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A geographic information system for mapping apple quality. Repositório Alice
LONGO, D.; BAZZI, L. C.; SOUZA, G. E.; GEBLER, L.; MAGALHÃES, G. S. P..
Technologies related to precision agriculture (AP) have contributed to the development of decision support systems. In this work a tool is presented that allows mapping apple quality indexes georeferenced to transform them into a graphic variable that serves as support for orchard management. The system was developed in Java language, with PostgreSQL database and geographical extension PostGIS. The system has been named "Apple Show" and can analyzed the production areas, mark the points, classify and interpolate them, presenting the results in the form of maps.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Decision support system; Geographic Information System; Precision agriculture.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102323
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An in situ incubation technique to measure the contribution of organic N to potatoes IPB - Escola Superior Agrária
Rodrigues, M.A..
The quantification of sidedress N rate from in-season information on crop N nutritional status is extremely important in order to use only the necessary amount of nutrient to achieve maximum yields without significant N losses from soil. During three consecutive years (1996, 1997 and 1998) field N fertilizer experiments with irrigated potato (Solanum tuberosum L., cv. Désirée) were conducted in Bragança (NE Portugal). Eight preplant treatments (0, 50, 100, 200 and 300 kg urea-N/ha and poultry manure, farmyard manure and municipal solid waste in rates equivalent to 100 kg organic-N/ha) were arranged as main plots and five sidedress N rates (0, 25, 50, 100 and 200 kg urea-N/ha) included as subplots. Petiole nitrate concentration, determined by a laboratory...
Tipo: Article Palavras-chave: Solanum tuberosum; Crop N management; Decision support system; Plant analysis; Tissue testing.
Ano: 2004 URL: http://hdl.handle.net/10198/2202
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Aplicabilidade de sistemas de suporte à decisão em sistemas agroflorestais. Repositório Alice
SILVA, F. C. da; NARCISO, M.; HIGA, R. H.; LUCENA, L..
Infra-estrutura de banco de dados interagindo com GIS, DSSAT e AIDA/SAS. Simulação e modelagem da dinâmica de fósforo no sistema solo-planta. Sistemas de Informação Geográfica (GIS) e planejamento regional. Planejamento regional: interface GIS e simulação (via DSSAT). Potencialidades da linha de pesquisa. Considerações finais.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Sistemas de suporte a decisão; Sistemas agroflorestais; Sistemas de informação geográfica; Modelagem; Agroforest systems; Decision support system; Modeling; Simulation; Simulação.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/6881
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Development and Use of a Bioeconomic Model for Management of Mussel Fisheries under Different Nutrient Regimes in the Temperate Estuary of the Limfjord, Denmark Ecology and Society
Timmermann, Karen; Department of Bioscience, Aarhus University, Roskilde, Denmark; kti@dmu.dk; Dinesen, Grete E.; Section for Coastal Ecology, National Institute of Aquatic Science, Technical University of Denmark, Charlottenlund, Denmark; gdi@aqua.dtu.dk; Markager, Stiig; Department of Bioscience, Aarhus University, Roskilde, Denmark; markager@dmu.dk; Ravn-Jonsen, Lars; Department of Environmental and Business Economics, University of Southern Denmark, Esbjerg, Denmark; lrj@sam.sdu.dk; Bassompierre, Marc; Novo Nordisk A/S, Kalundborg, Denmark; mbass@post9.tele.dk; Roth, Eva; Department of Environmental and Business Economics, University of Southern Denmark, Esbjerg, Denmark; er@sam.sdu.dk.
Coastal ecosystems worldwide are under pressure from human-induced nutrient inputs, fishing activities, mariculture, construction work, and climate change. Integrated management instruments handling one or more of these problems in combination with socioeconomic issues are therefore necessary to secure a sustainable use of resources. In the Limfjord, a temperate eutrophic estuary in Denmark, nutrient load reductions are necessary to fulfill EU regulations such as the Water Framework Directive (WFD). The expected outcome of these load reductions is an improved water quality, but also reduced production of the abundant stock of filter-feeding blue mussels, Mytilus edulis. This is expected to have significant economic consequences for the million-euro mussel...
Tipo: Peer-Reviewed Synthesis Palavras-chave: Decision support system; Ecological-socioeconomic model; Eutrophication; Mussel production; Nutrient loading; Predictive models; System-based management; Water Framework Directive.
Ano: 2014
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Economic Consequences of Biological Variation: The Case of Mycoplasma in Swine Herds AgEcon
Otto, Lars.
We present an economic decision support model, based on a Bayesian network, for Mycoplasma infection in slaughter swine production. The model describes the various risk factors for Mycoplasma infection and their interactions. This leads to a stochastic determination of the consequences of productivity factors, and this again results in stochastic economic consequences when changing the risk factors or engaging in control arrangements. We use the model to calculate how estimated prevalence and level of Mycoplasma changes when we gather evidence from various veterinarian examinations, and we show how this influences the distribution of the economic results of a change in strategy to fight Mycoplasma. One result is that the profitability in fighting...
Tipo: Conference Paper or Presentation Palavras-chave: Decision support system; Bayesian network; Pig; Mycoplasma; Livestock Production/Industries; C11; D81; Q12.
Ano: 2005 URL: http://purl.umn.edu/24458
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Environmental Flows: Striking the Balance between Development and Resource Protection Ecology and Society
King, Jackie; University of Cape Town; Jackie.King@uct.ac.za; Brown, Cate; Southern Waters Ecological Research and Consulting;.
Management of scarce water resources through the use of environmental flows, particularly in developing countries in data-poor arid areas, raises many scientific challenges. These include transforming hydrological data into an ecologically relevant format, providing quantified predictions of river responses to flow change, describing the impacts of river change on common-property users of the rivers, providing the information in a format that decision makers can use, and guiding monitoring and adaptive management. Each of these challenges emerged in South Africa during the last two decades, when rivers and other aquatic ecosystems were enhanced in stature from having no rights to their own water to being one of only two sectors with a right to water; the...
Tipo: Peer-Reviewed Reports Palavras-chave: Environmental flows; South Africa; Holistic approach; Biophysical change; River condition; Common-property use; Decision support system.
Ano: 2006
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Establishing a benefits transfer database for biosecurity decision making an indigenous biodiversity AgEcon
Bell, Brian A.; Cudby, Charlotte; Yap, Michael.
An imbalance of quantitative information on pest and disease impacts hampers biosecurity decision-making; there is relatively good information about impacts on industry, but relatively poor information about how society values the impacts on indigenous biodiversity. A benefits transfer process based on a database of choice experiments could help to redress this imbalance. This paper: briefly reviews four choice experiments that will be the foundation of a database; reviews benefit transfer literature; and sets out framework ideas for a Decision Support System (DSS), which will incorporate biodiversity values via a process for benefit transfer to facilitate more informed biosecurity decisions.
Tipo: Conference Paper or Presentation Palavras-chave: Benefit transfer; Database; Biosecurity; Biodiversity; Decision support system; Resource /Energy Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/47621
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Evaluation of Bayesian Networks in Participatory Water Resources Management, Upper Guadiana Basin, Spain Ecology and Society
Zorrilla, Pedro; Department of Geodynamics, Faculty of Geological Sciences, Complutense University of Madrid, Spain; pedro.zorrilla@geo.ucm.es; Carmona, Gema; Technical University of Madrid, Department of Agricultural Economics, Spain;; Varela-Ortega, Consuelo; Technical University of Madrid, Department of Agricultural Economics, Spain;; Bromley, John; Oxford University School of Geography and the Environment, Centre for Water Research, United Kingdom;; Henriksen, Hans Jorgen; Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark;.
Stakeholder participation is becoming increasingly important in water resources management. In participatory processes, stakeholders contribute by putting forward their own perspective, and they benefit by enhancing their understanding of the factors involved in decision making. A diversity of modeling tools can be used to facilitate participatory processes. Bayesian networks are well suited to this task for a variety of reasons, including their ability to structure discussions and visual appeal. This research focuses on developing and testing a set of evaluation criteria for public participation. The advantages and limitations of these criteria are discussed in the light of a specific participatory modeling initiative. Modeling work was conducted in the...
Tipo: Peer-Reviewed Reports Palavras-chave: Bayesian networks; Decision support system; Evaluation; Groundwater management; Guadiana Basin; Participatory modeling; Spain; Water management; Water use conflicts.
Ano: 2010
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Financial and Risk Management Assistance: Decision Support for Agriculture AgEcon
Klose, Steven L.; Outlaw, Joe L..
The Financial and Risk Management (FARM) Assistance program created by Texas Cooperative Extension is a strategic analysis service offered to farmers and ranchers in Texas. The program serves as an example of large-scale, focused programming by extension agencies, as well as the implementation of technical stochastic simulation methods for use on the farm.
Tipo: Journal Article Palavras-chave: Decision information; Decision support system; Extension programming; Farm level analysis; Outreach; Simulation; Q16; Q12; C15; D83.
Ano: 2005 URL: http://purl.umn.edu/43516
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Participatory Building of a Decision Support System for Adaptive Water Management in the Upper Guadiana Basin AgEcon
Carmona, Gema; Varela-Ortega, Consuelo.
Water management has evolved in the last years towards more integrated and participatory approaches, aiming at improving the adaptability of water systems. Following this line, we propose a methodology to build a decision support system, based on the participation of stakeholders and the integration of the different disciplines involved in water use, as well as the inclusion of uncertainties in the management planning. The process has been implemented in the Upper Guadiana basin (Spain) with the aim of solving the existing conflicts: the aquifer, which is the main water source in the area, has been over-exploited during the last decades for irrigation. This has lead to serious degradation of natural water-related ecosystems and important social conflicts....
Tipo: Conference Paper or Presentation Palavras-chave: Decision support system; Bayesian networks; Economic model; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/43855
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Planning of the Agrifood supply chain: a case study for the FVG region AgEcon
Rosa, Franco; Sossai, E.; Vasciaveo, Michela.
The aim of this paper is to discuss the planning of regional Agri-food supply chain using an integrated database territorial information. The objective is to optimize the chain performance using alternative solutions. Evidences are obtained with a case study performed in FVG region applied to maize-crop. Firstly it is explored the chain network composed by farms, collection points and processing plants; then territorial, agronomic and climate information are integrated to simulate realistic production forecast model applied to maize crop. Finally a program from graph analysis is used to allocate the production through the chain. The economic performance is evaluated using the net revenues varying with the intensification of maize production and adoption of...
Tipo: Conference Paper or Presentation Palavras-chave: Data integration; Supply chain; Decision support system; Crop simulation; Regional policy.; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Food Consumption/Nutrition/Food Safety; Labor and Human Capital.
Ano: 2010 URL: http://purl.umn.edu/95226
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Quantitative sidedress nitrogen recommendations for potatoes based upon crop nutritional indices IPB - Escola Superior Agrária
Rodrigues, M.A.; Coutinho, João; Martins, F.; Arrobas, Margarida.
The quantification of sidedress N rate from in-season information on crop N nutritional status is extremely important in order to use only the necessary amount of nutrient to achieve maximum yields without significant N losses from soil. During three consecutive years (1996, 1997 and 1998) field N fertilizer experiments with irrigated potato (Solanum tuberosum L., cv. Désirée) were conducted in Bragança (NE Portugal). Eight preplant treatments (0, 50, 100, 200 and 300 kg urea-N/ha and poultry manure, farmyard manure and municipal solid waste in rates equivalent to 100 kg organic-N/ha) were arranged as main plots and five sidedress N rates (0, 25, 50, 100 and 200 kg urea-N/ha) included as subplots. Petiole nitrate concentration, determined by a laboratory...
Tipo: Article Palavras-chave: Solanum tuberosum; Crop N management; Decision support system; Plant analysis; Tissue testing.
Ano: 2005 URL: http://hdl.handle.net/10198/2201
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The Adaptive Decision-Making Process as a Tool for Integrated Natural Resource Management: Focus, Attitudes, and Approach Ecology and Society
Lal, Padma; Australian National University; padma.lal@anu.edu.au; Lim-Applegate, Hazel; Australian National University; hlim_manila@hotmail.com; Scoccimarro, Michelle C; Australian National University;.
Integrated natural resource management (INRM) and its many closely related approaches are generally considered to be more effective than single-disciplinary approaches for managing the complex resource issues currently facing many countries. INRM approaches aim to integrate several disciplines and involve different stakeholders operating in their own subsystems across different spatial and temporal scales. These approaches focus on identifying management strategies for sustaining natural resource stocks and flows of goods and services as well as their underlying ecological processes. Changes in the behavior of consumers and producers and in the allocation of resources among uses, users, time, and space will be necessary to achieve sustainable development....
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptive decision-making process; Bioeconomic models; Commodity research; Decision support system; Integrated natural resource management..
Ano: 2001
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การหาค่าสัมประสิทธ์ทางพันธุกรรมของแบบจำลอง CSM-CROPGRO-Soybean Model สำหรับถั่วเหลืองพันธุ์เชียงใหม่ 60 Thai Agricultural
Walaiporn Sasiprapa; Wirasak Tepchan; Raweewan Cheukittisak; Wibharat Damrikhemtakul; Nicha Pothong.
Objective of this study was to determine the genetic coefficient of soybean cv CM 60. CM 60 has broad adaptation and can be grown in both dry season and rainy season. It is still popular among soybean growers. The experiment was conducted during 2551-2552 at Chiang Mai Field Crops Research Center, Sukothai ARDC and Loie ARDC. Growth and development of the crop were studied. Data were recorded for growth characters and development characters vegetative phases and reproductive phases. The plants were harvested at V3, R1, R3, R5, R6, R7 and R8 growth stages and separated into stems leaves and seeds. Yield and yield components were also determined at final harvest. The data were used in determining genetic coefficient of CM 60 soybean cultivar using...
Tipo: Collection Palavras-chave: Cultivar coefficient; CM 60; Crop simulation model; Decision support system; Glycine max; ถั่วเหลือง; พันธุ์เชียงใหม่ 60; แบบจำลองการเจริญเติบโตของพืช; ระบบสนับสนุนการตัดสินใจ; สัมประสิทธิ์ทางพันธุกรรม.
Ano: 2011 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5183
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