bluuebunny/crossref_metadata_2025_split huggingface dataset:
Suppression of joint predators (Pardosa pseudoannulata and Verania lineata) against Nilaparvata lugens in conditions exposed to MIPC insecticide
Authors: Utari A , Syahrawati M , Arneti  , Rusli R , Busniah M , Siregar R W , Putra N S 
Published: May 2023

Abstract
MIPC is one of the insecticides widely used by farmers to control brown planthopper or BPH (Nilaparvata lugens) in Padang City, Indonesia. Excessive use of insecticides can cause BPH to become resistant, followed by the death of natural enemies. This study aimed to determine the suppression of joint predators (Pardosa pseudoannulata and Verania lineata) against Nilaparvata lugens under MIPC Insecticide Exposure Conditions. This study used a Completely Randomized Design (CRD) factorial with two factors and five replications. The first factor was the dose of MIPC insecticide (0.75 g/l, 1.5 g/l, 2.25 g/l, and without application) and the second factor was the time of application (During BPH infestation and joint predators, before BPH infestation and joint predators, after WBC infestation and before joint predator infestation). The parameter observed were predation, body weight, and mortality. The results showed no interaction between dose and time of application on joint predator predation. Increasing the MIPC dose decreased the predation. Joint predators could suppress BPH populations of 40.6-43.6 individuals (78-81%) per day, but MIPC application and the presence of joint predators together reduced their predation rates. It is better to apply MIPC insecticide before or after the presence of joint predators to avoid negative impacts on joint predators.
The role of healthy citrus planting materials production as a major component in the development of national citrus industry
Authors: Harwanto  , Siregar A S , Mufidah L , Hanif Z , Zamzami L , Aji T G , Budiarto K 
Published: May 2023

Abstract
Certified citrus seed is one of vital component on the program of good agricultural practices for the development of healthy citrus plantation. Certified seed guarantee the free systemic disease and optimum vigor planting material, thus put an impact on maximum physiological response to the agriculture inputs that being applied. Production of healthy planting material is initially started from the acquisition of free diseases protocol of seeds from breeder seeds. However, there are still many issues regarding bud-stick in Indonesia which cause the spread of systemic diseases, one of which is CVPD/Huanglongbing (HLB). Therefore, this article presents a descriptive review of the important role of healthy citrus planting materials production that meets the requirements, so that it can become a reference for the citrus nurseries. There are several factors (limited availability of citrus planting materials, technology components to produce healthy seedlings that are not fully applied, as well as the partial application of certified citrus planting materials) that could inhibit the use of technology by the citrus nurseries. A number of recommendations from literatures to overcome these problems are the use of effective dissemination and extension methods, also the provision of understanding and supervision that is carried out on an ongoing basis.
Entrepreneurial competencies and farm management performance of potato farmers in Solok Regency
Authors: Yusmarni  , Putri A , Paloma C 
Published: May 2023

Abstract
Solok Regency has excellent potential in growing vegetables and fruit, which significantly contribute to West Sumatra’s economy. Solok Regency is the largest potato-producing area in West Sumatra. However, since 2015 there has been a drastic decline in potato production. The negative growth of potato production was affected by several factors, including sub-optimal farming management. Farmers’ lack of passion and entrepreneurial ability is one of the socioeconomic factors that hinder the development of their potential in managing productive businesses in rural areas. This paper analyses the entrepreneurial competency of potato farmers in Solok Regency and examines the effect of entrepreneurial competency on the farm management performance of potato farmers in Solok Regency. This study finds that the level of entrepreneurial competency of potato farmers is at a moderate level. Moreover, PLS path analysis found that the variables of individual characteristics of farmers, entrepreneurial characteristics, and business environment are a reference in measuring the entrepreneurial competency of Potato Farmers. Furthermore, entrepreneurial competency, individual characteristics of farmers, entrepreneurial characteristics, and business environment positively and significantly affect the farm management performance of Potato Farmers in Solok Regency. Farmer entrepreneurs do not work alone. However, they operate in a complex and dynamic environment. Despite the level of farmers’ competency ranging from moderate to high, it needs support from other parties to give farmers access to superior seeds and better prices for inputs and output.
Analysis of gambier monopoly index in West Sumatra Province
Authors: Hendri M , Fairuzi S 
Published: May 2023

Abstract
Gambier production in Indonesia comes from smallholder plantations. West Sumatra Province is the leading producer of gambier, with a supply of around 80-90 per cent of the total national gambier production. Based on empirical data, when the selling price of gambier exports increases or fluctuates, the selling price of gambier farmers does not increase as much as the price increase at the level of exporter traders. This condition creates marketing inefficiency. The monopoly index (MPI) is one way to measure marketing efficiency based on the performance of each marketing agency. In this regard, the current business environment is also affected by the Covid-19 pandemic. This study analyzed the monopoly level on the Gambier marketing channel in West Sumatra during the covid 19 pandemic. A survey was conducted in this study. The type of data used in this research is cross-section data. Respondents in this study were gambier farmers, gambier traders, and gambier exporters in Padang City, Lima Puluh Kota, and Pesisir Selatan Regency. The analytical method used in this study is using the Lerner index. Based on the analysis of the monopoly index, it is known that exporters have an enormous monopoly index value compared to other marketing institutions, where the collecting trader has a monopoly index of 4.84, inter-regional traders have 2.09, and exporters have 12.81 MDI. These values showed that exporters dominate gambier marketing in West Sumatra Province. The strong position of exporters in determining prices and marketing gambier is also influenced by cooperation with inter-regional traders (IRT).
Rice farming business risk analysis in Padang City
Authors: Azriani Z , Budiman C , Hidayat R 
Published: May 2023

Abstract
Based on the Area Sample Framework (KSA) results, rice production in West Sumatra has decreased by 6 per cent from 2019 to 2020. This shows that rice farming still faces various risks affecting its production and productivity. As the main farming actors, farmers receive the most significant impact and risk due to climate-related disasters. Farmers must bear risks in production, price, market, financial, technological, social, legal, and human risks. Production risk occurs due to yield fluctuations due to various factors that are difficult to predict (climate change, extreme weather, floods, droughts, and pest attacks). This study aims to (1) identify the risks of rice farming in Padang City and (2) measure the magnitude of rice farming risks faced by farmers in Padang City. Data were collected using questionnaires from 30 farmers. The results showed that the risks faced by farmers were the risk of land management, the risk of flooding, risk of drought and the risk of pest and disease attacks. The risk faced by farmers in their farming business as a whole is low. The risk of flooding and drought has a large percentage of greater risk. The flood risk mitigation carried out by farmers, in general, is to let their land be flooded, while farmers carry out drought risk management by looking for water sources.
Analysis of oil palm smallholder income during replanting in Siak Regency,Riau
Authors: Siswati L , Insusanty E , Susi N , Nizar R , Wahyudiono A 
Published: May 2023

Abstract
Oil palm replanting farmers lose income, and it is necessary to look for other sources of income oil Palm replanting have loss. The purpose of the study was to identify the types of food crops and to know the analysis of farming as well as the income contribution of oil palm and food crop farmers in Siak Regency. The method used was a survey method by collecting data through questionnaires, interviews and field observations. Respondents were taken using purposive sampling based on specific criteria: farmers who cultivate oil palm and food crops, Kerinci Kanan District with 37 people and Koto Gasib District with 80 people. Data analysis used farming analysis to determine the amount of farm income in 1 year and analysis of the R/C Ratio (Revenue Cost Ratio) and income contribution. The results showed that there were several types of food crops, namely sweet corn, cayenne pepper, long beans and cassava. Data be used to measuring income from palm oil and food crops. The income analysis of oil palm and food crop farming in units of ha/year is Rp24,373,057 + Rp62,327,713 = Rp86,700,770 /ha/year, and the income of oil palm and food crop farmers in ha/month are Rp2,031,088 + IDR5,193,976 = Rp7,225,064 ha/month. Based on the R/C ratio analysis of the two feasible commodities to be cultivated, the R/C values are 3.82 for oil palm farming and 1.92 for food crop farming, respectively. The contribution of food crops to the total income of farmers at the time was 71.89%, and palm oil contribution was 28.17%.
Conservation of agricultural genetic resources as an indicator of the Sustainable Development Goals (SDGs) in Indonesia
Authors: Hidayatun N , Sabran M , Susilowati D , Kurniawan H , Herlina L , Dewi N 
Published: May 2023

Abstract
Food security and sustainable agriculture are among the priorities on the global agenda, including the Sustainable Development Goals (SDGs). Indonesia adopted the SDGs and committed to implementing them at the national level. Among the priorities targeted in the implementation of SDGs in Indonesia are food security and sustainable agriculture. Indonesia’s richness in agricultural genetic resources is the potential to support the implementation of SDG 2.5.1. This paper describes the agricultural genetic resources management in Indonesia and its relevance for the implementation of SDGs 2.5.1. Data were collected from official and recommended sources. Around 20 stakeholders take a role in the management and conservation of agricultural genetic resources in Indonesia. At least 42.240 accessions of 1057 plant species including food crops, horticulture crops, estate crops, and forage were conserved ex-situ in those respective stakeholders. However, not all those conservation activities are able to support the implementation of SDG 2.5.1 due to the lack of information, less visibility, and some deficiencies in the management program. Particular efforts are required to establish better management of agricultural genetic resources at the national level, to improve their visibility, and to enable them to support SDGs 2.5.1.
Collembola community structure in two habitat types in Serang Agrotourism, Purbalingga, Central Java,Indonesia
Authors: Ambarningrum T B , Minarni E W , Pratiknyo H , Haryanto T 
Published: May 2023

Abstract
Collembola is a group of fauna that generally lives in the soil and has an important role as a bioindicator of soil fertility about its function as a detritivore. Habitat changes can cause the Collembola community to be disturbed. This study aims to determine the composition and abundance of Collembola on agrotourism land on the edge of the forest and agrotourism away from the forest in Serang Village, Karangreja District, Purbalingga Regency. The research was conducted by survey method with a purposive sampling technique using a pitfall trap. The enumeration was carried out in the Entomology and Parasitology Laboratory, Faculty of Biology, Jenderal Soedirman University, Purwokerto. The results showed that the composition of Collembola at both locations contained 9 families, namely Isotomidae, Entomobryidae, Hypogastruridae, Cypoderidae, Sminthuridae, Paronelidae, Neanuridae, Onychiuridae, and Neelidae, with abundance on forest edge areas higher (6147 individuals) than land further from the forest. (2961 individuals). The family Hypogastruridae was abundant on forest edge land (3014 individuals), while on land far from the forest the family Entomobryidae was the most abundant. There is no difference in the index of diversity, evenness, or dominance between forest edge land and land far from the forest in the agro-tourism area.
Will blockchain technology meets diffusion and adoption traceability technology of supply chain management?: a mangosteen farmers perspective
Authors: Vikaliana R , Mohd Rasi Raja Z R , Darno  , Rukmana H S , Irwansyah  , Sukarno I 
Published: May 2023

Abstract
Technology that suits the needs of the community can answer the problem and can be used easily and can increase economic and environmental value added. So that in its application it is needed the right pattern of technology dissemination is so that people as users can receive it physically and psychologically and mentally (accepted). This study aims to examine the acceptance of technology applications in the mangosteen supply chain management using blockchain technology. The study considers different conditions both socially, and environmentally, production capacity and products produced based on mangosteen commodity. This research was conducted with a qualitative approach by collecting primary data from 5 mangosteen farmers, 1 collector, and 1 quality controller of trader. The results show that the success of technology diffusion and adoption, especially blockchain technology, is greatly influenced by various factors such as the pattern of dissemination from technology providers, business scale, technological suitability, the readiness of the recipient or user of technology, and market response.
Phylogenetic analysis of sumatran Geocharis (Zingiberaceae) based on ITS sequences data
Authors: Zulaspita W , Syafira F , Nurainas  , Syamsuardi  
Published: May 2023

Abstract
The genus Geocharis is one of the genera in the ginger family. This genus is distributed in Sumatra, the Malay Peninsula, Sabah, Sarawak, and the Philippines, where Sumatra is its main distribution. In this study, Internal Transcribed Spacer (ITS) sequence data were used to determine phylogenetic relationships among six species of Geocharis from Sumatra. A total of fourteen sequence data were analyzed in this study. Seven samples were analyzed at the Laboratory of Genetics and Molecular, Biology Department, Faculty of Mathematics and Natural Sciences, Andalas University, and seven others using sequence from GenBank. Voucher specimens are deposited at the Herbarium of Andalas (ANDA). The results showed that the Geocharis species were grouped into two main clusters, in which all species collected from Sumatra are in the same clade.
Bacterial dynamic profile in rhizosphere of Acacia mearnsii during early time transplantation
Authors: Pramudia D , Yunita R , Emalinda O , Nefilinda N , Shiddiq M M A , Syukriani L , Jamsari J 
Published: May 2023

Abstract
Land degradation is one of the major environmental problems in the agricultural sector. On the other hand, the increasing human population needs more and more agricultural products. For that reason, land reclamation using a plant-based approach showing fast-growing capability should be considered as one of the strategies for solving that problematic issue. Acacia mearnsii is one of the fast-growing plants and has high adaptability to some environmental stresses such as drought and fire. Furthermore, the species has shown its ability to increase soil nutrition indicated by its symbiotic capability with some nitrogen-fixing bacteria. In order to exploit and maximize such character, understanding bacterial population dynamics in the rhizosphere zone should ease the use of the species for phytoremediation purposes. A bacterial dynamic profile in the rhizosphere area was identified using the amplicon metagenome sequencing platform. The sequencing result shows Acacia mearnsii has an impact on the dynamic profile of the bacterial population in the rhizosphere, especially nitrogen-fixing bacteria.
Preface for the CIB W070 Facility Management and Maintenance 2023 Conference proceeding
Authors: Klungseth Nora Johanne , Temeljotov-Salaj Alenka , Lindkvist Carmel Margaret , Lavy Sarel 
Published: May 2023

1. Personal message from the editors

It has been an honor and a great experience arranging this conference, and working with the different authors, co-authors, reviewers and committees involved. We would like to thank all for the great efforts they have put into making this event successful.
We look forward to the future development of our profession and hope this conference inspires FM researchers, standardisation experts and FM professionals to pursue new paths and new collaborations ensuring our field of expertise continue to advance.
This proceeding is structured according to the sessions held at the conference.
List of About conference CIB W070 Facility Management and Maintenance 2023, Conference theme and topics in the call for abstracts, Event organisation, Overview of the conference program are available in this Pdf.
Digital transformation in facility management: An analysis of the challenges and benefits of implementing digital twins in the use phase of a building
Authors: Elyasi Navid , Bellini Alessia , Klungseth Nora Johanne 
Published: May 2023

Abstract
Digital transformation and the adoption of technologies in the AEC-sector can lead to efficiency gains in facility management (FM). Digital twins, that is a living representative of the physical asset building, can facilitate real-time data gathering, data monitoring, data-based decision making and support predictive management. The purpose of this study is to analyse the gap between theory and practice regarding the application of digital twins for FM and to understand the benefits and challenges connected with its implementation during the use phase of a building. Despite the growing interest in this topic in academia, the concept of digital twins in connection with FM is rarely employed in practice in the AEC-industry. The findings obtained through a literature review and a set of semi-structured interviews with experts in the field, show that the main challenges for digital twins in FM relate to the organisational culture and that a robust framework for information management is a benefit for digital twins’ implementation. The adoption of digital twins in the built environment needs to be considered in the context of digital transformation. The study supports practitioners with the adoption of digital technologies for the built asset and suggests that future research should examine in further depth the challenges of implementing digital twins.
The Norwegian proptech market – an incubator for game changers
Authors: Phan T , Boge K 
Published: May 2023

Abstract
Property and construction are some of world’s largest industries, but also some of the largest producers of waste and CO2-emissions. The property or real estate industry is currently undergoing a digital transformation. Property technology (proptech) is one of the driving forces for this transformation and enablers to establish a more sustainable society. This paper investigates the Norwegian market through 154 proprietary proptech established between 2013 – 2023. The aim is to understand how proprietary proptech are influencing the business practices and how the real estate industry’s overall capacity, efforts, and resources have been allocated in developing novel proptech. Three theoretical frameworks sociotechnical systems (STS), diffusion of innovation, and sustainability transitions, have been used to investigate how proptech influences the real estate industry and FM. The results suggest there are innovations coming from at least two unexpected places, namely customised modules moving faster than proprietary proptech, and game changers enabled by feedback loops from late stage and FM big data to early stage property development.
Facilities components’ reliability & maintenance services self-rating through big data processing
Authors: Piantanida P , Villa V , Vottari A , Aliev K 
Published: May 2023

Abstract
The availability of big data in the information modelling of buildings can be useful to improve maintenance strategies and activities that are integrated in a digital twin. In some countries, such as Italy, tender specifications for public works must avoid any reference to specific brands and models, both in building design and maintenance services: quality levels and service-life objectives must be defined solely through performance specifications with reference to national or international standards. This could be a critical issue when considering reliability and serviceability of facility components, because there are no official methods about the ratings or measurements on the aforementioned performances. To help solving this concern, a method is proposed to broaden the scope of the big data collected from IoT applied to facility components, so as to feed a general and public database capable of normalizing data on faults and the effects of maintenance interventions, e.g. by correlating them with actual running times and operating conditions. In this way, each component on the market can theoretically feed a public and accessible database that collects reports on the occurrence of faults and the maintenance results, thus statistically processing its propensity for durability, the effectiveness of maintenance, the maintainability propensity of components as well as their reliability (e.g. by assessing the interval between maintenance interventions). In this way, a standardization of reliability, maintainability and durability performances ratings for components and serviceability performance rating for facility maintenance services could boost the facility quality design and improve the maintenance management.