bluuebunny/crossref_metadata_2025 huggingface dataset:
Productivity value chain analysis of cassava in the Philippines
Authors: Onsay E A
Published: November 2021

This paper evaluates the value chain of cassava through crop accounting and financial analysis in Partido district, Camarines Sur, the Philippines. Cassava (Manihot esculenta), locally known as “kamoteng kahoy” is well-known for its ability to produce a reasonable yield in poor soil conditions with less or no farm inputs. This is the reason why cassava is often grown by resource-limited farmers and is regarded as a good source of food security. To analyze its productivity, this study was conducted in 2019. Data gathering was primarily done through focus group discussions and key informant interviews. Results revealed that different gender roles exist where men are primarily responsible for farming while women are for marketing. It also discovered the reason why farmers, though provided with options, often choose the less profitable transaction path, due to perishability of crop. It also solved the mystery of low productivity in this locale as compared with the national and international production. Typhoons, government policies, and pricing mechanisms affect its overall productivity. Cost build-up, value-added, and cost and returns analyses are interesting. Farmers are less profitable yet have the highest opportunity for profitability when the constraints are addressed while sellers have a high degree of profitability due to fewer input costs. The existing entry barriers in each chain were also identified, along with the researcher’s recommendations on how to eliminate or mitigate them. The study can be useful to stakeholders of cassava in designing intervention mechanisms to tap its full potentials.
Contribution of pig farming to household in Tenga Subdistrict, South Minahasa District
Authors: Manese M A V , Santa N M , Bukanaung E P
Published: November 2021

The people of Tenga Subdistrict, South Minahasa District have raised pigs as well as used them as a source of household income. Pig farming has been running for about 15 years, although sometimes it receives losses. This study aims to determine how much the contribution of pig farming to household income and the factors that affect the income of pig farming in Tenga Subdistrict, South Minahasa District. This research was conducted during March 2021, and the sample locations in Tenga Subdistrict, South Minahasa District in Tenga Village, Pakuweru Village, and Pakuure Village were determined using the purposive sampling method, with the consideration that these areas are areas that have a large population of pigs. The sample was determined by the total quota sampling method, namely all pig breeders in the three sample villages as many as 30 farmers. The analysis model used to estimate the factors that affect income is the multiple linear regression equation models. Pig farming was able to provide the income of IDR 17,431,281/year with an average of 26 pigs/farmer. Pig farming contributed 40% to household income. Pig farming has the largest contribution to the household income of pig breeders. The factors that influence the income of pig farming are the age of the farmer, the number of ownership of pigs, and the type of business combination. Farmers needs to increase the number of sows, to increase household income. The government’s policy is a program of providing assistance in the form of pigs, as broodstock for farmers.
Productivity from the different rubber-based farming system models in Cotabato Province, Philippines
Authors: Mag-aso J , Garcia F G
Published: November 2021

In the Philippines, the production of rubber cup lumps has decreased in recent years. Despite the expansion of the rubber industry for environmental and economic benefits, knowledge about the productivity and income of the rubber-based farming system is minimal. Hence, this research assessed and estimated the productivity and income of farmers from the different rubber-based farming system models in Cotabato Province, Philippines, where one of the major crops is rubber. It is important to determine the productivity of rubber and how its productivity was affected by the introduction of other crops. Through this, the income of farmers and welfare were measured. This research was carried out in 2016, where rubber was among the priority crops being promoted in the area. It investigated 3 different rubber-based farming models, namely: FM1 (rubber+ banana), FM2 (rubber+ cacao), and FM3 (rubber+ coconut). The study revealed that the farmers’ income increased by engaging in intercropping compared to the monocropping system. Thus, as the income of the farmer increases, the household’s basic needs, particularly food consumption, will be attained since income does not solely depend on rubber production but also other crops grown. The result also shows that farming model 3 provides higher returns to the farmers than the other rubber-based farming models. Hence, the study is useful for the farmers to adopt different rubber-based farming systems to increase income and reduce risks from farming. This study also serves as a basis for the policymakers for future agricultural development.
Farmers’ perception of rice production community enterprise’s roles: evidence from Chachoengsao Province, Thailand
Authors: Cavite H J , Suwanmaneepong S
Published: November 2021

Rice production community enterprises (RPCEs) have emerged in Thailand as a group initiative supported by the government to help address the challenges of rice farmers in rural areas. However, farmers still faced problems due to a lack of targeted programs and policies to improve the enterprise’s roles in the community. This study investigated farmer-members’ perception of an RPCE’s specific roles. Primary data were collected through a structured questionnaire administered to 201 farmers in Sanam Chai Khet District, Chachoengsao Province, Thailand. Data were analyzed using the weighted average index (WAI) method to assess the farmers’ perception of the RPCE’s roles. Results reveal that RPCE members have a strong perception of the enterprise’s role in increasing their income. Other roles such as knowledge and skills improvement, supplying inputs at a fair price, increasing social network, product competition with rivals, and provision of credit facilities, were rated as medium, demonstrating the considerable efforts exerted by RPCEs to improving its members. Moreover, a weak rating was given by members for the enterprise’s role as a saving source implying that government should further intensify its support for RPCEs in terms of promoting the saving behavior among members. This study suggests that stronger policy support should be given to upgrade RPCEs based on how members perceived them. This would encourage more member participation and secure more benefits and income for members of the community enterprise.
Performance of farming extension field during the COVID-19 pandemic in East Java
Authors: Purwidyaningrum A , Rondhi M , Hapsari T D
Published: November 2021

The success of farming extension activities cannot be separated from the role of farming extension workers. In this pandemic, farming extension counseling must be continue to make good environment. Social and physical distancing can make limited access for farming extension workers in carry out their roles. The purpose of this study was to analyze the performance of farming extension field and the influenced factors of perfomance farming extension field during the pandemic in East Java. This research is located in East Java province, it was conducted from March 2020 to 2021. The sampling was carried out by cluster random sampling and it got 360 respondents. The data collected by using statistical descriptive analysis which is used a scale and multiple linear regression model. The result of this research during the pandemic was going well. Meanwhile, the was the factors that influence in performance of farming extension (age, work training, topography and availability of infrastructure) but distance, farmer group, and education did not have impact on it.
Value chain of sweet potato: a sociological analysis
Authors: Cerio C
Published: November 2021

This study analyzes the existing value chain of sweet potatoes in the Partido District of Camarines Sur, the Philippines. A combination of surveys and participant observation was utilized in the study. Four sociological perspectives were used in the interpretation and analysis of the data, such as new economic sociology, symbolic interactionism, role theory, and exchange network theory. Six components of the value chain were evaluated, such as (a) agents, roles, and links; (b) inputs, outputs and activities that generate transformation; (c) value addition and value allocation; (d) final products or a group of final products; (e) power relations and governance mechanisms; and (f) problems and opportunities shared by all agents. The study found four major links involving five actors – farmers/producers, middlemen or wholesalers, retailers, processors, and end consumers. Analysis of the sweet potato value chain shows that sweet potato production has great potential to improve the well-being of participants. Sweet potato production gave farmers an 81% net profit margin and contributed to 39% of their livelihood. However, there remain general production and utilization challenges and post-harvest and by-product processing issues. The study established the significance of embeddedness and the wider social structure for the sweet potato agribusiness and provided policy inputs for the development of the sweet potato value chain in the district.
Analysis of rice farming using new superior varieties in swamp lands in Mesuji District, Lampung
Authors: Slameto  , Zahara  , Hendra J
Published: November 2021

This study aims to analyze rice farming using several superior varieties of rice in the swamps of Mesuji District, Lampung Province. The study was conducted on PT-1/MH December 2020/January 2021 in Tanjung Mas Jaya Village, Mesuji Timur District, Mesuji District, Lampung Province. The superior varieties of rice grown by Cilamaya Muncul, Inpara-2, Inpara-8, Inpari IR Nutrizinc, Mapan, Supadi and Kebo. Each variety is planted by one farmer with an area of about 1 ha. The analysis was carried out descriptively comparing the revenues and costs used. The results of the study show that rice production ranges from 7,573-10,400 t/ha, with an average rice productivity of 9,243 t/ha. Contribution to the cost of using production facilities occupies 28.77% - 45.52% of the total production cost, while the cost of using labor is 54.48% -71.23% of the total production cost. Rice farming in the swamps of Mesuji area with the use of six superior varieties of rice is still profitable with R/C ratio ranging from 3.48 to 4.63. In the future, for efficient farming, the implementation of technological innovations, especially the choice of suitable (adaptive) improved varieties of rice, is very important to consider.
Inhibiting factors on the sustainable livestock development: case of dairy cattle in Indonesia
Authors: Amam A , Jadmiko M W , Harsita P A , Zahrosa D B , Supardi S
Published: November 2021

Sustainable livestock development is still a national strategic issue in Indonesia. The research objective was to examine the inhibiting factors for sustainable livestock development, especially for dairy cows. The research was carried out at the Tirtasari Kresna Gemilang, Joint Business Group (KUB) animal husbandry institution, Malang District, East Java Province. Research variables include inhibiting factors (X), ecological dimensions (Y1), economical dimensions (Y2), social and cultural dimensions (Y3), institutional dimensions (Y4), and technological dimensions (Y5). Respondents of the study were 196 dairy cattle farmers who were members of KUB Tirtasari Kresna Gemilang. The data were obtained using the Focus Group Discussion (FGD) method and survey with a likert scale. Data were analyzed partially using simple linear regression. The results showed that the inhibiting factors had a negative and significant effect on sustainable livestock development, especially in the economical dimensions, the social and cultural dimensions, the institutional dimension, and the technological dimension. shows that the inhibiting factors for sustainable livestock development should be the concern of all stakeholders in the national dairy industry.
The optimization of agricultural machinery utilization in enhancing the implementation of modern agricultural programs
Authors: Indraningsih K S , Susilowati S H , Swastika D K S , Syahyuti
Published: November 2021

The provision of agricultural machinery in the Modern Agriculture Program is to overcome labor shortages. However, the utilization of agricultural machinery aid is underutilized. This study aims to analyze the optimization of the use of agricultural machinery in enhancing the implementation of modern agricultural programs. West Sumatera, Central Java, Banten, Bali, and South Sulawesi were purposively chosen as the study areas. The study was conducted in 2017. Respondents of this research were policymakers from central to local institutions, key informants, extension agents, agricultural machinery service providers (UPJA), and farmers. The method used was descriptive explanatory and financial analysis. The results showed that the utilization of agricultural machinery in the Modern Agricultural Program was still not optimal. It was still underutilized. There were several obstacles, both from economic and social aspects. The utilization of 4-wheel tractors and rice transplanters has not been economically managed. As a result, they cannot generate funds for equipment maintenance and the development and UPJA’s sustainability. Not all types of agricultural machinery are socially suitable for farmers’ needs. There is a competition between agricultural machinery uses and workers. Moreover, not all local governments fully supports agricultural machinery uses. To optimize and succeed on the modern agriculture program implementation, agricultural extension workers with certification as UPJA Facilitators are required.
Strategy for developing Indonesian vanilla products to improve the added value
Authors: Wahyudi A , Sujianto S , Kurniasari I
Published: November 2021

Vanilla is a world-well-known spice product, especially as food and beverage flavoring; however, the availability of (natural) vanilla is too little (less than 1%) to meet the demand for vanilla either industry or household. So far, most Indonesian vanilla is traded as a commodity in the international (export) and domestic markets. For producers who are primarily smallholders, these conditions create business uncertainty and added value. This paper aims to review the strategy of product transformation from general commodities into certified products or branded products by utilizing digital marketing (e-commerce), which leads to the stability of the price of vanilla products (reduced uncertainty), and creates an additional value. The method used in this study is the literature review method. Product transformation requires product development, where certified products must follow particular procedures in production to obtain certification, and branded products require differentiating features in products that consumers appreciate. In addition to product development as a primary strategy is also needed supporting strategies such as proper pricing and promotion. This review implies that there is an opportunity to transform a vanilla product from a commodity to certified and branded products; hence it should become vanilla development agenda.
The impact of the COVID-19 pandemic on fishers in the Indramayu District
Authors: Sari Y D , Mira  , Suryawati S H , Nababan B O , Hikmayani Y , Putri N P S
Published: November 2021

The impact of the COVID-19 pandemic in Indonesia has been perceived by all community. The global economic slowdown has an impact on Indonesia’s economic growth. Exports of Indonesian fishery products are delayed due to restrictions on imported products in Indonesia’s export destination countries. This study aims to determine the impact of the COVID-19 pandemic on the utilization of fishery resources in the Indramayu District. The data used in this study are primary and secondary. Methods of data analysis using quantitative descriptive. The results showed that fishermen in the Indramayu District continue to catch fish using the same fishing fleet and gear at the same fishing ground. The decline in business income due to the decrease in the selling price of fish causes a decrease in business capital and a decrease in the source of livelihood for small-scale fishermen. Fishermen’s income has decreased by 20-30% per trip. Fishers continue to use the same boat, fishing gear, fishing ground, operational costs, and crew. The adaptation made by small fishermen is to reduce the number of trips to avoid losses when catches are low. The adaptation carried out by large-scale fishermen is to look for alternative sources of capital for operational costs to be still carried out during the fishing season. The government can provide fishing gear assistance and financial assistance to small fishers and provide capital institutions for large-scale fishers in reducing the impact of the COVID-19 pandemic on fishers in Indramayu.
Rural development in Papua: lesson learned from cocoa farming
Authors: Rahmanto M I , Frank S A K , Flassy M , Romaropen D A
Published: November 2021

This paper convey a reflection on the economic activities of the chocolate farming community in Berab, Papua and its relationship with the international market, namely in Japan through the Kakao Kita business organization in Jayapura. The ethnographic methods was used to collect the data, in-depth interviews, participant observation, and visual ethnography are conducted during June 2020 – January 2021.The crucial finding from this research is that the trading systems that are built are both based on humanism and community principles. Both buyers from Japan and the farming community built social relations which then abandoned the impression that trade, especially on an international scale, was all about profit and loss. There is a positive intersubjectivity between the two of them, shown by a sense of togetherness in the importance of maintaining this relationship, as well as the relationship to nature shown by organic cocoa plantation management and transparent and humanist trading mechanisms. Furthermore, the challenge that arises and need to reflect on is whether a similar scheme model can be replicated to other communities in Papua. It is recommended to the Papuan local government to take a closer look at the policy implementation process, especially from special autonomy for the economic empowerment of local communities.
Assessment of the multifunctional role of wetlands in Indonesia: a case study in West Java Province
Authors: Saputra Y H , Setiyanto A
Published: November 2021

Agricultural activities in paddy fields (wetlands) producing products and sell that product, and also generate desirable or positive externalities as environmental services. Environmental services and the products that sell to the market are called multifunctional agriculture (MFA). This study aims to evaluate and economically assess the multifunctional role of wetland areas in Indonesia by taking the case of the West Java region. This study uses secondary data and data collected from various institutions and publications. This study uses the replacement cost method (RCM) to investigate the economic value of the role of MFA in wetland farming systems. The results show that the total value of environmental products and services marketed in wetland areas in West Java Province is around USD 36.59 billion per year or USD 39.41 million per hectare per year. The policy implications of this research are (1) attracting the maximum capacity of the stakeholders and community to participate in all the programs planned to protect, preserve and conserve the environment; (2) parting, endorsing, and strengthening the government and communities in the downstream area to invest in rehabilitating the upstream and middle watersheds; and (3) in per hectare a year, excluding the price of the land itself, the cost of building paddy fields, and the value of other infrastructure and facilities, USD 39.41 million is the replacement cost value if the rice fields are to be converted to non-agricultural use and replaced by the construction of rice fields new in other areas that are still possible.
The method on measuring utilization index of agricultural technology
Authors: Mailena L , Sumedi  , Muharam A , Mardianto S , Hanifah V W
Published: November 2021

Utilization of technology as a research result is the foremost indicator towards the success of R&D as well as the measure of the multiplier effect concerning the usage of R&D budgets. However, to define the indicators and measurement of technology benefits is less considered. This study was aimed to determine the scope, indicators, and comprehensive measurement methods on the utilization of technology in the form of an index to standardize the value. Through literature studies, benchmarking of previous models and Focus Group Discussions, the measurement indicators of technology utilization index include: the availability of technology at the user’s location, the distribution of technology adoption, technology benefits, technology accessibility and user acceptance. Every variable for each indicator was based on the type of technology. The method for measuring the level of technology utilization using a composite index of four variables and calculation was carried out by weighting the importance of each variables based on the eigein value of Analytical Hierarchy Process. Three utilization categories were not utilized (index <1); underutilized (index 1 to 3); and high utilized (index> 3). As an example, the utilization index of a new superior varieties (VUB) of rice was high (3.75) with relatively good indicators on technology benefits and availability of VUB rice seed at the user’s location. Furthermore, the result implies that the method on measuring the utilization index is adequate to be widely applied for other types of technology.
Changes in rural household characteristics and their implications on agricultural income in wetland rice ecosystems
Authors: Purwantini TB , Susilowati SH , Suryani E , Yofa RD , Rahmawati RR , Irawan AR
Published: November 2021

Agricultural development has impacted changes in rural economic structure, as reflected by rural economic indicators.. The research question is how the direction of the changes is and the implications for rural household agricultural income. This paper aims to analyses household characteristics changes in the rice-based ecosystems and their implication on household agricultural income. The study used micro-panel data of the National Farmers Panel (in 2010 and 2016) from the Indonesian Centre for Agro Socio-Economic and Policy Studies. The survey was conducted in 14 villages of five rice production centers provinces in Java and Outside Java. The number of respondents is 559 households. Data was analyzed statistically descriptive by calculating the average, minimum-maximum numbers, and participation rate. Generalized Linear Models method was employed to determine the factors affecting household agricultural income. The results showed that agricultural land occupation tends to decrease. The number of older workers tends to increase. The increase of workforce older than 65 years is more significant in Java than Outside Java. The workforce level of education remains predominantly in elementary school. Although nominal total income increased significantly, real income increase sluggishly. Household agricultural income is still dominant but declining. The farmland managed, age and level of education of the household member, number of the household member, and cropping intensity affect household agricultural income significantly. To increase the household agricultural income by increasing the production capacity of farmers’ households through increasing land occupation, improving human resources skills, and facilitating innovative technology that can increase farming efficiency and productivity.
Three decades of agricultural and rural transformation in Indonesia
Authors: Sudaryanto T , Purba H J , Rachmawati R R , Erwidodo  , Dermoredjo S K , Yusuf E S , Nuryantono N , Pasaribu S H , Amalia S , Amin M
Published: November 2021

Structural transformation in Indonesia has been a subject of broad empirical research. However, a minimal study has verified the characteristics of rural transformation. This paper aims to analyze indicators of rural transformation, likely drivers, and their impact on household income and poverty incidence. The analysis utilizes national data covering the period of 1990-2019. The data is analyzed using graphical illustrations and a simple regression analysis. As part of rural transformation, the result shows that there have been changes in the share of agriculture value from staple food to high-value commodities, particularly during the first two decades. This transformation is also complemented by the increase in rural non-farm employment, most notably during the last decade. The results also highlight stages and the likely drivers to those changes, including institution, policies, and investment (IPIs). Finally, this phenomenon leads to rural household income growth and a reduction in rural poverty. The finding of this research implies that to increase rural household income and reduce rural poverty rate, the government should focus not only on increasing agricultural productivity but also on promoting rural non-farm employment.
The effect of using uncertified citrus seeds on huanglongbing disease incidence in Karo District
Authors: Barus R S , Nion Y A , Widyaningsih S
Published: November 2021

North Sumatra Province is one of the major citrus producers for Siam cultivars in Indonesia. Recently, it experienced a significant decline in citrus production. One of the causes is the presence of huanglongbing (HLB) disease which results in decreased production and plant mortality. The research aim to obtain information on the origin of citrus seeds and to map HLB incidence in eight subdistricts within Karo District. This research was carried out through direct questionnaires to farmers, visual symptoms scoring, and molecular detection with Polymerase Chain Reaction (PCR). At least two villages were taken from each sub-district and three orchards were taken from each village as samples in January 2019. The results showed that in general, citrus plants aged 3 to 15 years. Mostly, citrus planted in Karo originated from uncertified seedlings bought from local and outside seed breeders in the province of North Sumatra. The highest symptoms severity of HLB diseases based on leaf scores and canopy scores were recorded in Barus Jahe subdistrict with 82-83% intensity. The highest HLB incidence were recorded in three subdistricts namely Kabanjahe, Munte, and Brastagi, each with 100% HLB prevalence. This shows that asymptomatic plants are not always free from CLas pathogens. Certified citrus seeds which are free from systemic diseases, followed by improve farmer’s awareness to apply good agriculture practice the initial to sustain Indonesian citrus agroindustry.
The competitiveness of Indonesia’s pepper export and its challenges
Authors: Azahari D H , Purba H J , Erwidodo  , Darwis V , Dabukke F B M , Hestina J , Yusuf E S
Published: November 2021

Indonesia is the second-largest pepper (Piper Nigrum L) producer country after Vietnam and followed by India, Brazil, and Malaysia. While Vietnam is the largest black pepper producer, Indonesia is recognized as the largest white pepper-producing country. With the increasing market competition among them in the international market, Indonesia has to increase the market competitiveness of its pepper exports against its competitors. This study aims to analyze the competitiveness of Indonesian pepper exports in the international market by using secondary data from various sources, including from the Indonesian Ministry of Agriculture and the International Pepper Community for the year 2018. It focuses on Pepper beans (HS 0900411) and Pepper Powder (HS090412) and uses two methods, namely Revealed Comparative Advantage (RCA) and Export Products Dynamic (EPD). The RCA analysis shows that Indonesia has a comparative advantage as a pepper exporter on the international market, both for pepper beans and powder. However, the results of the EPD analysis revealed that such an advantage is declining. For example, the study revealed that the export of pepper beans from Indonesia to the United Stated is in the lost opportunity position, and to Vietnam and Singapore are in the falling star position. A similar situation occurs for pepper powder where Indonesia’s export to Japan, Netherlands, and Germany are all in the falling star position. Such situations are caused by some challenges Indonesian pepper exports face, including the fulfillment of the good agriculture practices (GAP) in the upstream sector and compliance to international standards.
Strategies for sustainable corn production: a case of South Lampung District, Lampung Province, Indonesia
Authors: Ariningsih E , Rachman B , Sudaryanto T , Ariani M , Septanti K S , Adawiyah C R
Published: November 2021

Demand for corn has been increasing from time to time. However, efforts to increase its production face multidimensional challenges and problems. This study aims to assess sustainability status, analyze leverage and prospective factors, and formulate follow-up strategies for sustainable corn production. Data used primarily were data collected through online focus group discussions and interviews with various related agencies and key informants at provincial and district levels. This study was conducted between May and October 2020 in South Lampung District. Multidimensional Scaling (MDS) and Matrix of Cross Impact Multiplications Applied to Classification (MICMAC) were used to assess the sustainability status and analyze leverage and prospective factors. Then, the Multicriteria Policy (MULTIPOL) was used to formulate the follow-up strategies. The results show that the corn production in South Lampung District is classified as less sustainable, with a sustainability index of 49.30. The sustainability of corn production is influenced by ten leverage attributes, four of which are prospective factors, namely corn prices at the farmer level, the number of water pumps, the use of natural pesticides and fertilizers, and the number of corn shellers. The strategies for sustainable corn production could be carried out by by applying reference purchase prices effectively, strengthening farmer partnerships with the feed industry, supporting environmentally friendly corn farming, and optimization and effective use of pre-harvest and post-harvest machinery. It is necessary to evaluate the effectiveness of various assistance and policies implemented at this time to improve the implementation of programs/policies in the future.
Beyond the myths about Indonesia’s deforestation: linking oil palm cultivation to forest degradation and sustainable development goals
Authors: van Assen B W , Azahari D H , Obaideen K , Al Jaghoub H R
Published: November 2021

Oil palm cultivation is under scrutiny by various stakeholders, arguing that it is the main cause for Indonesia’s deforestation. This paper highlights the decades of forest degradation before the first land clearing for oil palm within the context of Indonesia’s development policies. Using ‘direct photointerpretation’ of ‘Historical Imagery’, it assesses the forest degradation and deforestation caused by oil palm cultivation in Indonesia, particularly in light of the UN Sustainable Development Goals (SDGs). Forest degradation has direct trade-offs with most of the SDGs, with the most affected SDGs being Responsible Consumption and Production (SDG12) and Life on Land (SDG15). Historical satellite imagery indicates that the first land clearing for the 176 Kha of oil palm estates sampled palm occurred around 1994. In contrast, only half of this area contained (natural) forests in 1984- a decade before the first land clearing. None of the remaining forests were (near) intact natural forests; all were (heavily) degraded and their biodiversity was strongly compromised. This indicates that oil palm cultivation is not linked to the degradation of Indonesia’s natural forests. Regarding SDG12, we found significant positive impacts from both the direct and indirect land-use changes by oil palm. For SDG15, we observed major positive impacts from the direct land-use changes and minor positive impacts from the indirect land-use changes. Hence, we conclude that oil palm cultivation in the sampled estates has positive impacts on Indonesia’s SDGs and Indonesia’s development policies align with its SDGs.
The effects of rural development on main sources of farm households
Authors: Sumaryanto  , Susilowati S H , Saptana  , Ashari  , Suryani E , Suryadi M
Published: November 2021

In line with the development of the rural villages, rural employment changes. Consequently, the job opportunities of some farmers will also change. This study aims to estimate the effect of rural development and some other factors on the primary source of household income of farmers in several agroecosystems. The data analyzed were the 2013 Agricultural Census, Village Potential and “PATANAS” data. The results showed that farmers’ opportunity of leaving agriculture as the main source of household income increased if cultivated land was smaller and the inequality of landholding in the village increased. In the set of variables that determine rural development, improvements in the dimensions of basic services and basic infrastructure of non-accessibility/transportation positively affect the opportunities of farmers’ households to make non-agricultural work as their source of income. Improvements in the accessibility/transportation dimension, on the other hand, strengthen the ability of farm households to rely on agriculture as a source of household income. Based on the research results, increasing the agricultural sector as a significant contributor to farmer household income can be achieved by increasing accessibility/transportation facilities and improving the distribution of cultivated land.
Policies and strategies for reducing food loss and waste in Indonesia
Authors: Saliem H P , Mardianto S , Sumedi  , Suryani E , Widayanti S M
Published: November 2021

Food loss and waste (FLW) have become one of the targets for Sustainable Development Goals (SDGs), which was agreed to achieve in 2030. This paper aims to provide policy recommendations and strategies to reduce FLW to achieve sustainable food and nutrition security in Indonesia. This paper used secondary data from FAO, BAPPENAS, and various references. Data were analyzed using descriptive analysis. FAO shows that one-third of the food available for human consumption at the global level is lost or wasted during the harvest process and at home. Meanwhile, according to the Ministry of Environment and Forestry, 44% of the landfill in Indonesia is food waste. The EIU report states Indonesia is one of the largest food waste-producing countries globally, with 300 kg/capita/year. BAPPENAS estimates that the amount of FLW in Indonesia during 2000-2019 ranges from 115-184 kg/capita/year. This paper recommends the importance of formulating a national policy on FLW reduction and provision of the national FLW data. The use of technology in the food supply chain from harvested until distributed to the retail level will reduce food loss. The strategy to reduce food waste requires socialization, education, and massive movement. Early education-related culture for not to waste food are essential things to do. Implementing rules and strategies for reducing FLW will significantly increase food availability and realize sustainable food security and nutrition in Indonesia.
Assessing the national seed production system of potato, shallot, and garlic
Authors: Sayaka B , Swastika D K S , Sunarsih
Published: November 2021

A good seed production system results in quality seed. Subsequently, quality seed produces high yield, good quality, and uniform crop performance. This paper aims to assess the national vegetable seed system, especially those seeds produced using vegetative propagation, i.e. potato, shallot, and garlic. The study was conducted in 2019 in West Sumatera, West Java, Central Java, and Northern Sulawesi Provinces. Using primary data from the respondents and secondary data from related institutions, both data were analyzed descriptively. Indonesian Vegetable Research Institute (IVEGRI), universities, and seed companies produce various vegetable seeds. Community in groups or personals as well as regional governments may register their varieties to the Center for Crop Variety Protection and Agriculture Permit (PVTPP). Potato seed producers deal with higher production cost and the farmers have to pay more expensive seed since the Ministry of Agriculture (MoA) implemented the policy on shifting extension potato seed from G4 (fourth generation) to G2 (second generation). The farmers cope with quality and volume of garlic seed supply. Shallot seed adopted by the farmers are generally not certified. Farmers usually adopt certified shallot seed if they receive the government seed assistance. TSS (true shallot seed) has been introduced but farmers’ adoption is limited. Garlic seed certification through post-harvest observation in the seed warehouse without field supervision was valid until the end of 2019 leading to low garlic yield. MoA should facilitate farmers with quality seed of improved vegetable varieties to enhance vegetable production as well as to improve farmers’ profit.
Understanding the importance of fresh mango quality attributes from the perspective of Indonesian domestic consumers
Authors: Kiloes A M , Nurmalinda  , Handayani Y , Pitaloka D
Published: November 2021

The domestic market is the primary market of the Indonesian locally produced mango. There is a positive transition in the economy in this market, highlighting the increase of healthy lifestyles and changes in fresh agri-food product preferences, including fresh mango. Understanding how consumers in this community have a variation in preferences is essential to formulate the strategy to improve the performance of the Indonesian mango value chain. This study aims to identify quality attributes of fresh mango considered important by Indonesian domestic consumers. An online consumer survey involving 435 consumers was conducted in February 2021 in Jakarta, the biggest city in Indonesia. Based on the hierarchical cluster analysis, consumers are divided into four clusters based on their perception of the importance of mango quality attributes. The results highlight the differences between four clusters of respondents in giving importance to intrinsic and extrinsic mango quality attributes, where three out of four clusters concern with quality attributes importance. The differences in respondent characteristics in each cluster can represent how different consumers give importance to a mango quality attribute. It can be valuable information to improve mango value chain performance by understanding that most consumers are concerned about mango quality attributes’ importance.
Factors associated with undernutrition and improvement in Indonesia
Authors: Mauludyani A V R , Suryana E A , Ariani M
Published: November 2021

Stunting among children under five years of age is one of the big problems in Indonesia, damaging adulthood health and work productivity. Studies on the individual and household factors of this issue had been conducted massively. Nonetheless, regional level study on the same issue is still lacking whereas it is important in understanding the problems to formulate better policies. This study aimed to analyze factors associated with stunting prevalence at the provincial level. Data for this study was obtained from the publication of the National Socioeconomic Survey 2018 and Basic Health Research 2018. Multiple linear regression was applied to analyze factors associated with stunting prevalence. There were proportion of expenditure on fish, meat, eggs and milk, tofu and tempe, fruits and vegetables (F&V), cigarettes, and energy and protein intake. Prevalence of stunting at the provincial level was very wide, from 16.2% to 37.9%. Protein adequacy was higher (106.2%) than the Recommended Dietary Allowance. Average proportion of food expenditure at provincial level was 50.1%, in each province ranging from 40.6% to 57.2%; while the highest proportion of expenditure was to purchase F&V (12.8%). The model predicted that the proportion of household food expenditure, proportion of F&V, and protein adequacy were significantly associated with stunting prevalence. Thus, policy on improving household purchasing power and food consumption behavior with balanced nutrition is the key factor in reducing the prevalence of stunting. Social protection programs such as cash transfer and food aid for low-income households should be continued with more accurate recipients.
Bounded complexes of permutation modules
Authors: Benson David , Carlson Jon
Published: November 2021

Let

k
k

be a field of characteristic

p
>
0

p > 0

. For

G
G

an elementary abelian

p
p

-group, there exist collections of permutation modules such that if

C
∗

C^*

is any exact bounded complex whose terms are sums of copies of modules from the collection, then

C
∗

C^*

is contractible. A consequence is that if

G
G

is any finite group whose Sylow

p
p

-subgroups are not cyclic or quaternion, and if

C
∗

C^*

is a bounded exact complex such that each

C
i

C^i

is a direct sum of one dimensional modules and projective modules, then

C
∗

C^*

is contractible.
Dropout during a 12-week transitional exercise-based cardiac rehabilitation programme: a mixed-methods prospective cohort study
Authors: Sommer Charlotte Greve , Jørgensen Lars Bo , Blume Birgitte , Møller Tom , Skou Søren Thorgaard , Harrison Alexander , Tang Lars Hermann
Published: November 2021

Aims

Investigate the dropout rate during a 12-week transitional exercise-based cardiac rehabilitation (exCR) programme focusing on a halfway transition phase between hospital and the municipality-based cardiac rehabilitation. Secondly, investigate patient characteristics associated with dropout at the transition.

Methods and results

Patients with coronary heart disease, heart failure, or heart valve surgery referred to exCR were included in a prospective cohort study conducted between 1 March 2018 and 28 February 2019 at Zealand University Hospital. Exercise-based cardiac rehabilitation was initiated at the hospital with a halfway transitional to local healthcare centres in the municipalities. Dropouts were identified every third week through telephone interviews. A Kaplan–Meier time-to-event analysis was used to investigate time to dropout, while multiple logistic regression assessed associations between patient characteristics and dropout at the transition. Of 560 patients eligible for exCR, 279 participated in the study. Fourteen patients were lost to follow-up and 103 dropped out, resulting in a dropout rate of 39% [95% confidence interval (CI) 33–45%]. Of the 103 dropouts, 72 patients (70%) dropped out at the transition. In the adjusted analysis, patients attached to the labour market were associated with dropout at the transition [odds ratio (OR) = 6.31 (95% CI 2.04–19.54)]. Furthermore, odds of dropping out at transition were reduced for each extra exercise session attended [OR = 0.79 (95% CI 0.66–0.94)].

Conclusion

The transition phase constitutes a critical dropout period in exCR, in which increased attention on patient adherence is needed. In clinical practice, communication and strategies addressing patient retention across settings could be essential to prevent dropout in transitional exCR.
Bacterial community dynamics of tomato hydroponic greenhouses infested with hairy root disease
Authors: Vargas Pablo , Bosmans Lien , Van Calenberge Bart , Van Kerckhove Stefan , Lievens Bart , Rediers Hans
Published: November 2021

The rhizosphere is a complex ecosystem consisting of microbes in the interface between growth medium and plant roots, which affects plant productivity and health. This is one of the few studies analysing bacterial communities present in the rhizosphere of hydroponically grown plants. Tomato grown under hydroponic conditions is prone to hairy root disease (HRD) that is caused by rhizogenic Agrobacterium biovar 1 strains. In this study, using high-throughput amplicon sequencing of partial ribosomal RNA (rRNA) genes, we aimed to characterize bacterial communities in rockwool samples obtained from healthy or HRD-infested tomato during an entire growing season. Alpha diversity of rockwool increased in direct relation with time and samples obtained from healthy greenhouses presented a significantly lower alpha diversity than those from HRD-infested greenhouses. Beta diversity showed that bacterial community composition changed throughout the growing season. Amplicon Sequence Variants (ASVs) identified as rhizogenic Agrobacterium bv. 1 were more prevalent in HRD-infected greenhouses. Conversely, ASVs identified as Paenibacillus, previously identified as biocontrol organisms of rhizogenic agrobacteria, were more prevalent in healthy greenhouses. Altogether, our study greatly contributes to the knowledge of bacterial communities in rockwool hydroponics.
Sapwood area~DBH allometries for 14 common tree species in a successional tropical forest in Thailand
Authors: Yaemphum Siriphong , Unawong Weerapong , Tor-ngern Pantana
Published: November 2021

Sapwood area is an important parameter for estimating canopy transpiration in the forest water cycle. However, sapwood area highly varies across species and forest ecosystems and is difficult to measure directly. Therefore, species- and site-specific allometric equations are needed to estimate the sapwood area of all trees in a forest. Here, we conducted a comprehensive campaign to measure sapwood thickness and to estimate the sapwood area of 14 common tree species in a successional forest in Thailand. These data represent the first comprehensive measurements of sapwood area in south-east Asian successional forests growing under diverse environmental conditions in terms of soil moisture and canopy density. The results show that a power function can significantly explain the relationship between sapwood area and stem size, represented by diameter at breast height (DBH), in all species in both primary and secondary forests. Interestingly, a single equation could describe the sapwood area~DBH relationship in all species and forest stages, except for Dipterocarpus gracilis, an emergent, dominant species in the primary forest. The latter showed slower growth in sapwood area once the trees reached a DBH of ~30 cm. Overall, our results can benefit future studies that estimate canopy transpiration of tropical forests with similar conditions as in our study sites.