Urban Food Waste Research Articles

Urban food (In)security and the role of migrant informal food waste recyclers in Delhi

Urban food systems in developing countries like India are rife with inequalities that preclude food security for all. In this context, the paper examines the role played by informal workers in the ‘circular economy’ for food in improving the accessibility of food and urban food security in Delhi, India. Evidence from an informal street market close to one of the country's largest urban wholesale markets of food grains, pulses and spices in Delhi reveals rare details of how urban food waste plays a significant role in the livelihood strategies of the city's poor migrants while also contributing to the urban food security of the low-income households. Although there is a growing recognition that the street food sector plays an important role in urban food security, the vital role played by waste collectors, home-based workers and street vendors in restoring discarded food grain, pulses and spices, and bringing them back into the urban food system has been largely invisible. This invisibility extends to the gendered segregation of work in food waste recycling, where our study found that predominantly women undertake labour-intensive and lower paid tasks at the bottom of the hierarchy. The paper provides an overview of the nature of informal livelihood, the contribution of informal workers and challenges and opportunities in the urban circular economy for food. However, their contributions are often overshadowed by health and safety concerns about the reuse of discarded food. Further, an analysis of the current policy landscape in urban India also indicates that informal workers are marginalised in the circular economy for food. While the state owes these informal workers support and protection for their contribution to the ‘Circular economy’ for food and urban food security, any effort to sustain these practices would need to incorporate adequate health and safety procedures.

Pigs, planners, and potato peels: the Soviet Scheme to feed pigs with urban food waste as a waste regime under Stalin, Khrushchev, and Brezhnev

ABSTRACT In this article, I study why and how Soviet planners organized a scheme to collect food waste from Soviet residential buildings and food service establishments in Moscow and other cities and utilize it as a feedstock for pork production. By relying on sociologist Zsuzsa Gille’s “waste regime” concept and a great variety of primary sources, I analyze the Soviet “garbage feeding scheme” as a social institution that patterned the social behavior of actors who engaged with food waste in the USSR from the early 1930s until the beginning of the 1980s. I argue that Soviet planners, informed by zootechnics, perceived garbage feeding as a way to reconcile their goal to increase meat production with the reality of continuous grain shortages. As such, they imparted food waste with the economic meaning that it could be turned into other commodities – wheat and meat. I demonstrate that the Soviet garbage feeding scheme never became a success, as the collection of food waste that laid dispersed across many locations in cities posed too big of an organizational challenge for the USSR’s centralized bureaucracy, and because planners did not succeed at integrating Soviet citizens into its scheme.

Incorporating decentralized facilities into the food waste treatment infrastructure in Megacity: A locational optimization in Beijing

Food waste management has emerged as a pivotal issue with the acceleration of urbanization. Inappropriate treatment of food waste causes environmental contamination, resource squandering, and land occupation. This research explores optimal strategies in Beijing with an experimental case study on the bioconversion technology using black soldier fly larvae (BSFL), comparing centralized and decentralized approaches. We studied waste sorting behaviors influenced by community characteristics, employing an Agent-Based Model (ABM) and a mixed integer non-linear programming (MINLP). Results indicate that 29 % of Beijing's food waste could be suitably managed through decentralized methods with BSFL, particularly in outlying areas and densely populated suburbs. Decentralized treatment exhibits the potential to boost waste separation participation in medium-sized, close- knit communities. However, this approach encounters hurdles related to technological implementation, public perception, and urban planning. This study underscores the need for community-specific strategies and a concerted effort from communities, government, and the private sector in advancing sustainable urban food waste management.

Urban food waste and socioeconomic drivers in China

Food waste negatively impacts societal well-being, environmental, and economic sustainability. Previous studies have typically conducted single-site surveys or overlookd changes in food waste due to new consumption models. Here, we conducted a national survey on food waste across diverse dining contexts in urban China from 2021 to 2024. Our findings reveal that urban areas generate a staggering 137 million tonnes (Mt) of food waste annually, accounting for 26% of total food consumption, and 55 ​Mt is edible waste, representing a significant loss of resources. Per capita, annual food waste amounts to 55 ​kg raw, 59 ​kg edible, and 34 ​kg inedible. Eating out, education and disposable income are the main drivers of food waste. Higher economic and educational levels increase waste, while gender, age, and family size indirectly influence waste through complex socioeconomic relationships. Restaurants emerge as the largest contributors to edible food waste, while households lead in overall waste production. Significant variations in waste patterns were observed across different operational models, with decentralized kitchens facing more severe raw food waste issues compared to central kitchens. Notably, the prevalence of vegetable and staple food waste across all consumption settings, with meat waste being more common when dining out. With China in the initial stages of developing a top-level food waste reduction strategy, our findings provide crucial insights for policy-making and industrial practices.

Zerohunger Link-Bridging Food Waste and Hunger Gaps-An Integrated Approach

The Food and Agriculture Organisation (FAO) of the UN estimates that 1.3 billion tonnes, or one-third, of the food produced for human consumption is lost or wasted, making food waste a major global issue. About 40% of food produced in India is wasted, and homes, restaurants, hotels, weddings, and other gathering places are major contributors to this problem. In India, a large number of nonprofit organisations are actively trying to collect excess food and provide it to people in need in order to alleviate hunger, malnutrition, and food waste. The objective of this proposed project is to manage a prepared food supply chain through the development of an innovative application, with the goal of addressing urban excess food waste and hunger-related fatalities. This programme will make it easier to connect surplus and deficient food resources within a community network by using an ERP paradigm. Administrators will be able to monitor donor and recipient information, assess hotels according on their contributions and input, and efficiently manage logistics thanks to the technology. Trusts and beneficiaries will be able to register, use a matching algorithm to find local food resources, choose and request food, communicate directly with donors, and offer insightful feedback. Donors will have the ability to sign up, enter the information of the food that is provided, reply to requests, and get in touch with recipients and trusts. Additionally, staff members and delivery persons will be equipped with the necessary tools to register, oversee pickups and deliveries, and send out timely alerts when they are finished. In the end, this all-encompassing strategy seeks to reduce food waste and lessen hunger in communities by establishing an effective and transparent method for the redistribution of excess food resources

A Smart Food Donation System using Mobile Technology to Reduce Food Waste

Food wastage is a significant global challenge, with approximately one third of food produced for human consumption, amounting to 1.3 billion tonnes, being lost or wasted according to the Food and Agriculture Organization (FAO) of the UN. In India, around 40% of food produced goes to waste, with sources such as weddings, events, restaurants, hostels, and households contributing substantially to this issue. Numerous non-profit organizations in India are actively working to combat hunger, malnutrition, and food wastage by collecting surplus food and distributing it to those in need. This proposed project aims to tackle urban excess food waste and hunger-related deaths by developing an innovative application designed to manage a cooked food supply chain. Using an ERP model, this application will facilitate the connection between surplus and deficient food resources within a community network. The system will empower administrators to oversee donor and recipient details, evaluate hotels based on their contributions and feedback, and coordinate logistics effectively. Trusts and recipients will have the ability to register, locate nearby food resources through a matching algorithm, select and request food, engage in direct communication with donors, and provide valuable feedback. Donors will be able to register, input available food details, respond to requests, and communicate with trusts and recipients. Furthermore, employees and delivery personnel will have the tools to register, manage pickups and deliveries, and provide timely notifications upon completion. This comprehensive approach aims to establish an efficient and transparent solution for the redistribution of surplus food resources, ultimately contributing to the reduction of food waste and alleviation of hunger in communities

Urban food waste for soil amendment? Analysis and characterisation of waste-based compost for soil fertility management in agroecological horticultural production systems in the city of Rosario, Argentina

Urban and peri-urban lands can be an important source of food production for localised and sustainable food systems, however, their soils can be of poor quality, degraded or damaged by anthropic activities, and little is known about their suitability or safety. This paper aims to contribute to this knowledge gap by assessing the soil remediation capacity and qualities of different types of compost made from urban and peri-urban organic wastes for agroecological food production. Prepared over the course of 2021, and used in 2022 for food growing, five different composts were observed and analysed, in two different farms in the city of Rosario, Argentina. Four raw materials generated largely by local industries were used to make the composts: chicken manure, rumen (cow’s stomachs), brewer’s bagasse (byproducts of the beer industry) and urban leaves collected from the municipality waste collection. These were mixed in different proportions (all reaching the 20–30 C/N ratio, typical of quality compost) to produce viable growing substrates where radishes and lettuces were grown. The aim of the study was to assess the possibility, quality and limitations to use locally available organic inputs for soil fertility management in agroecological farming, in the context of urbanisation and to assess pathways to develop closed-cycle agroecological agriculture at metropolitan level. Natural manure substrates (raw and composted) were analysed, as well as crops grown and fertilised with each of the substrates. The attributes and limiting factors of each substrate and their response to local soil conditions were compared and physicochemical, biochemical, and microbiological analyses were performed, including among others, the study of microbial biomass, biological activity, biophytotoxicity, pH, aerobic heterotrophs, nitrogen fixation, and the presence of antibiotics, agrochemicals and heavy metals. The results of the analyses show that all the composted materials improved the physical, chemical and biological properties. However, in some cases, pollutants were present even after composting. Analysis carried out on the vegetables generally indicate undetectable levels or levels below the admissible limits, demonstrating the filtering capacity of the different composts and the soil.

Citizens’ deliberation on solutions to fight urban household food waste and nexus with growing urban gardens: The case of porto metropolitan area in Portugal

Food waste is currently acknowledged as a major societal challenge, including the food waste at the household level estimated to be responsible for the wastage of one third of the food produced for human consumption. Hence, tackling household food waste (HFW) is gaining a momentum in societal and policy agendas accompanied by an increasing effort of the scientific community to deliver evidence to address the research gaps on the causes and on the solutions to address this multidimensional societal problem. The proposed solutions by published literature to mitigate HFW can be unfolded into four major types, actions to raise people awareness, participatory actions, economic incentives, and collective actions. However, there is little evidence on the household's assessment of the different types of actions and its combination. This paper contributes to this research gap by adopting an innovative participatory approach, using deliberative focus groups (DFG), and analyzing the collected data through content analysis resorting to the software Maxqda. We had conducted six DGF in the Porto metropolitan area before and during the pandemic COVID-19 crisis. Our results highlight the citizen's option for more holistic actions in comparison to separate actions as a way to effectively fight food waste at household level. Another finding of our study is that citizen's growing urban gardens found it the more effective way to reduce household food waste. These results suggest that urban policies and underlying legal frameworks should favor holistic solutions to incentivise fighting HFW and account for the urban gardens as a relevant part of the solution. In addition, the study has shown that qualitative deliberative citizen-led approaches show insightful to understand how common people perceive as alternative or complementary the different types of actions to fight HFW proposed by the literature review.

The last mile of policy design: the case of urban food waste intervention

This study investigates the dynamics and challenges in the specification of policy design at the micro level, when broad policy issues are translated into specific interventions. By conducting an in-depth case study of urban initiative dealing with food waste in Warsaw, we unravel the complex process of translating policy objectives into action. Our findings have three points. First, the dynamics of micro-level design provide a broad space for policy designers to make decisions that reshape both the understanding of the policy problem and the change strategies used to address it. Second, policy design can be both engineering and bricolage. It results from changes in context, political considerations, research evidence, and institutional actors’ pragmatic decisions. Third, the Theory of Change can be used as canvas to guide designers through this dynamic process. Future research is recommended to generalize our findings across different contexts and explore the roles of diverse stakeholders in the policy design process.

Biowaste management by hydrothermal carbonization and anaerobic co-digestion: Synergistic effects and comparative metagenomic analysis

The feasibility of anaerobic co-digestion in semicontinuous mode of two major urban biowaste, food waste (FW) and garden and park waste (GPW) (75 % FW and 25 % GPW) as well as the co-digestion of FW with the process water originated from the hydrothermal carbonization of GPW (95 % FW and 5 % process water), both on a COD basis, has been assessed. The effect of varying organic loading rate (OLR) from 1.5 to 3.5 g COD/L·d on methane yield, gross energy recovery, and microbiome population was evaluated. For comparison, anaerobic digestion of FW was also conducted to determine the best strategy for sustainable biowaste management. This study showed an optimal OLR of 2.5 g COD/L·d. Acetic and propionic acid content increased as OLR raised for each condition studied, while methane yield decreased at the highest OLR tested indicating overloading of the system. The anaerobic co-digestion of FW and process water showed a 10 % increase on methane production compared to anaerobic digestion of FW (324 vs. 294 mL CH4 STP/L·d). Moreover, it enhances the process due to a greater abundance and diversity of hydrolytic and acidogenic bacteria belonging to Bacterioidota, Firmicutes, and Chloroflexi phyla, as well as promotes the hydrogenotrophic pathway under higher propionic concentrations which is not usually favoured for methane production. The integration of hydrothermal carbonization of GPW with the anaerobic co-digestion of 95 % FW and 5 % of process water results in the highest potential energy recovery and could be a good strategy for sustainable management of urban biowaste.

Diversities and sustainability of dietary water footprint and virtual water flows in China

Increasing dietary diversity while avoiding additional stress on water resources remains a critical challenge for sustainability. However, the precise understanding of the physical water consumption and virtual water flows associated with diversified diets remains unclear. This study estimated the dietary water footprints (WFs), interprovincial virtual water flows, followed by assessing the unsustainable blue WF and water scarcity footprint (WSF) in China over 2015–2019. Rural and urban food intake, waste, and differences between eating at home and out were considered. The findings reveal that China’s dietary patterns have gradually strayed from recommended guidelines, with an overconsumption of cereals and inadequate intake of dairy products and potatoes. Despite a decrease, both unsustainable blue WF and WSF remained significant, measuring 249.61 Gm3 and 807.77 Gm3 H2O-eq, respectively, in 2019. Notably, water-scarce regions still accounted for a substantial portion of unsustainable virtual blue water exports. The diet related virtual water reallocation can offset the water savings on the crop production side.

Balancing people, planet, and profit in urban food waste management

Food waste is a complex problem and critical challenge for the sustainable development of circular economies, with interconnected social, environmental, and economic impacts. Supporting the identification of strategies that best minimise these impacts on people, planet and profit, this paper explores the dynamic impacts of food waste management options on the triple bottom lines of sustainable development in urban circular economies. We present a system dynamics model of the urban agri-food supply chain. This model simulates the fluxes of food and food waste throughout the supply chain, as well as their impacts on economy (i.e., costs and benefits for each sector and the broader economy), society (i.e., food insecurity) and environment (i.e., water, energy, and carbon footprints). Using Bristol city in the United Kingdom as a case-study, we evaluate the impacts of seven food waste management options (i.e., reduction, redistribution, animal feed, anaerobic digestion, composting, incineration, and landfilling). The results show that food waste reduction in consumer sectors (i.e., households and hospitality and food services) and redistribution in supply sectors (i.e., primary production and manufacture) offer the greatest benefits for the environment, society, and economy. For the retail sector, both reduction and redistribution options are highly favourable. Although these options can potentially have some adverse economic effects on the supply side due to a reduction in demand, their considerably high benefits make them high-reward, low-risk options. We thus conclude that food waste reduction and redistribution are the only options with a clear triple-win for people, planet and profit. This paper makes a significant contribution by introducing a robust quantitative model and a novel triple bottom line framework for sustainable food waste management in urban circular economies.

Urban household food waste behavior and reduction strategies in China: A case study of Zhengzhou city

Urban household food waste behavior and reduction strategies in China: A case study of Zhengzhou city

Urban green waste bulking agent is the major source of antimicrobial resistance genes persisted in home compost, not animal manure

Urban green waste and food waste are often used as bulking agents to prepare home compost in combination with animal manure in urban horticulture and community gardening. Although it is known that antimicrobial resistance genes (ARGs) persist in home compost, their origins have not been determined. In addition, the factors contributing to ARGs persistence remain unclear. In this study, we aim to (i) characterize the changes in the microbiome and antimicrobial resistome during the composting process of home compost using metagenomics shotgun sequencing, (ii) identify the source of the ARGs persisted in home compost using SourceTracker, and (iii) elucidate the collective effect of compost microbiome and environmental factors, including the physicochemical properties and antibiotics concentration of home compost, in contributing to ARG persistence using Procrustes analysis, co-occurrence network analysis, variation partitioning analysis, and structural equation modeling. SourceTracker analysis indicated that urban green waste bulking agent was the major source of the persisting ARGs in home compost instead of animal manure. Procrustes analysis and co-occurrence network analysis revealed a strong association between microbiome and antimicrobial resistome. Variation partitioning analysis and structural equation modeling suggested that physicochemical properties shaped the antimicrobial resistome directly and indirectly by influencing the microbiome. Our results indicated that the persistence of ARGs in home compost might be due to the succession of microbial species from the urban green waste bulking agent, and the physicochemical properties might have defined the compost environment to shape the microbiome in the compost, thus, in turn, the persisting antimicrobial resistome.

Laboratory-adapted and wild-type black soldier flies express differential plasticity in bioconversion and nutrition when reared on urban food waste streams.

The black soldier fly (BSF) offers a potential solution to address shortages of feed and food sources; however, selecting effective rearing substrates remains a major hurdle in BSF farming. In an urban area like Singapore, current practice is based on rearing BSF on homogeneous waste streams (e.g., spent brewery grains or okara) because heterogeneous food wastes (e.g., mixed kitchen/canteen waste or surplus cooked food) present several operational challenges with respect to the standardization of development, nutritional content, and harvesting. In this study, we compared two genetic strains of BSF larvae (wild-type and laboratory-adapted line) in a bioconversion experiment with diverse types of food waste (homogeneous/heterogeneous; plant/meat) and we quantified the phenotypic plasticity. Our results demonstrate different plasticity in bioconversion performance, larval growth and larval nutrition between the two BSF lines. This difference may be attributed to the selective breeding the laboratory-adapted line has experienced. Notably, larval lipid content displayed little to no genetic variation for plasticity compared with larval protein and carbohydrate content. Despite variation in larval development, heterogeneous food wastes can produce better performance in bioconversion, larval growth, and larval nutrient content than homogeneous food waste. All-meat diets result in high larvae mortality but larval survival could be rescued by mixing meat with plant-based food wastes. Overall, we suggest using mixed meals for BSF larvae feeding. Targeted breeding may be a promising strategy for the BSF industry but it is important to consider the selection effects on plasticity in larval nutrition carefully. © 2023 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

Policy Recommendations for Reducing Food Waste: An Analysis Based on a Survey of Urban and Rural Household Food Waste in Harbin, China

Food waste has become a pressing global issue in recent years. In China, the issue of food waste has become increasingly severe. As a provincial capital city, Harbin is also a major agricultural city in China with distinct urban and rural features. This paper uses Harbin as a case study to evaluate different strategies for preventing and reducing food waste based on these urban–rural differences. This research is based on official data on household food waste in urban and rural areas of Harbin, as well as data collected from 333 telephone surveys through stratified random sampling. Independent t-tests, one-way analysis of variance (ANOVA), and logistic regression analysis were used to analyze the survey data, followed by a review of existing food waste policies and strategies. Our findings show that Harbin has had a positive response in adhering to national anti-food waste policies. However, its implementation has not been effective. There is a continuous increase in food waste generation. Moreover, gender, level of education, and household annual income have a significant impact on residents’ food waste habits and there are significant differences between urban and rural areas in terms of “eating out” and “ordering food ingredients”. The average daily amount of food waste generated by urban households is 3216.31 g, which is 2.4 times that of rural households. There are also differences in the causes of food waste between urban and rural residents due to different diets and eating habits. As a result, feasible and effective policy recommendations have been proposed to reduce food waste in response to these urban–rural differences.

Challenging the food waste hierarchy

Food waste is a multi-faceted and complex problem for urban circular economies with far-reaching environmental impacts. Effectively addressing this problem requires a comprehensive understanding of the food waste impacts on food, energy, water, and climate (FEWC) systems. Despite complex dynamics in the FEWC nexus, the most popular guidance for food waste management is the food waste hierarchy framework – which fails to account for ensuing impacts on all nexus elements.Aiming to optimise the framework, we adopt a participatory approach to develop the first comprehensive and replicable system dynamics model of the FEWC footprints of urban food waste throughout the agri-food supply chain. The quantitative model compares different food waste management options, and relevant policies in Bristol, UK (2018–2030).Unlike the guidance of the traditional waste hierarchy framework, our findings show that the preferability of each option can vary for each sector within the supply chain and for each FEWC element. Our results show that increasing food surplus redistribution in the supply sectors and reducing food waste in consumer sectors are the most preferable approaches to reduce the environmental impacts of food. Feeding food leftover to pets at household level also has a promising impact. Other options involve trade-offs between energy and carbon footprints, while having minimal impact on water footprint.We conclude that the traditional food waste hierarchy is too simplified to provide reliable guidance for environmentally sustainable food waste management and policy. Instead, we present an improved food waste hierarchy framework that accounts for the scale of preferability of each option for different sectors and different FEWC nexus elements. This novel framework thus provides more nuanced and more robust understanding of food waste impacts on the FEWC nexus in urban circular economies, thereby enabling the development of policy and management options that are optimised for environmental sustainability.

Approaching Urban Food Waste in Low- and Middle-Income Countries: A Framework and Evidence from Case Studies in Kibera (Nairobi) and Dhaka

Increased urbanization rates pose crucial challenges in terms of food systems’ sustainability, including urban food waste (FW). The global narrative around FW has focused mainly on Western countries, but recent evidence shows that FW is also a major issue in the developing world. The objective of this article is to define the characteristics and drivers of urban FW in low- and middle-income countries (LMIC). We firstly present a tailor-made three-step approach to identify urban FW hotspots in LMIC, understand the main drivers and design and implement prevention and reduction interventions considering LMIC food system characteristics. We then draw on results from four different urban FW case studies based in Nairobi (Kenya) and Dhaka (Bangladesh) and discuss their characteristics in light of the proposed approach. The case of Nairobi focuses on quantifying and understanding possible drivers of household FW in Kibera and characterizing FW disposal through a household survey (N = 774). The other three studies examine FW at retail, food service and institutional levels for onions, mangoes and beef in Dhaka. The results confirm that FW happens at the urban supply chain level, particularly among mobile vendors but also among households living below the poverty line. The article thus urges LMIC municipalities to consider urban FW strategies as a key action to tackle food security, environmental issues and FW management challenges.

Cosmotechnic Encounters: Designing with foodwaste, landscapes, and livelihoods

Organic wastes are vital for farming, energy generation, and carbon capture—embodying naturally the ideal of circularity. However, due to their messiness and weight, organic matter arrives with biological and sociotechnical challenges. What kind of imaginaries, recovery practices, and contingencies are required to reclaim and revalue such lively material? Pursuing this, how can we mitigate the detriment of urban food waste, and, in turn, regenerate regions impacted by climatic and economic precarity? In response, we conducted a series of collaborative encounters with farmers, chefs, retailers, and biotech entrepreneurs in rural Hong Kong to explore what a reverse supply chain might involve that redirects organic wastes from the city to agricultural landscapes. We took insight from Yuk Hui’s cosmotechnics vision, design studies, and diverse economies for differentiating a broader spectrum of economic possibilities. Following this embeddedness with interdependent livelihoods enables us to live in fullness with the world, particularly with organic waste as the foundation for contributing to a circularity that tangibly interlinks humans, nonhumans, cities, and the countryside to different futures. Such constellations can manifest varied instances of economisation—the mutually regenerative and stabilising relationships which facilitate exchange. They also embody a cosmological imaginary that reconfigures local economies predicated on designing with the shapelessness of contingency: staying put with what easily is ignored while relinquishing determinist categories, fragmentation, and totalising systems.

Closing the food waste loop: Analysis of the agronomic performance and potential of food waste disposal products

The recycling of urban food waste (FW) is of great importance to the sustainable and low-carbon urban development. Focusing on the solid residues of FW aerobic composting and anaerobic digestion, this study selects three FW disposal products (FWDPs) and compares their nutrient compositions with the main traditional organic fertilizers in China through a literature review; carries out a seven-season field experiment with 30% of the nitrogen in FWDPs substituted for equal chemical nitrogen to explore the impacts on vegetable yields; and uses a field questionnaire to investigate farmers' awareness of FWDPs. FW aerobic compost and FW digestate solid residue can significantly increase seven-season total yields by 21.5% and 17.2% respectively compared with conventional chemical fertilizer alone, and maintain the same yield level with conventional combined application of chicken manure and chemical fertilizer, proved to be effective on crop yield as organic fertilizers. The case study of Xiamen indicates that FWDPs have great potential to produce organic fertilizers and reduce the application amount of pure chemical fertilizers by 5.6% under current conditions, where around one-third of restaurant FW is disposed of using anaerobic digestion technologies. Measures like formulating supportive regulations, expanding government propaganda, and producing qualified and cost-effective commercial organic fertilizers with FWDPs will improve farmers’ knowledge and acceptance of FWDPs.