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

Klonsky, Karen; Greene, Catherine R..

Organic food production has rapidly growing consumer demand in the U.S. and other industrialized countries, along with a worldwide regulatory framework and rapidly developing support infrastructure, making it a premier technology in the efforts of many public and private organizations that advocate more sustainable farming practices. The use of organic farming systems for crop production in the U.S. has grown rapidly during the last decade, but is still under 0.5 percent of total U.S. farmland-substantially less than in many countries in Europe and elsewhere. Within the U.S., conversion to organic farming systems has been more extensive in particular commodity sectors and regions. In California, for example, about two percent of the state's crop...

Adopting Organic Agriculture: An Investigation Using the Theory of Planned Behaviour

Palavras-chave: Organic agriculture; Farm policy; Consumer demand; Marketing.

Ano: 2005

URL: http://purl.umn.edu/19382

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.

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

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

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...

WELFARE EFFECTS OF ECO-LABEL PROLIFERATION: TOO MUCH OF A GOOD THING?

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

Ano: 2011

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

Potential income gains for rural households in North Eastern Thailand through trade with organic products

Lohr, Luanne.

Given that existing food eco-labels are still not well defined in consumers' experience, there is potential for new labels to generate more confusion. Consumers incur fixed costs to learn about a label's meaning. Market shares for existing certifications may be eroded by perceptions that new products are good substitutes for them. The eco-label certifier must respond with information that reduces these costs or lose consumer and producer confidence in the label. Using a model of spatial competition in attribute space, the effect of search costs and educational expenditures on market share and price for competing certifiers is simulated. The results show that educational spending and/or improvements in efficiency of educational spending increase market...

Tipo: Working or Discussion Paper

Palavras-chave: Eco-labeling; Market segmentation; Organic agriculture; Product differentiation; Search costs; Simulation; Spatial competition; Environmental Economics and Policy; Marketing.

Ano: 1998

URL: http://purl.umn.edu/16642

Morawetz, Ulrich B.; Wongprawmas, Rungsaran; Haas, Rainer.

The study groups households in North Eastern Thailand according their income and grade of specialisation in crop production to derive representative household types. For these household types a linear optimization model is run to calculate net incomes under four scenarios. These are certified organic farming, organic farming in the initial and transitional phase and a self-sufficient farming. Simulations for the different management scenarios show that per ha cash profits are about double under certification while they can only be increased by 30 percent under self-sufficient farming, even under favourable assumptions. But transition costs to organic farming are high due to reduced yields at the beginning. According to the figures and model used, only...

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

Palavras-chave: Organic agriculture; Thailand; Household income; Consumer/Household Economics; International Relations/Trade.

Ano: 2007

URL: http://purl.umn.edu/7895

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.

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

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

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...

Sustainable Management of Resource Consumption Agriculture - Enlightenment from Organic Agriculture of Japan

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

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

Luo, Fang; Xu, Dan.

Based on the content of organic agriculture, sustainable management of agriculture in Japan is analyzed from four aspects. Firstly, organization and management institutions and relevant laws and regulations of organic agriculture in Japan are introduced. Secondly, certification procedure of organic agricultural products is briefly described, that is, determining production plan, reorganizing cultivation and management records, making certification application, on-site inspection, offering certification, and professional work after certification. Thirdly, management of organic agriculture in Japan is analyzed; and the six principal forms of organic agriculture in Japan are summarized. The four basic characteristics of agricultural product circulation and...

Tipo: Journal Article

Palavras-chave: Japan; Organic agriculture; Sustainability; China; Agribusiness.

Ano: 2009

URL: http://purl.umn.edu/93454

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...

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

Palavras-chave: Choline; DL-methionine 99%; Organic agriculture; Organic broiler.

Ano: 2015

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400489

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...

Sprinkler and drip irrigation in the organic tomato for single crops and when intercropped with coriander

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

Rev. Ciênc. Agron.

Marouelli,Waldir Aparecido; Lage,Daniel Anacleto da Costa; Gravina,Cristina Silveira; Michereff Filho,Miguel; Souza,Ronessa Bartolomeu de.

The objective of this study was to evaluate the influence of both sprinkler and drip irrigation systems on the organic production of the tomato, cultivar Duradouro, when cultivated both as a single crop and intercropped with coriander. The experiment was carried out in the Distrito Federal, Brazil, using a randomized block design with six replications and a 2 x 2 factorial arrangement for the treatments. There was no significant interaction between the factors of irrigation system and cropping system. The productivity and mass of the tomato fruits were not affected by the treatments, but for the coriander, productivity was higher under the sprinkler system. Drip irrigation hindered the development of late blight (Phytophthora infestans) and reduced the...

Economic evaluation of cereal cropping systems under semiarid conditions: minimum input, organic and conventional

Palavras-chave: Solanum lycopersicum L; Coriandrum sativum L; Organic agriculture; Market tomato; Irrigation systems.

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000400020

Scientia Agricola

Pardo,Gabriel; Aibar,Joaquín; Cavero,José; Zaragoza,Carlos.

Cropping systems like organic farming, selling products at a higher price and promoting environmental sustainability by reducing fertilizer and pesticides, can be more profitable than conventional systems. An economic evaluation of three cropping systems in a seven year period experiment was performed, using a common rotation (fallow-barley-vetch-durum wheat) in a semi-arid rainfed field of Spain. The minimum input system included mouldboard ploughing, cultivator preparation, sowing and harvest. The conventional system involved mineral fertilizer and herbicide treatments, while the organic system involved composted manure and mechanical weed control. The resulting economic margins were highest with the minimum input system, followed by the organic and...

Soil organisms in organic and conventional cropping systems

Palavras-chave: Profitability; Organic agriculture; Crop rotation.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000500005

Scientia Agricola

Bettiol,Wagner; Ghini,Raquel; Galvão,José Abrahão Haddad; Ligo,Marcos Antônio Vieira; Mineiro,Jeferson Luiz de Carvalho.

Despite the recent interest in organic agriculture, little research has been carried out in this area. Thus, the objective of this study was to compare, in a dystrophic Ultisol, the effects of organic and conventional agricultures on soil organism populations, for the tomato (Lycopersicum esculentum) and corn (Zea mays) crops. In general, it was found that fungus, bacterium and actinomycet populations counted by the number of colonies in the media, were similar for the two cropping systems. CO2 evolution during the cropping season was higher, up to the double for the organic agriculture system as compared to the conventional. The number of earthworms was about ten times higher in the organic system. There was no difference in the decomposition rate of...

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

Palavras-chave: Soil microorganisms; Organic agriculture; Microartropods; Cropping systems; Environmental impacts.

Ano: 2002

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000300023

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...

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

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

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

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

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...

Organic cherry tomato yield and quality as affect by intercropping green manure

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

Agronomy

Ambrosano, Edmilson José; Salgado, Gabriela Cristina; Otsuk, Ivani Pozar; Prati, Patrícia; Henrique, Celina Maria; Melo, Paulo César Tavares de.

The aim of the study was to determine the yield and quality parameters of organic cherry tomatoes cultivated by intercropping with green manure in two successive years. The experimental design was a randomized block with eight treatments and five replicates as follows: two controls with single cherry tomato crop, one with straw addition and the other without corn straw as a cover crop; cherry tomato intercropped with jack bean (Canavalia ensiformis DC); tomato intercropped with white lupine (Lupinus albus L.); tomato intercropped with sun hemp (Crotalaria juncea L.); tomato intercropped with velvet bean-dwarf [Mucuna deeringiana (Bort) Merrill]; tomato intercropped with mung bean [Vigna radiata (L.) Wilczek]; and tomato intercropped with cowpea [Vigna...

Growth and production of tomato fertilized with ash and castor cake and under varying water depths, cultivated in organic potponics

Palavras-chave: Organic agriculture; Solanum lycopersicum; Production; Intercropping.; Manejo e tratos culturais.

Ano: 2018

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/36530

Agronomy

Gomes, Daniela Pinto; Carvalho, Daniel Fonseca de; Pinto, Marinaldo Ferreira; Valença, David da Cunha; Medici, Leonardo Oliveira.

Two experiments were performed to evaluate the effect of ash (40, 80, and 120 g per plant), castor cake (140 and 280 g per plant) and water depth (135, 165, 191, and 213 mm) on the growth and production of organic tomato cultivated in pots in a greenhouse. The experimental design was randomized blocks, and the irrigation was managed using an automatic irrigation device. The following variables were evaluated: plant heights, numbers of leaves, bunches, flowers and fruits, total mass of fruits, mass of marketable fruits, mass of fruits with blossom-end rot, total diameter of fruits, and diameter of marketable fruits. Most of the growth variables showed gains with the application of 140 g of ash and 280 g of cake. The dose of 280 g of castor cake was...

Isolation and prospection of diazotrophic rhizobacteria associated with sugarcane under organic management

Palavras-chave: 5.03.02.01-9 Solanum lycopersicum L.; Organic agriculture; Water management. Irrigação e Drenagem.

Ano: 2017

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32547

Anais da ABC (AABC)

RODRIGUES,ARIANA A.; ARAÚJO,MARCUS VINÍCIUS F.; SOARES,RENAN S.; OLIVEIRA,BRUNO F.R. DE; RIBEIRO,IGOR D.A.; SIBOV,SERGIO T.; VIEIRA,JOSÉ DANIEL G..

Abstract Microorganisms associated with organic management are essential in nutrient transformation and release for plant use. The present study aimed to isolate, identify and characterize plant growth promoting diazotrophic rhizobacteria associated with sugarcane under organic management. Rhizospheres of organic sugarcane varieties IAC 911099 and CTC4 were sampled and inoculated onto nitrogen free NFb and Burk media. The isolated microorganisms were screened in vitro concerning their ability to produce plant growth promoting factors. Eighty-one bacteria were isolated; 45.6% were positive for the nifH gene and produced at least one of the evaluated plant growth promotion factors. The production of indole-3-acetic acid was observed in 46% of the isolates,...