , Bhermana A
Published: April 2021

The research aimed at examining the impact of fertilizer dose treatments on soybean yield. This study hypothesized that basic fertilizer effectively influenced soybean yield. The research was conducted in Randomized Complete Block Design (RCBD) with basic fertilizer doses as treatments. Three basic fertilizer doses were applied (P1, P2 and P3). P1 was fertibio application, 450 kg.ha−1; P2 was manure application, 750 kg.ha−1; and P3 was mixture of ½ doses of fertibio + ½ doses of manure (210 kg.ha-1+ 375 kg.ha−1) and each treatment was performed in triplicate, totalling 9 experimental plots. The results showed that basic fertilizer doses had significant effect on soybean grown and production, while P2 treatment at 75 DAP (days after plant) gave better result on soybean plant height and branch number (89.388 cm and 19,600). For production of soybean, the better result for pod number in P2 treatment (20,029). Therefore, it can be concluded that manure can increase soybean growth and production.
Application of New Superior Varieties of Irrigated Land Rice within Integrated Crop Management
Authors: Yusuf R , Fuadi I , Alim A S , Istina I N , Sutrisna N
Published: April 2021

Rice is an important food crop commodity and a priority of the agriculture program in Riau Province. In Siak Regency, the total production of irrigated land rice in 2018 was 21,937.02 t Milled Dry Grain (MDG) with average productivity of 5.47 tons/ha of Harvested Dry Grain (HDG). In general, the productivity of irrigated land rice in Siak Regency is quite high, with varies between locations (4.68-6.60 tons/ha HDG). The purpose of this study was to determine the production of Logawa, Ciherang and Inpari 42 varieties on the application of ICM for irrigated land rice in Siak Regency, Riau Province According to the results of research on irrigated land rice production of new superior varieties (Logawa, Ciherang and Inpari 42) in integrated crop management (ICM) obtained an average production of 8.50 tons/ha HDG. Low productivity of rice is caused by (i) the use of inferior quality varieties, (ii) the use of fertilisers that are not following the recommendations, and (iii) the location-specific technology has not been applied yet. Increasing rice production and productivity can be carried out by using new superior varieties within ICM. The results showed that the application of new superior varieties within ICM resulted in higher HDG production (8.25 - 8.90 tons/ha) compared to non-ICM (6.20 - 6.50 tons/ha). The increase of HDG production are ranging from 2.05 - 2.40 tons/ha (33 - 37%) compared to non-ICM. The application of new superior varieties within ICM increasing profit of Rp 21,963,750 - 24,609,000 (30 - 33%) each planting season/ha. The total costs incurred by ICM farmers for one planting season are Rp. 15,161,250 - Rp. 15,441,000/ha with an income of Rp. 37,125,000 - Rp. 40,050,000/ha/season and RCR value of 2.45-2.59 and BCR of 1, 23 - 2.59.
Interaction of Genetic and Zn Fertilizer Application on Rice Yield and Grain Zinc Content
Authors: Susanto U , Gunarsih C , Rohaeni W R
Published: April 2021

The prevalence of Zn deficiency in Indonesia is considerably high. Development of variety having high nutrient or called as biofortification supposed to be effective and efficient to combat malnutrition such as Zn deficiency. Zn fertilizer application was reported to be effective to increase rice Zn content. ICRR in collaboration with IRRI and Harvest Plus had initiated testing rice genotypes having high Zn content. The aim of this research was to initially study of Zn fertilizer, especially ZnSO4, effect to Zn content in the rice grains and to select genotypes having high the Zn content. The trial was conducted during Wet Season 2016 in Subang, West Java following split plot design of three replications with main plot of two level ZnSO4 fertilizer applications and sub plot of 24 rice genotypes. Transplanting was conducted at 21 days after sowing into 2 m x 3 m plot with planting space of 20 cm x 20 cm. The results showed that there is interaction between genotype and Zn fertilizer on yield but not on Zn content in rice grains. Zn fertilization tends to increase grain Zn content and yield. IR97477-115-1-CRB-0-SKI-1-SKI- 0-2 (5.45 t/ha, 33.65 ppm), IR97477-81-2-CRB-0-SKI-0-SKI-0-2 (5.30 t/ha, 33.40 ppm), and IR97477-115-1-CRB-0-SKI-3-SKI-0-2 (5.56 t/ha, 32.48 ppm) has either high yield or Zn content and prospective for further testing. Correlation analysis showed that Zn is strongly correlated with Fe content. Yield is positively correlated with tiller number and Fe content and negatively correlated with heading date, maturity, plant height, and number of unfilled grain/panicle.
Studies on Cultivation of Several Varieties of Onion (Allium ascalonicum L.) under Plastic Shade during Rainy Season in Jakarta
Authors: Sugiartini E , Eris F R , Pancaningsih E , Nurviani O , Herawati N
Published: April 2021

Onion (Allium ascalonicum L.) cultivation in Indonesia at the rainy season may affect the productivity which impacted on the price value fluctuation. Therefore, it was necessary to determine the best onion cultivation technology during the rainy season. This research was conducted to determine the effect of plastic shade on the growth and yield of several onion varieties during the rainy season in Jakarta. The study was conducted at Jakarta Assessment Institute for Agricultural Technology (Jakarta AIAT), from November 2018 to February 2019. The research arranged as a split plot design with two factors and four replications. The first factor was the plastic shade utilization, while the second factor was the onion varieties, namely Mentes, Bima and Trisula varieties. The results showed that the treatment without using a plastic shade provided the best effect on plant height parameters at 63 day after planting (42,57 cm). The number of tubers / plants with an average of 9.33 tubers. Wet weight / average plant 41.31g. Diameter / average tuber of 18.85 mm. The treatment of varieties showed that the best average height was obtained by Bima variety (40.55 cm) at 56 days. The mean number of leaves of Mentes and Bima varieties was 63 days after planting (26.75 and 25.37 pieces). The highest number of tubers / plants was found in the Mentes variety (9.87 tubers), the best compared to Bima and Trisula. Meanwhile, the mean wet weight of Bima variety (31.59 gr) was not significantly different from the wet weight of Mentes and Trisula varieties.
Characteristics of Oil in Water (o/w) Type Lotions Incorporated with Kappa/Iota Carrageenan
Authors: Fransiska D , Darmawan M , Sinurat E , Sedayu B B , Wardhana Y W , Herdiana Y , Setiana G P
Published: April 2021

Increasing public demand for cosmetics, especially those derived from natural materials, has provided seaweed opportunities as raw material for cosmetics. Kappa and iota carrageenans produced from red seaweed (Rhodophyceae) be used as a thickener and stabilizer in lotion formulations. This study aimed to determine the characteristics of lotion oil/water (o/w) type using kappa and iota carrageenan in the formulations. The research started with the optimization of lotion formulas. Four formulas obtained were 0% carrageenan (without carrageenan), 0.2% of kappa-carrageenan, 0.2% of iota-carrageenan, and a mixture of 0.2% kappa-carrageenan and 0.1% iota-carrageenan (2:1). Parameters observed were the organoleptic test, pH, viscosity, spreadability, microbial contamination, and a hedonic test. The results showed that kappa and iota carrageenan could be used to formulate lotion o/w type with a concentration of ⩽0.2%. The best formulation that meets the Indonesian National Standard (SNI) based on physical evaluation and hedonic test (parameters of moisture and sticky feeling) was the lotion formula with 0.2% of iota carrageenan.
Study of The Effect of Light on The Length-Frequency and Catch Rate of Caspian Sea Sprat Conical Lift Net in Amirabad Fishing Ports
Authors: Nodehshrifi S , Gorgin S , Paighambari S Y , Khoshbavar-Rostami HA , Babanezhad M , Fazli H
Published: April 2021

The Caspian Sea, which is known as the largest lake in the world, is located in the northern part of Iran. Caspian Sea Sprat or Clupeidae are pelagic fish and play an important role in the food chain. In Iran, clupeid fish are caught by a conical lift net with artificial light and at night. The color of artificial light used in the conical lift net is white or sunny. In a study conducted from May 2018 to January 2019 in the fishing port of Amirabad, the effect of two types of artificial light (blue and red light) was investigated. For this purpose, two lamps with a color of blue and red with the same Volt and Ampere of white light were used in the depth of 40 – 50 meters. The results show a significant difference in the average length of sprat fish caught in each of the lights used (p <0.05). In blue light, the fish caught had a longer length and a heavier weight, while the fish caught in red light had a shorter length and a lighter weight.
Aquaculture in The World and Russia: State and Prospects
Authors: Marinchenko T E
Published: April 2021

The consumption of fish and seafood occupies a significant place in the world’s supply of food to the population. According to FAO, fish accounts for 17% of animal protein in the diet of the world’s population and 7% of all protein consumed. The consumption of fish products is also growing against the background of the active development of aquaculture. The subject of the study is aquaculture in the world and in Russia, the purpose of the work is to analyze the state and generalization of the Russian experience, as well as measures and tools to support the development of the industry. In the preparation, statistical information from FAO, state statistics of Russia, statistics from scientific institutions of the Russian Academy of Sciences, scientific monographs, and scientific papers were used. To achieve this objective, the global and domestic state of the aquaculture industry, as well as measures and instruments of the state, federal, and non-state support provided to producers were analyzed.
Comparison of Gel Preparation Methods on Gel Strength Measurement of Carrageenan
Authors: Fateha  , Ulya N , Asmanah  , Agusman
Published: April 2021

This study aims to develop a carrageenan gel strength test method with an emphasis on the carrageenan gel preparation method for measurement. The gel was prepared by comparing the two heating temperatures (80 °C and 90 °C), heating devices (waterbath and hotplate) and measurement (with container and without container). The results showed that there were no difference between cooking temperatures of 80 °C and 90 °C, but heating at 80°C obtained a lower deviasi standard. The use of hotplate and waterbath were not significantly different resulted in gel strength, but the use of hotplate had a slightly larger variation than waterbath. Measuring the strength of the gel that was still in the crystal container and removed from the container were not significantly different, but measurements with the gel condition were still in the container obtained more accurate test results. Based on the results of this study it can be concluded that the carrageenan gel preparation technique by heating at a temperature of 80 °C using a waterbath or hotplate is the best preparation test method. Meanwhile, the gel does not need to be removed from the container before being measured using a texture analyser. The development of this method can be used as a standard gel preparation method for measuring the strength of carrageenan gel.
Effects of Water on Hydrophobization and Mechanical Properties of Thermoplastic Agar
Authors: Agusman  , Fransiska D , Nurhayati  , Irianto H E , Priambudi P , Abdullah A H D , Nissa R C , Asri P P P , Masruchin N , Sedayu B B , Hakim A R , Wullandari P , Handoyo W T
Published: April 2021

Thermoplastic agar (TPA) was prepared by a melt extrusion process and the effects of water contents on the material properties of these foams were investigated. Bioplastics were produced by mixing agar, glycerol, and water at ratio agar; glycerol: water was 5:3:2; 5:3:3; and 5:3:4 through the melting process at 120 °C and 18 rpm. The addition of water affected the extrusion process more easily, so the pellet could move easily from the extruder, but the moisture content of TPA increased with water addition. Then, TGA analysis showed no difference in decreasing mass in the sample with water addition. Permeability, elongation, contact angle, density, moisture content, and WVTR of bioplastics increased with water addition. The FTIR curves indicated that the interaction between water and agar may form much more hydrogen bonds. The best treatment was bioplastics with agar:glycerol:water=5:3:2, which have characteristics: tensile strength 16.19 MPa, elongation at break 102.56%, moisture content %, contact angle 72.81°, density 1.38 g/ml, moisture content 3.09%, transparency value 0.067, and WVTR 1334.59 g/m2.24 h.
The Effect of Adding Bacillus NP5 to Feed on Growth, Survival Rate, and Protection Against Aeromonas hydrophila of Catfish (Clarias sp.)
Authors: Mustahal  , Sevia  , Herjayanto M , Syamsunarno M B , Putra A N
Published: April 2021

Probiotics are useful organisms in preventing the spread of disease in aquaculture. Therefore this study aims to evaluate the effect of administeringBacillusNP5 on the growth, survival rate, and histology of catfish withAeromonas hydrophilainfection. To achieve this, catfish (7.75 ± 0.02 g) were reared for 45 days with a density of 20 per tank. Furthermore, the study consisted of 4 treatments and 3 replications, namely K+: 0%BacillusNP5+0.1 mL A.hydrophilainjection, K-: 0% Bacillus NP5 + without A.hydrophilainjection, A: 0.3%BacillusNP5, and B: 0.8%BacillusNP5. The results showed that the addition of probiotics significantly increased the growth and survival rate of catfish (P <0.05) compared to K+. The higher value of specific growth rate was found in treatments A and B (0.22 ± 0.03 and 0.23 ± 0.03% day-1, respectively) and the lowest in K+ (0.14 ± 0.03% day-1). Also, the tissue damage in K+ was higher than in the probiotic treatment. Besides, hyperplasia, congestion, and secondary lamella fusion in the gill tissue were found in the K+, while other treatments were found only in hyperplasia. Melanomacrophages occurred in catfish kidney tissue for all treatments, however, hydropic degeneration was found in the control treatment. The addition of Bacillus NP5 in feed resulted in higher growth, survival, and tissue damage compared to K+. Also, the addition of 0.8% Bacillus NP5 resulted in less catfish tissue damage.
Business Analysis of Fish Sauce from Goldspotted Anchovy (Coilia dussumieri) in Bagansiapiapi, Riau Province
Authors: Harahap K S , Mardiah R S , Ikhsan S A
Published: April 2021

A fishery business that will be run by an entrepreneur must generate sustainable profits. Therefore it is necessary to perform business analysis. Business analysis is a method used to determine the feasibility of a business. Business analysis in a fishery product processing is needed because of the great uncertainty. The most influencing factor is the fishing season. This study aims to determine the advantages or disadvantages of a business, the relative advantage of the costs used in a year, the rate of return on investment, the production value limit to break even in the processing of fish sauce in Bagan-Siapiapi, Riau Province. The method applied in this study was a survey method by performing a direct observation in the field. Data analysis was conducted by analyzing financial calculations using several criteria, namely profit and loss analysis (R/L), Revenue Cost Ratio (R/C), Payback Period (PP), Break Event Point (BEP) of production and price. The results showed that the total cost required in making fish sauce is Rp. 15,702,000.00 with the annual profit of Rp. 92,823,000.00. The value of R/C is 2,99 with obtained PP 0,02. BEP of production was obtained at 11.672/pack and BEP of price was Rp. 64.847/pack. Based on the several criteria, it can be concluded that the business of processing fish sauce from goldspotted anchovy is feasible to be developed and continued.