RESUMO
Developing a conceptual model is vital for small-scale organic farmer's credit access to sustain the livelihoods. However, smallholders continually face severe problems in getting finance that lead to reduce investment and in turn, challenges the livelihoods. Therefore, the aim of the present study was to establish and empirically test a theoretical model to explore how agility and innovativeness in organic food value chain finance are achieved through ITI, TRST, CG, ICT, and IS, and how these, in turn, can accelerate financial flow in the value chain and enhance competitiveness. The present study used a survey method and collected data from small-scale farmers, traders, and financial institutions. The model and hypothesis are tested using data obtained from 331 respondents through partial least square structure equation modeling techniques. We argue that development of theoretical model show potential to increase creditworthiness of smallholders and overcome uncertainties that impede traditional value chain credit arrangement. Thus, the present study could provide new ways to integrate the value chain partners, through information and communication technology and governance arrangements in the organic food value chain financing. This study demonstrates that the mediations of innovativeness and agility significantly affect the development of new financial products to make agile the financial flow, which in turn positively influences value chain competitiveness. Significant judgments are required for trustworthy relations among the value chain partners to positively harness innovative product development for swifter value chain finance. Therefore, this theoretical model should not be regarded as a quick solution, but a process of testing, error, and learning by doing so.
Assuntos
Alimentos Orgânicos/economia , Agricultura Orgânica/economia , Fazendeiros , Humanos , Análise dos Mínimos Quadrados , Análise Multivariada , PaquistãoRESUMO
Objetivo: Foram avaliadas as dificuldades no processo de compra /venda de produtos orgânicos da agricultura familiar para a alimentação escolar em 21 municípios do Sul do Brasil e identificadas as ações para superá-las. Métodos: Estudo quali-quantitativo realizado mediante entrevistas semiestruturadas com 111 informantes-chave envolvidos na alimentação escolar. Os entrevistados foram arguidos sobre as dificuldades da compra / venda de alimentos orgânicos para a alimentação escolar e sobre as ações que estão sendo desenvolvidas e/ou em planejamento para superação dessas problemáticas. Realizou-se análise descritiva das perguntas fechadas com base na distribuição da frequência e análise de conteúdo com codificação e categorização das questões abertas. Resultados: A maioria dos municípios (n=19) não comprava alimentos orgânicos provenientes da agricultura familiar. A pouca disponibilidade de mercado fornecedor e a baixa produção de alimentos orgânicos foram as dificuldades mais relatadas. Em contrapartida, os custos elevados dos produtos e a ausência de interesse da gestão pública na aquisição de alimentos orgânicos foram dificuldades pouco citadas. Os entrevistados apontaram que a compra/venda poderia aumentar com o fortalecimento dos processos de certificação participativa e se os envolvidos tivessem maiores informações sobre os benefícios e riscos dos modelos produtivos. Conclusões: Evidenciaram-se o fortalecimento da assistência técnica e extensão rural, desenvolvimento das regulamentações e incentivos para a certificação orgânica, apoio e investimento para a certificação participativa e orientações técnicas são estratégias necessárias para o incentivo da produção e consumo de alimentos orgânicos na alimentação humana. (AU)
Objective: To evaluate the difficulties in the process of buying/selling organic products from family farming for school meals in 21 municipalities in southern Brazil and to take actions to overcome them. Methods: This is a qualitative and quantitative study through semi-structured interviews with 111 key informants involved in school meals. The interviewees were asked about the difficulties of buying/selling organic food for school meals and about the actions developed and/or in planning to overcome these problems. Descriptive analysis of closed questions was performed based on frequency distribution and content analysis with coding and categorization of open questions. Results: Most municipalities (n = 19) did not buy organic food from family farming. The limited availability of the supplier market and the low production of organic foods were the most reported difficulties. On the other hand, the high costs of the products and the lack of interest by the public management in the acquisition of organic foods were difficulties little mentioned. Respondents highlighted that buying/selling could increase with the strengthening of participatory certification processes and if those involved had more information about the benefits and risks of productive models. Conclusions: The strengthening of technical assistance and rural extension, development of regulations and incentives for organic certification, support and investment for participatory certification, and technical guidelines were necessary strategies to encourage the production and consumption of organic human food. (AU)
Assuntos
Humanos , Política Pública , Alimentação Escolar , Comercialização de Produtos , Agricultura Orgânica/economia , Alimentos Orgânicos/economia , Brasil , Abastecimento de AlimentosRESUMO
AIM: To select the best combination of arbuscular mycorrhizal fungi and efficient vermicompost dose in maximizing the production of leaf metabolites in Punica granatum seedlings. METHODS AND RESULTS: The experimental design was in a 3 × 3 factorial arrangement: three inoculation treatments (inoculated with Gigaspora albida, inoculated with Acaulospora longula and control not inoculated) × 3 doses of vermicompost (0, 5 and 7·5%). After 120 days of inoculation, biomolecules, plant growth parameters and mycorrhizal colonization were evaluated. The combination of 7·5% of vermicompost and A. longula was favourable to the accumulation of leaf phenols, with an increase of 116·11% in relation to the non-inoculated control. The total tannins was optimized/enhanced when G. albida and 7·5% of fertilizer were used, registering an increase of 276·71%. CONCLUSIONS: The application of 7·5% of vermicompost associated with A. longula and G. albida is a low cost alternative to increase the levels of bioactive compounds in pomegranate leaves. SIGNIFICANCE AND IMPACT OF THE STUDY: This is the first published report of optimization of bioactive compound production in P. granatum by the combined use of mycorrhiza and vermicompost doses.
Assuntos
Produção Agrícola/métodos , Fertilizantes/análise , Glomeromycota/fisiologia , Micorrizas/fisiologia , Agricultura Orgânica/métodos , Folhas de Planta/química , Punica granatum/crescimento & desenvolvimento , Produção Agrícola/economia , Frutas/química , Frutas/crescimento & desenvolvimento , Frutas/metabolismo , Agricultura Orgânica/economia , Fenóis/análise , Fenóis/metabolismo , Folhas de Planta/crescimento & desenvolvimento , Folhas de Planta/metabolismo , Punica granatum/química , Punica granatum/metabolismo , Plântula/química , Plântula/crescimento & desenvolvimento , Plântula/metabolismo , Taninos/análise , Taninos/metabolismoRESUMO
The species diversity of hydrophytes suitable for human consumption and the possibility of their introduction into the practice of organic farming and sustainable polyculture are explored in the article. The economic and environmental potential of shallow freshwater areas and waterlogged areas are discussed from the perspective of sustainable agriculture. The possibility of using some hydrophyte plants for food and drugs is indicated. The necessity of using the practice of traditional nature management by the native population in relation to water and near-water food plants is mentioned. The relevant issues of providing the growing population of the Earth with food and technical plant raw materials from hydrophytes are discussed. It has been established that a necessary condition for the operation of the market for wild-growing medicinal hydrophytes in accordance with the concept of sustainable development is its efficient legal regulation at all levels.
Assuntos
Plantas Comestíveis , Plantas Medicinais , Ingestão de Alimentos , Flora Aquática , Criptófitas , Indústria Agropecuária/legislação & jurisprudência , Agricultura Orgânica/economiaRESUMO
On-farm decision support in animal health management requires a tailor-made failure costs (FCs) assessment of production disorders for the individual farm. In our study we defined a generic framework to estimate the FC of production disorders in dairy cows. We converted the framework to a practical tool in which the farm-specific FC of mastitis, ketosis, lameness and metritis were estimated for 162 organic dairy farms in four European countries. Along with the structure of the framework, the FC estimation required three distinct types of model input: performance input (related to herd performance parameters), consequential input (related to the consequences of the disorders) and economic input (related to price levels). Input was derived from official herd recordings (e.g. test-day records and animal health recordings) and farmers' responses (e.g. questionnaire replies). The average FC of mastitis, ketosis, lameness and metritis amounted to 96, 21, 43 and 10 per cow per year, respectively. The variation in FC outcomes was high among farmers and countries. Overall ranking of the disorders based on absolute values was the same for all countries, with mastitis being the costliest disorder followed in order by lameness, ketosis, and metritis. Farm specific estimates can be used to rank production related disorders in terms of their associated failure costs and thus provide valuable insights for herd health management. The practical calculation tool developed in this study should be considered by farmers or herd health advisors to support their animal health practices or advice.
Assuntos
Doenças dos Bovinos/economia , Indústria de Laticínios/economia , Agricultura Orgânica/economia , Bem-Estar do Animal , Animais , Bovinos , Europa (Continente) , Feminino , LeiteRESUMO
BACKGROUND: Consumers perceive that organic meat has superior nutritional properties compared to conventional meat, although the available evidence from commercial samples is very scarce. The present study compared the nutritional composition of organic and conventional beef meat sold at retail, including, for the first time, the bioactive compounds coenzyme Q10 , carnosine, anserine, creatine and taurine. Sampling comprised two muscles: longissimus thoracis and supraspinatus. RESULTS: Organic beef had 17% less cholesterol, 32% less fat, 16% less fatty acids, 24% less monounsaturated fatty acids, 170% more α-linolenic acid, 24% more α-tocopherol, 53% more ß-carotene, 34% more coenzyme Q10 and 72% more taurine than conventional beef. Differences between organic and conventional samples were clearly dependent on the muscle because longissimus thoracis and supraspinatus showed different patterns of compound accumulation. CONCLUSION: To our knowledge, a higher amount of bioactive compounds in organic beef meat is reported for the first time in the present study. Retail organic beef had a higher nutritional value than retail conventional beef, which resulted from better-balanced lipid and bioactive compound contents. © 2019 Society of Chemical Industry.
Assuntos
Criação de Animais Domésticos/métodos , Bovinos/crescimento & desenvolvimento , Carne/análise , Agricultura Orgânica/métodos , Ração Animal/análise , Ração Animal/economia , Criação de Animais Domésticos/economia , Animais , Bovinos/metabolismo , Colesterol/análise , Colesterol/metabolismo , Ácidos Graxos/química , Ácidos Graxos/metabolismo , Músculo Esquelético/química , Músculo Esquelético/metabolismo , Valor Nutritivo , Agricultura Orgânica/economia , beta Caroteno/análise , beta Caroteno/metabolismoRESUMO
Consumer spending on organic food products has grown rapidly. Some claim that organics have ecological, equity, and health advantages over conventional food and therefore should be subsidized. Here we explore the distributive impacts of an organic fruit subsidy that reduces the retail price of organic fruit in the US by 10 percent. We estimate the impact of the subsidy on organic fruit demand in a representative poor, middle income, and rich US household using three analytical methods; including two econometric and one machine learning. We do not find strong evidence of regressive redistribution due to our simulated organic fruit subsidy; the poor household's relative reaction to the subsidy is not much different than the reaction at the other two households. However, the infra-marginal savings from the subsidy tend to be larger in richer households.
Assuntos
Alimentos Orgânicos/economia , Frutas/economia , Agricultura Orgânica/economia , Comércio/economia , Comércio/estatística & dados numéricos , Comércio/tendências , Simulação por Computador , Comportamento do Consumidor/economia , Comportamento do Consumidor/estatística & dados numéricos , Financiamento Governamental/economia , Financiamento Governamental/estatística & dados numéricos , Alimentos Orgânicos/estatística & dados numéricos , Humanos , Renda/estatística & dados numéricos , Aprendizado de Máquina , Agricultura Orgânica/estatística & dados numéricos , Agricultura Orgânica/tendências , Estados UnidosRESUMO
The aim of the paper was to assess how consumers evaluate organic labeled fruits and to what extent they are willing to pay a premium for fresh fruits with organic labels. A double-hurdle model is applied to data obtained by interviewing 407 fresh fruit consumers in nine Chinese cities. Willingness-to-pay a premium was modeled as a function of a series of demographic, socio-economic variables, plus fruit attributes, perceptions of fruit safety, and risk attitudes. Results indicate that the most important factors influencing willingness to pay a premium involved positive attitudes toward organic label, attention to fruit safety, the perception of importance of fruit attributes. Moreover, the more income consumers earn, the more likely they would be willing to pay a premium for organic fresh fruits. The recorded consumer interest in safety and quality of fresh fruits reveals that a promising market for organic fruits could be developed by an adequate knowledge on organic label and an effective market monitoring system.
Assuntos
Comportamento do Consumidor , Frutas/economia , Agricultura Orgânica/economia , China , Humanos , PercepçãoRESUMO
In Denmark, Finland, and Sweden, the Nordic Total Merit index is used as the breeding selection tool for both organic and conventional dairy farmers based on common economic models for conventional dairy farming. Organic farming is based on the principles of organic agriculture (POA) defined by the International Federation of Organic Agriculture Movements. These principles are not set up with an economic point of view, and therefore it may be questionable to use a breeding goal (BG) for organic dairy production based on economic models. In addition to economics and the principles of organic agriculture, it is important to look at farmers' preferences for improving BG traits when setting up a BG for organic farming. The aim of this research was to set up, simulate, and compare long-term effects of different BG for organic and conventional dairy production systems based on economic models, farmers' preferences, and POA, with particular emphasis on disease resistance or on roughage consumption and feed efficiency. The BG based on economic models and on farmers' preferences were taken from previous studies. The other BG were desired gains indices, set up by means of a questionnaire about relatedness between the POA and BG traits. Each BG was simulated in the stochastic simulation program ADAM. The BG based on POA, with particular emphasis on disease resistance or on roughage consumption and feed efficiency, caused favorable genetic gain in all 12 traits included in this study compared with 6 traits for the other BG. The BG based on POA, with particular emphasis on disease resistance or on roughage consumption and feed efficiency, were very different from BG for organic and conventional production based on economic models and farmers' preferences in both simulated genetic change and correlations between BG. The BG that was created based on the principles of organic agriculture could be used as a specific index for organic dairy farming in Denmark, but this index was economically not very sustainable. Hence, an intermediate breeding goal could be developed by breeding companies to address both economics and the principles of organic agriculture.
Assuntos
Cruzamento/normas , Bovinos/genética , Agricultura Orgânica/normas , Ração Animal/análise , Animais , Cruzamento/economia , Cruzamento/métodos , Bovinos/crescimento & desenvolvimento , Bovinos/metabolismo , Laticínios/análise , Laticínios/economia , Laticínios/normas , Dinamarca , Fibras na Dieta/metabolismo , Feminino , Finlândia , Masculino , Modelos Econômicos , Agricultura Orgânica/economia , Agricultura Orgânica/métodos , SuéciaRESUMO
INTRODUCTION: Every farming method, whether conventional or organic, has been associated with some sort of risky behaviors leading to health issues among farmers. Substantial evidence is not available in the literature to determine whether the magnitudes of health outcomes vary between conventional and organic farmers. The study investigated whether self-reported neurological and mental health symptoms differ between conventional and organic farmers living in Indiana, USA. MATERIAL AND METHODS: A self-reported questionnaire survey collected information from 200 conventional and 157 organic farmers of Indiana on demographic characteristics, depression and neurological symptoms. Statistical analyses were conducted to observe the differences in self-reported symptoms by groups of farmers. RESULTS: It was observed that the conventional farmers had significantly higher age-adjusted mean neurological symptom score (p<0.01) than the organic farmers. Regression models revealed positive and significant associations of conventional farming with total (ß =1.34; p=0.02), sensory (ß =0.83; p=0.001) and behavioural (ß =0.09; p=0.03) symptoms after accounting for age, income, education and years in farming. Positive but non-significant associations were also observed in conventional farmers with cognitive and motor symptoms, and with all subscales of depression symptoms in the adjusted models. CONCLUSIONS: The findings obtained suggest the importance of a larger study to further explain the difference in mental and neurological health effects in these two categories of farmers.
Assuntos
Transtorno Depressivo/psicologia , Fazendeiros/psicologia , Doenças do Sistema Nervoso/psicologia , Agricultura Orgânica , Adulto , Idoso , Transtorno Depressivo/economia , Humanos , Renda , Indiana , Masculino , Saúde Mental/economia , Pessoa de Meia-Idade , Doenças do Sistema Nervoso/economia , Agricultura Orgânica/economia , Recursos HumanosRESUMO
Organic agriculture (OA) is considered a strategy to make agriculture more sustainable. Bhutan has embraced the ambitious goal of becoming the world's first 100% organic nation. By analysing recent on-farm data in Bhutan, we found organic crop yields on average to be 24% lower than conventional yields. Based on these yield gaps, we assess the effects of the 100% organic conversion policy by employing an economy-wide computable general equilibrium (CGE) model with detailed representation of Bhutan's agricultural sector incorporating agroecological zones, crop nutrients, and field operations. Despite a low dependency on agrochemicals from the onset of this initiative, we find a considerable reduction in Bhutan's GDP, substantial welfare losses, particularly for non-agricultural households, and adverse impacts on food security. The yield gap is the main driver for a strong decline in domestic agricultural production, which is largely compensated by increased food imports, resulting in a weakening of the country's cereal self-sufficiency. Current organic by default farming practices in Bhutan are still underdeveloped and do not apply the systems approach of organic farming as defined in the IFOAM organic farming standards. This is reflected in the strong decline of nitrogen (N) availability to crops in our simulation and bears potential for increased yields in OA. Improvement of soil-fertility practices, e.g., the adoption of N-fixing crops, improved animal husbandry systems with increased provision of animal manure and access to markets with price premium for organic products could help to lower the economic cost of the large-scale conversion.
Assuntos
Produção Agrícola/economia , Agricultura Orgânica/economia , Butão , Abastecimento de Alimentos , Modelos Teóricos , Nitrogênio/metabolismo , Agricultura Orgânica/legislação & jurisprudência , Políticas , Solo/químicaRESUMO
A agricultura familiar rural tem ancorado as famílias produtoras de alimentos por meio do Programa de Aquisição de Alimentos e do Programa Nacional de Alimentação Escolar, com atenção a questão social, além de incentivar e facilitar o escoamento dessa produção. O objetivo desta pesquisa foi verificar o cumprimento da Lei nº 11.947/2009 e regulamentações no Programa Nacional de Alimentação Escolar (PNAE), analisando as características dos documentos publicados entre janeiro e julho de 2013. Foram localizados duzentos e um editais de chamada públicas pesquisados por meio eletrônico, com representação de todas as Regiões do País. Os resultados indicaram características não conformes à legislação vigente para a maioria das Entidades Executoras, com falhas na informação dada ao produtor familiar rural, principalmente quanto ao cronograma de entrega e indicação da prioridade na escolha do projeto de venda. Considerando os resultados, concluiu-se que grande parte dos gestores deixou de colocar em prática a Lei nº 11.947/2009 e regulamentações, com maior proporção de não conformidades nas regiões Centro Oeste, Nordeste e Norte, alertando para a necessidade de fiscalização rigorosa e efetiva às EEx. por parte dos órgãos fiscalizadores para o cumprimento da legislação vigente, assim como para uma melhor orientação aos produtores familiares rurais sobre esse assunto, evitando a continuidade de procedimentos não conformes.(AU)
Rural family agriculture has anchored the food producing families through the Food Acquisition Program and the National School Feeding Program, with attention to the social issue, besides encouraging and facilitating the disposal of this production. The objective of this research was to verify compliance with Law 11.947 / 2009 and regulations in the National School Feeding Program (PNAE), analyzing the characteristics of the documents published between January and July 2013. Two hundred and one public call notices were searched by electronic means, with representation from all Regions of the Country. The results indicated characteristics that do not conform to the legislation in force for most of the Executing Entities, with deficiencies in the information given to the rural family producer, mainly regarding the delivery schedule and indication of priority in the choice of the sales project. Considering the results, the conclusion is that most of the managers failed to put into practice Law 11.947 / 2009 and regulations, with a higher proportion of nonconformities in the Midwest, Northeast and North regions, alerting to the need for rigorous and effective supervision to the EEx. by the enforcement agencies to comply with current legislation, as well as to provide guidance to rural family farmers on the subject, avoiding the continuation of non-compliant procedures.
Assuntos
Humanos , Programas e Políticas de Nutrição e Alimentação , Alimentação Escolar , Proposta de Concorrência/organização & administração , Agricultura Orgânica/economia , Brasil , Zona Rural , Abastecimento de Alimentos/economia , Legislação sobre AlimentosRESUMO
BACKGROUND: This research focused on the effect of organic production systems on initial quality and postharvest performance of lamb's lettuce leaves stored in air or under modified atmosphere at refrigerated temperature. Different strategies of organic soil fertility management were compared under the same environmental conditions: (i) a simplified organic production system based on organic commercial fertilizers to recover crop uptake (SB); (ii) an organic production system based on organic matter amendment mainly supplied by animal manure (AM); and (iii) an organic production system based on organic matter amendment supplied by green waste compost (AC). Fully developed lamb's lettuce leaves were harvested and then packed into perforated bags (control in AIR) or in modified atmosphere packaging (MAP) and stored at 4 °C. RESULTS: At harvest, the yield of lamb's lettuce in the AM and AC systems was higher than that in SB. Phenol and dehydroascorbic acid accumulation was observed in the system with the lowest initial supply of organic amendment (SB). Regarding the effect of packaging, AIR conditions maintained the initial quality attributes for a longer period than MAP, which developed off-odours above the threshold of acceptability at 11 days, irrespective of the production system used. CONCLUSION: In general, the initial differences among the production systems were minimal during the postharvest storage. As for the tested packaging systems, AIR successfully maintained the initial quality attributes for a longer period than the MAP. © 2018 Society of Chemical Industry.
Assuntos
Embalagem de Alimentos/métodos , Lactuca/química , Agricultura Orgânica/métodos , Fertilizantes/análise , Embalagem de Alimentos/economia , Embalagem de Alimentos/instrumentação , Armazenamento de Alimentos , Lactuca/crescimento & desenvolvimento , Esterco/análise , Agricultura Orgânica/economia , Agricultura Orgânica/instrumentação , Folhas de Planta/química , Folhas de Planta/crescimento & desenvolvimentoRESUMO
Agricultural intensification drives biodiversity loss and shapes farmers' profit, but the role of legacy effects and detailed quantification of ecological-economic trade-offs are largely unknown. In Europe during the 1950s, the Eastern communist bloc switched to large-scale farming by forced collectivization of small farms, while the West kept small-scale private farming. Here we show that large-scale agriculture in East Germany reduced biodiversity, which has been maintained in West Germany due to >70% longer field edges than those in the East. In contrast, profit per farmland area in the East was 50% higher than that in the West, despite similar yield levels. In both regions, switching from conventional to organic farming increased biodiversity and halved yield levels, but doubled farmers' profits. In conclusion, European Union policy should acknowledge the surprisingly high biodiversity benefits of small-scale agriculture, which are on a par with conversion to organic agriculture.
Assuntos
Agricultura/métodos , Biodiversidade , Conservação dos Recursos Naturais , Agricultura/economia , Comunismo , Alemanha , Agricultura Orgânica/economiaRESUMO
BACKGROUND: Sustainable development requires learning, but the contents of learning are often complex and ambiguous. This requires new integrated approaches from research. It is argued that investigation of people's learning challenges in every-day work is beneficial for research on sustainable development. OBJECTIVE: The aim of the paper is to describe a research method for examining learning challenges in promoting sustainable development. This method is illustrated with a case example from organic vegetable farming in Finland. METHODS: The method, based on Activity Theory, combines historical analysis with qualitative analysis of need expressions in discourse data. RESULTS: The method linking local and subjective need expressions with general historical analysis is a promising way to overcome the gap between the individual and society, so much needed in research for sustainable development. CONCLUSIONS: Dialectically informed historical frameworks have practical value as tools in collaborative negotiations and participatory designs for sustainable development. The simultaneous use of systemic and subjective perspectives allows researchers to manage the complexity of practical work activities and to avoid too simplistic presumptions about sustainable development.
Assuntos
Conservação dos Recursos Naturais/métodos , Aprendizagem , Produção Agrícola/métodos , Finlândia , Humanos , Masculino , Agricultura Orgânica/economia , Agricultura Orgânica/métodos , VerdurasRESUMO
BACKGROUND: Environmental concerns about peat extraction in wetland ecosystems have increased. Therefore, there is an international effort to evaluate alternative organic substrates for the partial substitution of peat. The aim of this work was to use different composts (C1-C10) obtained from the fruit and vegetable processing industry (pepper, carrot, broccoli, orange, artichoke residues, sewage sludge (citric and pepper) and vineyard pruning wastes) to produce added-value composts as growing media with suppressive effect against Fusarium oxysporum f.sp. melonis (FOM) in muskmelon. RESULTS: Composts showed values of water-soluble carbon fractions and dehydrogenase activity that allowed them to be considered mature and stabilized. All compost treatments produced significantly (F = 7.382; P < 0.05) higher fresh shoot weight than peat, treatment T-C2 showing the highest values. Treatments T-C5, T-C7 and T-C8 showed percentages of disease incidence that were significantly (F = 16.052; P < 0.05) the lowest, relative to peat, followed by T-C6, T-C10, T-C1 and T-C9 with values below 50%. CONCLUSION: Composts produced are suitable components of mixed compost-peat growing media, providing a 50% substitution of peat. Furthermore, some of these composts also showed an added value as a suppressive organic medium against Fusarium wilt in muskmelon seedling, a fact probably related to high pH and pepper wastes and high content of pruning waste as initial raw materials. © 2016 Society of Chemical Industry.
Assuntos
Conservação dos Recursos Naturais , Produção Agrícola , Produtos Agrícolas/crescimento & desenvolvimento , Cucumis melo/crescimento & desenvolvimento , Resíduos Industriais/análise , Plântula/crescimento & desenvolvimento , Solo/química , Conservação dos Recursos Naturais/economia , Produção Agrícola/economia , Produtos Agrícolas/economia , Produtos Agrícolas/microbiologia , Cucumis melo/microbiologia , Condutividade Elétrica , Contaminação de Alimentos/economia , Contaminação de Alimentos/prevenção & controle , Manipulação de Alimentos , Frutas/química , Fungicidas Industriais/toxicidade , Fusarium/crescimento & desenvolvimento , Fusarium/isolamento & purificação , Germinação , Temperatura Alta , Concentração de Íons de Hidrogênio , Resíduos Industriais/economia , Agricultura Orgânica/economia , Oxirredutases/metabolismo , Plântula/microbiologia , Microbiologia do Solo , Espanha , Verduras/química , Áreas AlagadasRESUMO
BACKGROUND: The spotted wing drosophila (SWD), Drosophila suzukii (Matsumura), is an invasive vinegar fly with a preference for infesting commercially viable berries and stone fruits. SWD infestations can reduce yields significantly, necessitating additional management activities. This analysis estimates economic losses in the California raspberry industry that have resulted from the SWD invasion. RESULTS: California raspberry producers experienced considerable revenue losses and management costs in the first years following SWD's invasion of North America. Conventional producers have since developed effective chemical management programs, virtually eliminating revenue losses due to SWD and reducing the cost of management to that of purchasing and applying insecticides more often. Organic raspberry producers, who do not have access to the same chemical controls, continue to confront substantial SWD-related revenue losses. These losses can be mitigated only by applying expensive insecticides registered for organic use and by performing labor-intensive field sanitation. CONCLUSION: SWD's invasion into North America has caused extensive crop losses to berry and cherry crops in California and elsewhere. Agricultural producers and researchers have responded quickly to this pest by developing management programs that significantly reduce revenue losses. Economic losses are expected to continue to fall as producers learn to manage SWD more efficiently and as new control tactics become available. © 2016 Society of Chemical Industry.
Assuntos
Produtos Agrícolas/economia , Drosophila , Controle de Insetos/economia , Rubus/parasitologia , Animais , California , Controle de Insetos/métodos , Inseticidas/economia , Agricultura Orgânica/economia , Agricultura Orgânica/métodosRESUMO
Organic agriculture has developed rapidly in China since the 1990s, driven by the increasing domestic and international demand for organic products. Quantification of the environmental benefits and production performances of organic agriculture on a national scale helps to develop sustainable high yielding agricultural production systems with minimum impacts on the environment. Data of organic production for 2013 were obtained from a national survey organized by the Certification and Accreditation Administration of China. Farming performance and environmental impact indicators were screened and indicator values were defined based on an intensive literature review and were validated by national statistics. The economic (monetary) values of farming inputs, crop production and individual environmental benefits were then quantified and integrated to compare the overall performances of organic vs. conventional agriculture. In 2013, organically managed farmland accounted for approximately 0.97% of national arable land, covering 1.158 million ha. If organic crop yields were assumed to be 10%-15% lower than conventional yields, the environmental benefits of organic agriculture (i.e., a decrease in nitrate leaching, an increase in farmland biodiversity, an increase in carbon sequestration and a decrease in greenhouse gas emissions) were valued at 1921 million RMB (320.2 million USD), or 1659 RMB (276.5 USD) per ha. By reducing the farming inputs, the costs saved was 3110 million RMB (518.3 million USD), or 2686 RMB (447.7 USD) per ha. The economic loss associated with the decrease in crop yields from organic agriculture was valued at 6115 million RMB (1019.2 million USD), or 5280 RMB (880 USD) per ha. Although they were likely underestimated because of the complex relationships among farming operations, ecosystems and humans, the production costs saved and environmental benefits of organic agriculture that were quantified in our study compensated substantially for the economic losses associated with the decrease in crop production. This suggests that payment for the environmental benefits of organic agriculture should be incorporated into public policies. Most of the environmental impacts of organic farming were related to N fluxes within agroecosystems, which is a call for the better management of N fertilizer in regions or countries with low levels of N-use efficiency. Issues such as higher external inputs and lack of integration cropping with animal husbandry should be addressed during the quantification of change of conventional to organic agriculture, and the quantification of this change is challenging.
Assuntos
Meio Ambiente , Agricultura Orgânica/economia , Agricultura Orgânica/estatística & dados numéricos , Criação de Animais Domésticos , Animais , Biodiversidade , China , Custos e Análise de Custo , Produtos Agrícolas/economia , Ecossistema , Fertilizantes/análise , Efeito Estufa , Humanos , Nitratos/análise , Nitrogênio , Poluentes do Solo/análiseRESUMO
Organic agriculture has a history of being contentious and is considered by some as an inefficient approach to food production. Yet organic foods and beverages are a rapidly growing market segment in the global food industry. Here, we examine the performance of organic farming in light of four key sustainability metrics: productivity, environmental impact, economic viability and social wellbeing. Organic farming systems produce lower yields compared with conventional agriculture. However, they are more profitable and environmentally friendly, and deliver equally or more nutritious foods that contain less (or no) pesticide residues, compared with conventional farming. Moreover, initial evidence indicates that organic agricultural systems deliver greater ecosystem services and social benefits. Although organic agriculture has an untapped role to play when it comes to the establishment of sustainable farming systems, no single approach will safely feed the planet. Rather, a blend of organic and other innovative farming systems is needed. Significant barriers exist to adopting these systems, however, and a diversity of policy instruments will be required to facilitate their development and implementation.
Assuntos
Agricultura Orgânica , Animais , Abastecimento de Alimentos , Humanos , Agricultura Orgânica/economia , Agricultura Orgânica/métodos , Agricultura Orgânica/organização & administração , Agricultura Orgânica/estatística & dados numéricosRESUMO
Although the globalised food system delivers unparalleled food variety and quantity to most in the developed world it also disconnects consumers from where, how and by whom food is grown. This change in the food system has resulted in an acceptance of an anonymous and homogeneous food supply, which has contributed to over-consumption and the rise in diet-related diseases. 'Nutritionism' responds to this issue by maintaining that a 'healthy diet' can be achieved by consuming the correct balance of energy and nutrients, but with limited success. Yet, some food cultures can moderate the effects of the environmental drivers of increasing global obesity rates. This paper draws on this premise and presents an alternative eco-dietetic response, exploring people's meaning-making of food and food culture through local food networks. This research used narrative inquiry methodology and purposive sampling to gather stories through focus group conversations. Twenty people attended focus groups comprised of food procurers from one of three local food networks in the Canberra region: community gardens, a modified Community Supported Agriculture (CSA) and farmers' markets. The findings showed that those using local food networks enjoyed a 'contemporary relational food culture' that highlighted the importance of people, place and time, in their visceral experiences of food. The community gardeners made meaning of food through their connections to the earth and to others. The farmers' market and CSA food procurers valued the seasonal, local and ethical food produced by their beloved farmer(s). This paper provides qualitative evidence that local food networks enable people to enjoy multi-dimensional relationships to food. Further research is required to examine whether experiencing a contemporary relational food culture can lead to improved health outcomes for people and the planet.