SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Hattam, Caroline.

Certified organic production by small-scale farmers in developing countries is increasingly promoted as an opportunity to access a growing and dynamic market, while at the same time, enhance productivity and improve incomes. Nevertheless, adoption has been limited. The economics literature suggests profitability is the main constraint, however, the sustainable agriculture literature is inconclusive and considers attitudes of significant importance. Using the Theory of Planned Behaviour, this study investigates the psychological barriers to adoption using small-scale avocado producers from Michoacan, Mexico as a case study. The data is obtained from a household study carried out during 2004 and is modelled using an ordered probit model. Despite positive...

Agricultural Environmental Indicators: Using OECD Agri-Environmental Indicators to Assess New Zealand Kiwifruit Orchards

Palavras-chave: Organic agriculture; Theory of planned behaviour; Entry barriers; O13; Production Economics; Q12; D8.

Ano: 2006

URL: http://purl.umn.edu/25269

Saunders, Caroline M.; Kaye-Blake, William; Campbell, Rachel; Benge, J..

Agri-environmental indicators (AEIs) developed by the OECD have been used to assess the environmental performance of the agricultural sector in developed countries. The Agricultural Research Group on Sustainability (ARGOS) in New Zealand has investigated using these AEIs to assess the performance of individual kiwifruit orchards. ARGOS is following panels of orchards to investigate the impacts of organic and conventional management systems on economic, sociological, and environmental dimensions of farming. The environmental monitoring of these orchards has provided data for calculating AEIs. The paper discusses the performance of ARGOS orchards, the impact of management systems, and the implications for future research.

Agricultural Resources and Environmental Indicators, 2006 Edition

Palavras-chave: Agri-environmental indicators; Kiwifruit; Organic agriculture; Sustainability; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Land Economics/Use.

Ano: 2009

URL: http://purl.umn.edu/97163

Wiebe, Keith D.; Gollehon, Noel R..

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Tipo: Report

Palavras-chave: ERS; AREI; Agricultural economics; Natural resources; Land; Land use; Land values; Land ownership; Water use; Irrigation; Water quality; Genetic resources; Biotechnology; Agricultural research; Agricultural productivity; Global resources; Soil conservation; Soil erosion; Pest management; Nutrient management; Animal agriculture; Organic agriculture; Conventional agriculture; Conservation policy; Land retirement; Working lands; Wetlands; Farmland protection; Environmental quality; Farm structure; Farm ownership; Farm management decisions; Farm business; Environmental Economics and Policy; Resource /Energy Economics and Policy.

Ano: 2006

URL: http://purl.umn.edu/7207

Agroecological knowledge construction in the semi-arid region of Ceará

ExtensaoRural

Pinheiro, Bruna Carolina Frazão Silva; Gamarra-Rojas, Guillermo; Mattos, Jorge Luiz Schirmer de; Lima, Filipe Augusto Xavier; Fernandes, Luis Eduardo Sobral.

The National Policy for Technical Assistance and Rural Extension (PNATER) represents the resumption of strengthening family farming and meeting society's demands for sustainable agriculture. Its materialization translates into the transition from conventional agriculture to ecologically based agriculture, based on participatory methodologies and under a multidisciplinary and systemic approach toRural Extension. The article presents an analysis of the perceptions of the social actors of organic and agroecological agriculture in the semi-arid region of Ceará on the process of building agroecological knowledge. To this end, we performed a content analysis of interviews, using the Ecological Knowledge System (SCE) and the objectives of PNATER as benchmarks....

Allelopathic effects of orange (Citrus sinensis L.) peel essential oil

Palavras-chave: Agroecology; Knowledge systems; Organic agriculture; Rural extension; Agroecología; Extensión Rural; Sistemas de Conocimiento; Agricultura orgânica; Agroecologia; Extensão rural; Sistemas de conhecimento.

Ano: 2023

URL: http://periodicos.ufsm.br/extensaorural/article/view/70414

Acta Botanica

Ribeiro,Jose Pedro Nepomuceno; Lima,Maria Inês Salgueiro.

Crop weeds are the main problem in agriculture, causing a worldwide annual loss of about US$95 billion. The principal method for control is the use of synthetic herbicides. The continued use of these products increases crop costs, reduces crop quality, and leaves toxic residues in the environment, which are a threat to human and livestock health. Therefore, there is a demand for environmentally friendly methods of weed control. The use of allelopathic compounds from crop residues is an alternative. Orange is one of the biggest crops in the world, and its cultivation generates large amounts of residues. There is strong evidence of bioactivity in orange peel essential oil. Therefore, the objective in this work was to verify the allelopathic proprieties of...

Assessing agricultural policy incentives for Greek organic agriculture: A Real options approach

Palavras-chave: Allelopathy; Crop residues; Limonene; Organic agriculture; Weeds; Weed controly.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062012000100025

Tzouramani, Irene; Sintori, Alexandra; Liontakis, Angelos E.; Alexopoulos, George.

The adoption of organic agriculture or livestock involves risk and uncertainty, and to overcome this, well designed schemes are required. Are the current support measures attractive for farmers who wish to convert to organic? At first, this study tries to assess the optimal investment trigger for a new comer into organic dairy sheep farming system and secondly, to evaluate the investment profitability of an existing organic farmer in his attempt to improve his farm. Results indicate that the framework of real options analysis is an appropriate form of analysis if the question of investment profitability is examined under risk and uncertainty and the role of economic subsidies offered to organic farmers is assessed.

Bioactivity of aqueous extracts of Clibadium sylvestre (Aubl.) Baill. and Derris amazonica Killip on the aphid Myzus persicae (Sulzer, 1776) (Hemiptera: Aphididae)

Palavras-chave: Organic agriculture; Dairy sheep farming; Real options; Agriculture policy; Agricultural and Food Policy; Farm Management; Land Economics/Use.

Ano: 2010

URL: http://purl.umn.edu/61096

Ciência e Agrotecnologia

Filgueiras,Camila Cramer; Farias,Paulo Roberto Silva; Cardoso,Maria das Graças; Vendramim,José Djair; Ramos,Edson Marcos Leal Soares; Cantão,Fernando Rodrigo de Oliveira.

Studies with botanical insecticides have become more popular as an alternative to Integrated Pest Management. The purpose of this study was to evaluate the effect of leaf and fruit aqueous extracts, from the species Clibadium sylvestre, and leaves and root of Derris amazonica species at concentrations of 0, 1, 2, 4 and 8%, in the control of the aphid Myzus persicae (Hemiptera: Aphididae). Four experiments were conducted; two tests with choice preference and two tests with no choice preference, giving nine treatments and five repetitions. Phytochemical screening was carried out from the leaves and fruit of the species C. sylvestre and leaves and root of D. amazonica. Evaluations of mortality, number of nymphs, and deterrence index of the insects were...

BIOFERTILIZATION WITH CHLOROPHYTA AND CYANOPHYTA: AN ALTERNATIVE FOR ORGANIC FOOD PRODUCTION

Palavras-chave: Organic agriculture; Botanical insecticides; Cunaniol; Rotenone.

Ano: 2011

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600004

Acta biol.Colomb.

ORTIZ-MORENO,Martha Lucía; SOLARTE-MURlLLO,Laura Vanessa; SANDOVAL-PARRA,Karen Ximena.

ABSTRACT Chlorophyta and Cyanophyta are photosynthetic organisms characterized by their biochemical plasticity, which has allowed them to develop in different environments and have a faster growth rate than plants. Depending on the species and environmental conditions, these organisms can produce nitrogenous enzymes, for atmospheric nitrogen fixation; phosphatases, that solubilize phosphorus; phytohormones, that promote plant growth; and hygroscopic polysaccharides, that prevent erosion and improve soil characteristics. In this sense, the aim of this review was to analyze the available information on the use of Chlorophyta and Cyanophyta as biofertilizers and their potential application in organic food production. Multiple studies and researches were found...

URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200303

Palavras-chave: Biofertilizers; Cyanobacteria; Green algae; Organic agriculture.

Ano: 2020

BUSH SNAP BEAN GENOTYPES UNDER CONVENTIONAL AND ORGANIC CULTIVATION

196

Vidal, Valdivina Lúcia; Assunção , Aracelle; Coelho, Marcos; Nascimento Sales, Raimunda; Peixoto, Nei.

Snap bean is a species widely cultivated in Goiás, in which cultivars of indeterminate growth are used in a staking system. Considering the high cost of staking and the unavailability of a workforce, there has been a demand for bush cultivars, but little is available on the market. In this sense, the present study was developed to evaluate, in 2016, under the conventional and organic cultivation systems, in Anápolis-GO, the behavior of 20 bush snap bean genotypes. The experimental design was randomized blocks, with 20 treatments and three replications. There was a significant interaction between genotypes and cultivation systems for vigor, average pod mass, number of pods per plant, and pod yield, evidencing that the types of cultivation, organic and...

Calibration and validation of models for short-term decomposition and N mineralization of plant residues in the tropics

Palavras-chave: Phaseolus vulgaris L.; Production system; Organic agriculture; Phaseolus vulgaris L.; Sistema de produção; Agricultura orgânica.

Ano: 2022

URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6827

Scientia Agricola

Nascimento,Alexandre Ferreira do; Mendonça,Eduardo de Sá; Leite,Luiz Fernando Carvalho; Scholberg,Johannes; Neves,Julio Cesar Lima.

Insight of nutrient release patterns associated with the decomposition of plant residues is important for their effective use as a green manure in food production systems. Thus, this study aimed to evaluate the ability of the Century, APSIM and NDICEA simulation models for predicting the decomposition and N mineralization of crop residues in the tropical Atlantic forest biome, Brazil. The simulation models were calibrated based on actual decomposition and N mineralization rates of three types of crop residues with different chemical and biochemical composition. The models were also validated for different pedo-climatic conditions and crop residues conditions. In general, the accuracy of decomposition and N mineralization improved after calibration. Overall...

Carrot yield and water-use efficiency under different mulching, organic fertilization and irrigation levels

Palavras-chave: Modeling; Nutrient cycling; Organic agriculture; Soil organic matter.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000600008

AGRIAMBI

Carvalho,Daniel F. de; Gomes,Daniela P.; Oliveira Neto,Dionizio H. de; Guerra,José G. M.; Rouws,Janaína R. C.; Oliveira,Fábio L. de.

ABSTRACT This study was carried out to evaluate the contributions to the optimization of water use in a carrot crop under different forms of mulch using Gliricidia sepium, fertilization with castor bean cakes and irrigation water depths. The experiment was conducted in Seropédica, RJ, Brazil (22º 46’ S and 43º 41’ W), from June to September 2010. The experiment was conducted using a split-split-plot scheme (5 x 3 x 2), with four replicates. The five plots had irrigation depths corresponding to 0, 43, 72, 100 and 120% of crop evapotranspiration (ETc); the three subplots contained the different forms of mulch (whole leaves (WL) and chopped leaves and branches (CLB)) and the absence of mulch (AM); and the two sub-subplots contained either the presence (PF) or...

Chicory yield influenced by seedling quality and growing environment

Palavras-chave: Irrigation management; Gliricidia sepium; Castor bean cake; Daucus carota L.; Organic agriculture.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000700445

Horticultura Brasileira

Souza,Luís Gustavo de S e; Ferreira,Regina Lúcia F; Araújo Neto,Sebastião Elviro de; Silva,Nilciléia M da; Uchôa,Thays L; Almeida,Waldiane A de.

ABSTRACT The objective of this work was to evaluate the quality of chicory seedlings in organic substrata and their influence on yield and commercial yield in a protected environment and under direct sunlight. Seedling and field production experiments were conducted in a randomized block design with four blocks. In the first experiment, seedlings were produced on substrata by alternating the conditioner: 1) dry coconut fiber + blend (soil, organic compost, charcoal); 2) carbonized rice husk + blend; 3) crushed ouricuri stem + blend; 4) decomposed kapok stem + blend and 5) commercial substratum. Sufficient seedlings were produced for the evaluations and transplantation. In the field phase, two experiments were evaluated, one in a protected environment and...

COMERCIALIZAÇÃO DE PRODUTOS AGRÍCOLAS ORGÂNICOS COMO FATOR DE INCLUSÃO SOCIAL E ECONÔMICA

Palavras-chave: Eryngium foetidum; Organic agriculture; Alternative substratum; Protected cultivation; Organic residues.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200224

Silva, Ana Maria Navaes Da; Albuquerque, Jose de Lima; Santos Filho, Demorval Dos; Silva, Elizandro Souza Da; Nascimento, Renata Patricia Leandro Do.

Este artigo analisa o processo de implantação da agricultura orgânica em assentamentos de reforma agrária, ainda recente no Brasil, e que trouxe consigo uma rápida transformação para a agricultura familiar. Procura analisar a contribuição da agricultura orgânica como alternativa de sustentabilidade sócio- econômica e ambiental da produção e entender o processo de reforma agrária brasileira e suas dificuldades, mostrando os possíveis caminhos para o agricultor assentado agregar valor à produção e se inserir em uma economia de mercado. Além do que, analisa os impactos identificados na elevação da renda familiar e melhoria nas condições de vida. Procurou-se analisar o caso do assentamento Ronda/Chico Mendes, no município de Pombos, em Pernambuco. A pesquisa...

COMPETITIVE ADVANTAGES OF POLISH ORGANIC SECTOR IN LIGHT OF CO-EXISTANCE BETWEEN GMO AND NON-GM PRODUCTS

Palavras-chave: Pequena agricultura familiar; Reforma agrária; Assentamentos e agricultura orgânica; Small agriculture; Agrarian reform; Nesting; Organic agriculture; Farm Management.

Ano: 2008

URL: http://purl.umn.edu/109598

CONSUMER WILLINGNESS TO PAY FOR MULTIPLE ATTRIBUTES OF ORGANIC RICE: A CASE STUDY IN THE PHILIPPINES

Maciejczak, Mariusz.

The perfect segregation of the different agricultural production types, namely conventional, organic or based on genetically modified organisms is not possible in practice. But the side by side functioning of this systems in agricultural production and further on of the products on the shelves requires suitable measures during cultivation, harvest, transport, storage, and processing to ensure co-existence. Consumers, food and feed industry, as well as wholesalers and retailers in European Union, including Polish ones demand a reasonable degree of choice between GMO and non-GMO derived products. Accordingly the ability to maintain different agricultural production and processing systems is a pre-requisite for providing a high degree of consumer choice. As...

Tipo: Journal Article

Palavras-chave: Organic agriculture; Competitive advantage; Coexistance; GMO; Agricultural and Food Policy; Environmental Economics and Policy; Farm Management.

Ano: 2007

URL: http://purl.umn.edu/58905

Ara, Shihomi.

Organic rice production in the Philippines has been growing rapidly since 1986. We conducted a conjoint analysis to determine consumers' preferences of multiple attributes of organic rice in Manila and Naga city. Attributes included were price, reduced health risk level, environmental quality, eating quality, type of organic certification and a fair trade factor. In both cities, health risk was the primary concern. Consumers in Manila revealed organic certification to be the second most important factor while improvement of the farm environment was the second highest factor in Naga city. We found that consumers who live further from the production site have a higher demand for certification. On the other hand, consumers who live close to farms care more...

CONVERSION SUBSIDIES FOR ORGANIC PRODUCTION: RESULTS FROM SWEDEN AND LESSONS FOR THE UNITED STATES

Palavras-chave: Organic agriculture; Food safety; Risk perception; Conjoint analysis; Willingness to pay; Crop Production/Industries; Food Consumption/Nutrition/Food Safety.

Ano: 2003

URL: http://purl.umn.edu/25911

Lohr, Luanne; Salomonsson, Lennart.

Environmental and social justifications for organic conversion subsidies are as pervasive in the United States as in Europe, but national policy does not explicitly support organic agriculture. Using Sweden's experience, we analyze factors that affect whether a subsidy is required to motivate organic conversion. We use a utility difference model to compare farmers who converted before and after the subsidy. Significant factors in conversion without subsidies are greater livestock diversity and more sales outlets. Farmers requiring subsidies manage larger farms, are more concerned with organic inspection quality and adequacy of technical advice, and reside in areas with more organic farms. Results suggest that a subsidy induces mainly those already...

Tipo: Working or Discussion Paper

Palavras-chave: Organic agriculture; Utility difference model; Public policy; Agricultural and Food Policy; Production Economics.

Ano: 1998

URL: http://purl.umn.edu/16640

Dairy Policy for New England: Options at the State and Regional Level

Demand for Organic Food: Focus Group Discussions in Armidale, NSW

Cotterill, Ronald W..

Tipo: Working or Discussion Paper

Palavras-chave: Organic agriculture; Organic certification standards; Organic labeling; Organic market; Agricultural and Food Policy; Livestock Production/Industries.

Ano: 2003

URL: http://purl.umn.edu/25176

Zepeda, Lydia; Chang, Hui-Shung (Christie).

In Australia, the retail value of organic food production was estimated at A$250 million, with farm gate value at around A$90 million, and exports at around A$40 million. The current share of organic sales in total food sales in Australia is about 1 per cent. The growth rate in organic production was forecast to continue at 10-30% per annum. Despite the positive outlook, there are concerns about consumer confusion over product recognition, organic certification, and misleading advertising. To understand how demand for organic products is changing, it is important to investigate consumer attitudes and knowledge about these issues. The objective of this study is to identify issues that may hinder or promote demand. Given the qualitative nature of these...

Tipo: Working or Discussion Paper

Palavras-chave: Organic agriculture; Consumer perceptions; Organic certification; Focus group; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.

Ano: 2004

URL: http://purl.umn.edu/12926

Determinants of the Adaption of Organic Agriculture in Egypt Using a Duration Analysis Technique

Radwan, Amr; Gil, Jose Maria; Diab, Yaser A.A.; Abo-Nahoul, Mohamed A..

A very important pillar of the modernization of the Egyptian agriculture depends upon the exportation of the high value added products such as organic products. In spite of the importance of the organic agriculture within the Egyptian agriculture sector and up to our knowledge, it does not exist in Egypt until now any study that try to determine and analyze the determinant factors of the adaption of the organic agriculture within the Egyptian farms. In this study, we focus on this issue. A survey with a representative sample of organic and non-organic farms in Upper Egypt area was carried out. Using obtained data set we apply duration analysis techniques to assess the effect of different explanatory variables on both the adoption of organic agriculture...

Dietary Supplementation of Alternative Methionine and Choline Sources in the Organic Broiler Production in Brazil

Palavras-chave: Organic agriculture; Duration analysis; Egypt; Research Methods/ Statistical Methods; C41; Q1.

Ano: 2011

URL: http://purl.umn.edu/108961

Rev. Bras. Ciênc. Avic.

Demattê Filho,LC; Pereira DC de,O; Possamai,E.

ABSTRACT The objective of this study was to evaluate the use of natural and alternative sources of methionine and choline which can be allowed to use in organic livestock systems to feed broilers produced in Brazil. Seven hundred and twenty one-d-old male Cobb broilers were randomly allocated to four treatments with six replicates of 24 birds each. The treatments consisted in substituting the commonly used DL-methionine 99% by a vegetable source of methionine and cholinechloride 60% by alternative source of choline in the form of phosphatidylcholine. The following treatments were evaluated: I) feed with DL-methionine 99% and choline chloride 60%, II) feed with an vegetable methionine source and choline chloride 60%, III) feed with DL-methionine 99% and...