bluuebunny/crossref_metadata_2025_split huggingface dataset:
The application of the ‘Jarwo Super’ component to increase the cropping index of rice fields in the special capital region of Jakarta-Indonesia
Authors: Irawati A F C , Nurmalinda  , Amatilah C S , Zulkarnaen I 
Published: February 2021

Abstract
Jakarta, the nation’s capital of Indonesia, has 414 hectares of rice fields. The fields generally owned by developers that are not been used/idle land. In general, the existing cropping index of the land is only 1-2 which has potential to be improved. The main of this research was to obtain a model of agricultural technology innovation package to increase rice productivity and field cropping index in Jakarta throught the application component of’ Jajar Legowo (Jarwo) Super’ technology. The observation data consisted of primary and secondary data on the characteristics of cropping patterns for a year. The data were processed using descriptive and economic analysis was tested based on the Revenue Cost Ratio (R/C). The results of research showed that the application package or component of Jarwo Super technology showed an increase in the planting index by 0.3-0.8 and also an increase in productivity ranging from 5 t/ha to more than 7 t/ha. Based on the R/C analysis, the application of component of Jarwo Super’s technology package increases the cropping index from 1.83 to 2.32. It means that the introduced cultivation technology can improve farm efficiency every planting season and increase farmer income every year.
Effectiveness of botanical pesticides against the rhizome flies Mimegralla coeruleifrons Macquart (Diptera: Micropezidae) in red ginger
Authors: Rismayani  , Mardiningsih T L , Maris P , Rizal M 
Published: February 2021

AbstractMimegralla coeruleifronsMacquart is a major pest of red ginger. The use of chemical pesticides for controllingM. coeruleifronsis not a proper solution due to the fact that the chemical pesticides are not environmentally friendly, kill natural enemies, and have negative impacts on human health. The aim of this study was to determine the effectiveness of the botanical pesticides consisting of citronella and eugenol which have been formulated and packaged into a product to controlM. coeruleifrons, namely Citronella (Nano Biopestisida), eugenol + citronella + geraniol (Bio Protektor), citronella + salicylic acid (Asimbo), and Imidacloprid (chemical pesticide) that commonly used by the farmer as a comparison. Approximately 10 ml of each botanical pesticides and 2 ml of chemical pesticide were dissolved in 1 litre of water. The treatment was conducted using direct spray. The adults were sprayed and then infested onto ginger plants. Insect mortality was observed at 1; 2; 3; 4; 5; 6 and 7 days after applications. The results show that the botanical pesticide which contains eugenol + citronella + geraniol (Bio protektor) was able to effectively control ofM. coeruleifronspest in red ginger plantation.
The increase of rice cropping index supported by river dam irrigation in dry land
Authors: Anshori A , Riyanto D , Sukristiyonubowo  , Widodo S , Suradal  
Published: February 2021

Abstract
This study aimed to determine the increase of rice cropping index from 1 to 2 in several rice varieties supported by river dam irrigation on dry land during the second growing season. The research was conducted in dry land in Pacarejo, Semanu, Gunungkidul, Yogyakarta, Indonesia, in March-Juli 2019 during second growing season. The increasing of rice cropping index utilized supplementary irrigation from river dam to maintain soil moisture. Rice varieties used were Inpari 24, Inpari 30, Inpari 32, and Inpari 33, complete with a package of technological components. The result showed 139 mm of rainfall with 11 rainy days, so that the most of crop water requirements came from river dam irrigation. Inpari 24 gave the highest grain yield (442.8 kg/1,000 m2) which was not different from Inpari 30 but different from Inpari 32 and Inpari 33. Inpari 24 carbon absorption was 503.8 kg/1,000 m2, consisting of 207.4 kg/1,000m2 in grain, 218.6 kg/1,000 m2 in straw, and 77.9 kg/1,000 m2 in root which was different from Inpari 32 (p<0.05; n=3). B/C Inpari 24 was 1.18 and farmers profit was Rp. 1,006,600/1,000 m2. The profit of rice cultivation in all rice varieties were higher than groundnut with higher irrigation costs.
Evaluation of chili accessions for resistance against Thrips sp. (Thysanoptera: Thripidae)
Authors: Murtiningsih R , Kirana R , Hermanto C 
Published: February 2021

Abstract

Thrips sp. (Thysanoptera: Thripidae) is one of chili pests that can cause significant crop losses by 23% and be even more harmful due to its ability to transmit virus. The use of resistant variety is one sensible strategy to control this pest attack. Thirty chili accessions were evaluated for resistance by counting of the number of pest, recording leaf damage and observing accessions morphological characters. The evaluation was conducted in the Research Field Station of Indonesian Vegetable Research Institute, Lembang, West Java from March to July 2020. Ten of the 30 accessions had low leaf damage and were considered to be used as female parents in breeding program of resistant chili against Thrips sp.
Growth and yields of shallot (allium cepa l.) as responses to the combination of inorganic and organic fertilizers enriched with functional microbes
Authors: Sugiono  , Aisyawati L , Purwanti E W 
Published: February 2021

AbstractThe use of inorganic fertilizers combined organic fertilizer is commonly applied by farmers to increase shallot production. Research was conducted to determine the proper dosage of organic fertilizer which can reduce the use of inorganic fertilizer. The research was conducted at Tawangargo Village, Karangploso district, Malang. The fertilizers were organic fertilizers, enriched with N-fixing bacteria and P solvent bacteria. The research used RCBD where the treatments were combinations of organic and inorganic fertilizers. The dose of organic fertilizer enriched functional microbes was set at 2 t/ha, while the dose for inorganic fertilizer is a combination of 600 kg/ha NPK+200 kg/ha SP36+400 ZA+100 kg/ha ZK. As comparison, farmers applied organic fertilizer from cow manure and without fertilization as control. The results showed that standard dose 100% inorganic fertilizer (1,300 kg/ha) + 100% standard dose (2,000 kg/ha) microbial-enriched organic fertilizer increased RAE 2% that produced 12.50 t/ha dry shallots in comparison with the farmer control. By dose of 2 t/ha of organic fertilizer enriched with functional microbes, the results will be equivalent to local organic fertilizer of 10,000 kg/ha and it is more effective than local organic fertilizers from cow manure.
Composition of pests and predators in the early generative phase of rice cultivation in two different conditions
Authors: Suroto A , Istiqomah D , Syarifah R N K 
Published: February 2021

Abstract
The early phase of growth is the most vulnerable for the survival of rice plants. However, this is influenced by many factors, such as the presence of pests and predators as natural enemies. This study aimed to determine the composition of pests and predators in the vegetative phase of rice plants in rice fields close to forests, and rice fields close to urban areas. The research location was determined by purposive random sampling method. Arthropod species and populations were observed directly from 8 am to 11 am. Data on safety results were processed and calculated. Based on the results of the observations in initial generative phase, there were 687 Arthropods. At the species level, the most abundant main pest was Nilaparvata lugens (11.76%) and Gesonula mundata (10.07%). The most abundant predator was Lycosa pseudoannulata (25.89%). Based on the overall calculation, predatory Arthropods have largest composition (72.36%), while pests were 27.04%. Based on the type of rice field conditions, Arthropods in the rice fields bordering the mountains have higher composition in both pests (15.99%) and predators (41.18%) compared to rice fields that are near settlement/urban areas, namely 11.25% pests and predators 31.18%.
Determinants of livelihood vulnerability of smallholder tea farmers in Lam Dong province, Vietnam
Authors: Thuy N N , Anh H H 
Published: February 2021

Abstract
This study constructed and evaluated the livelihood vulnerability index of small scale tea farming households in Lam Dong Province. It then determined the factors that can increase or reduce their vulnerability. The vulnerability to stresses of weather, climate, production linkages, and product consumption was viewed as a function of exposure, sensitivity, and adaptive capacity. The results showed that most of the households had very high exposure indices to changes in weather, climate, and natural conditions, showing that tea farming activities depended immensely on nature. The sensitivity to pressures of livelihoods, product consumption, or damages from climate variability was moderate. Tea farming households in Lam Dong province had relatively low adaptive capacity indices. The composite vulnerability index was calculated and provided an average of 0.56. The moderately vulnerable group comprised of 71 households (equal to 26.3% of the sample), the highly vulnerable group had 198 households (73.3%), and the extremely vulnerable group had one household (0.4%). The regression model revealed that risk-dependent livelihood, poverty, receiving support from acquaintances or the local government could worsen the vulnerability, while training and production experience can help lessen it.
Effect of stabilizer type and concentration on the characteristics of black pepper sauce
Authors: Kamsiati E , Herawati H 
Published: February 2021

Abstract
Black pepper sauce is one type of sauce that widely used in a variety of modern dishes. The stabilizer is used to increase viscosity, forming the body and texture of sauce product. This study aimed to determine the effect of various types of stabilizers on the characteristics of black pepper sauce. There are four types of stabilizers used, namely Carboxy Methyl Cellulose (CMC), xanthan gum, alginate and maltose with concentrations of 0.5 and 1,0%. The variance analysis showed that the type and concentration of the stabilizer had significant effect on the viscosity, pH, and color of the black pepper sauce. The use of 1% CMC produces highest viscosity, 21,414 cP, while 0.5% maltose produces lowest viscosity, 371.05 cP. The use of stabilizer increases the pH value of black pepper sauce from 4.53 to around 4.61–4.75. Furthermore, the use of stabilizers also reduces the lightness and redness of black pepper sauce. The use of stabilizers affects the characteristics of black pepper sauce produced, especially value of viscosity and color of the product.
Characteristic of banana flour produced from the variety of “Raja Lawe” and “Raja Labu”
Authors: Wibowo C , Naufalin R , Nafisah M 
Published: February 2021

Abstract
Banana variety of “Raja Lawe” and “Raja Labu” are found mostly in Banjarnegara, Central Java. To extend the shelf-life of these bananas, it is necessary to apply an appropriate technology. One of the alternatives is processing of bananas into flour. This study aims to determine the effect of blanching and immersion in several types of solutions on the sensory and physicochemical characteristics of “Raja Lawe” and “Raja Labu” banana flour. This study used an experimental method with a randomized block design. The factors consisted of banana variety (“Raja Lawe” (A1) and Banana variety “Raja Labu” (A2)), blanching effect (non-blanching (B0) and blanching (B1)), and the soaking solutions (sodium chloride (C1), sodium meta-bisulfite (C2), citric acid (C3), and water (C4)). The result of this research shows that in addition to the fresh consumption of the banana fruit “Raja Lawe” and “Raja Labu”, both bananas could be utilized as an intermediate product such as flour. Treatments of blanching and soaking in the solution could improve the quality of the banana flour made from the “Raja Lawe” and “Raja Labu”. The banana flour last longer and may reach broader market that increase the economic value of the fruits.
Effect of pruning intensity and doses of fertilization on content of macronutrients and hormones in leaves of rewatered citrus trees
Authors: Sakhidin  , Purwantono A S D , Suparto S R 
Published: February 2021

Abstract
There are some changes in the rewatered citrus trees, among others are the content of nutrients and hormones. An experiment was conducted to study the effects of pruning and fertilization on the macronutrients and hormones contents in leaves of rewatered citrus trees. The research was conducted in a citrus orchard in Purbalingga, Central Java, Indonesia from June until October 2018. There were two observed factors, namely pruning intensity (0, 5, 10, and 15% of total number of branches each tree) and doses of fertilization (0, 2, and 4 % of weight of harvested fruits at previous season). The research used Randomized Completely Block Design and three replications. Observed variables were content of N, P, K, IAA, GA3, and C/N ratio. The result of research showed that pruning intensity of 5% gave the highest content of K and IAA, and highest C/N ratio but the lowest content of GA3. Doses of 2 % fertilization gave the highest content of IAA and the highest C/N ratio but the lowest content of GA3. High content of K and IAA, and high C/N ratio but lower content of GA3 were required to induce the flowering of citrus trees.
Agroindustrial development strategy for herbal-cardamom coffee in Sumberjambe subdistrict, Jember district, East Java, Indonesia
Authors: Kuswardhani N , Rizky E P V S M , Alifah D E 
Published: February 2021

Abstract
Santuso II Forest Farmers Group has developed cardamom coffee as a herbal coffee drink to increase the value of coffee. It opens the opportunity to realizing coffee agro-industry startups and increasing farmers’ income in Sumberpakem Village, Sumberjambe District, Jember Regency. This study aimed to analyze internal and external conditions and to formulate and recommend business development strategy for the Santuso II Forest Farmers Group. The method was interview using a questionnaire. The data were then analyzed to obtain a strategy formulation using the analysis of Strengths, Weaknesses, Opportunities, Threats (SWOT). A business model was designed using the Business Model Canvas (BMC) and continued using the Quantitative Strategy Planning Method (QSPM). The results showed that there were 8 strengths, 12 weaknesses, 6 opportunities, and 3 threats. Based on weighting and rating, the weight value for the Internal Factor Evaluation (IFE) matrix is 2.89 and the External Factor Evaluation (EFE) matrix is 3.45. This value indicates a strong position in the Internal-External (IE) matrix with an intensive strategy or an integrative strategy. Based on the QSPM matrix analysis, the alternative priority strategy is promoting effectively and intensively through the marketing channels for herbal coffee which are very rare in the market.
Description of automated functions of high-tech production of nanostructures based on silicon dioxide to improve the properties of building and structural materials
Authors: Zott R S , Gladkih A M , Konyuhov V Yu 
Published: February 2021

Abstract
Within the framework of the project “Development of an integrated resource-saving technology and organization of high-tech production of nanostructures based on carbon and silicon dioxide to improve the properties of building and structural materials”, an automated control system for technological thermal vortex enrichment has been created, designed to obtain a modifying additive based on dioxide silicon. The main parameters of the operation of technological lines for thermal vortex enrichment of raw materials, automatic control when threshold values are reached, as well as signaling for the use of control action from automated technological lines are presented. The functions of collecting and primary processing of data, creating control actions, creating and maintaining requests and reporting, providing reporting and data analysis tools are subject to automation. Automation of these functions in the form of a graphical human-machine interface allows for continuous technological control of equipment operation and technological process parameters; ensuring the safety of the technological process in the production of a modifying additive based on silicon dioxide. The collection of data on technological processes and equipment operation, their processing, display and documentation will ensure the optimization of the technological process using advanced visualization tools, modern control algorithms and analysis of the accumulated technological information. Automation of control of the technological process of thermal vortex enrichment will ensure the minimization of the influence of the human factor on the processes of collecting and processing information about the technological process; automatic prevention of the development of emergency situations.
Machine-building enterprise performance and quality improvement tools
Authors: Konyuhov V Yu , Gladkih A M , Zott R S 
Published: February 2021

Abstract
Mechanical engineering is the leading sphere in the industrial countries. The engineering enterprises products take the top place in a realization of the scientific and technological progress achievements in the all economy areas. The development of mechanical engineering is impossible without quality management system introduction at enterprises (hereinafter QMS), which aim is to improve technological processes, develop human resources, reduce production costs and improve competitiveness. This paper reviews the influence of quality management system on the technological efficiency of a machine-building enterprise. To effectively use the concept of total quality management (TQM), a model of a quality management system at a machine-building enterprise is proposed in four areas: quality, process, personnel and resource management. Defining the quality management concept of engineering products, current trends in the sphere of engineering enterprise development were classified according to the products life cycle stages. Developing the total quality management concept, machine-building enterprises should form their own quality concept and its continuous improvement, as well as product competitiveness. The product quality improvement concept should include an adaptation of the enterprise system model leading to the concept of total quality management.
Formation of new principles and models of operation of structural units of the industry under the conditions of implementation of digital technologies
Authors: Lysenko D A , Olentsevich V A , Vlasova N V , Konyukhov V Yu 
Published: February 2021

Abstract
The construction of a high-tech modern model “Digital Railroad” is currently a key element, the implementation of which is planned for the near future. The project will create new principles and models for the work of all structural divisions of the industry in the context of the widespread penetration of digital technologies. The emergence of digital technologies will make it possible to transfer the organization and technology of functioning of transport and other systems to a qualitatively new level, new information technologies will make it possible to optimize the operation of rolling stock. According to the results of the analysis of the performance indicators of the service locomotive depot Irkutskoye, according to the model of “full service” of the locomotive fleet, it was revealed that the indicators negatively affects the financial results of the depot and negatively affects the quality of the repair performed in general. To solve this problem, it is proposed to use an automated locomotive fleet reliability management system in the Irkutsk service locomotive depot, the implementation of which will increase the availability factor, reduce downtime in repair depots, and minimize resource consumption for all types of repair and maintenance. The main consumer of the services of the locomotive fleet reliability management system is, first of all, the Russian Railways holding company and the traction directorate. They are interested in the reliable operation of the rolling stock, since during the operation of locomotives there are risks: comments on the operation of the locomotive fleet, failures and malfunctions of various degrees of complexity, cases violations of train traffic safety.
Pressure calculation for preliminary formation of undercuts prone to defect of fold type
Authors: Lavrentyeva M V , Mironenko V V 
Published: February 2021

Abstract
The paper presents the calculation of the pressure at the first transition during the formation of the “undercuts” on which corrugation takes place. The formulas in general form for the stresses at the first transition and the required pressure depending on the length of the sweep are derived. The results with the finite element analysis of formation and field experiments are compared. The conclusions about the verification of the results are drawn.
Half-metallic ferromagnetism in layered CdOHCl induced by hole doping
Authors: Banerjee H , Barone P , Picozzi S 
Published: February 2021

Abstract
Next-generation spintronic devices will benefit from low-dimensionality, ferromagnetism, and half–metallicity, possibly controlled by electric fields. We find these technologically–appealing features to be combined with an exotic microscopic origin of magnetism in doped CdOHCl, a van der Waals material from which 2D layers may be exfoliated. By means of first principles simulations, we predict homogeneous hole–doping to give rise to p-band magnetism in both the bulk and monolayer phases and interpret our findings in terms of Stoner instability: as the Fermi level is tuned via hole–doping through singularities in the 2D-like density of states, ferromagnetism develops with large saturation magnetization of 1 µ

B
per hole, leading to a half-metallic behaviour for layer carrier densities of the order of 1014 cm−2. Furthermore, we put forward electrostatic doping as an additional handle to induce magnetism in monolayers and bilayers of CdOHCl. Upon application of critical electric fields perpendicular to atomically–thin-films (as low as 0.2 and 0.5 V Å−1 in the bilayer and monolayer case, respectively), we envisage the emergence of a magnetic half-metallic state. The different behaviour of monolayer vs bilayer systems, as well as an observed asymmetric response to positive and negative electric fields in bilayers, are interpreted in terms of intrinsic polarity of CdOHCl atomic stacks, a distinctive feature of the material. In perspective, given the experimentally accessible magnitude of critical fields in bilayer of CdOHCl, one can envisage p band magnetism to be exploited in miniaturized spintronic devices.
Demonstration of quantum volume 64 on a superconducting quantum computing system
Authors: Jurcevic Petar , Javadi-Abhari Ali , Bishop Lev S , Lauer Isaac , Bogorin Daniela F , Brink Markus , Capelluto Lauren , Günlük Oktay , Itoko Toshinari , Kanazawa Naoki , Kandala Abhinav , Keefe George A , Krsulich Kevin , Landers William , Lewandowski Eric P , McClure Douglas T , Nannicini Giacomo , Narasgond Adinath , Nayfeh Hasan M , Pritchett Emily , Rothwell Mary Beth , Srinivasan Srikanth , Sundaresan Neereja , Wang Cindy , Wei Ken X , Wood Christopher J , Yau Jeng-Bang , Zhang Eric J , Dial Oliver E , Chow Jerry M , Gambetta Jay M 
Published: February 2021

Abstract
We improve the quality of quantum circuits on superconducting quantum computing systems, as measured by the quantum volume (QV), with a combination of dynamical decoupling, compiler optimizations, shorter two-qubit gates, and excited state promoted readout. This result shows that the path to larger QV systems requires the simultaneous increase of coherence, control gate fidelities, measurement fidelities, and smarter software which takes into account hardware details, thereby demonstrating the need to continue to co-design the software and hardware stack for the foreseeable future.