Relevant bibliographies by topics / Agriculture Linear programming

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Agriculture Linear programming'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Agriculture Linear programming"

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Andreea, Ion Raluca, and Turek Rahoveanu Adrian. "Linear Programming in Agriculture." International Journal of Sustainable Economies Management 1, no. 1 (January 2012): 51–60. http://dx.doi.org/10.4018/ijsem.2012010105.

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In agriculture, the production structure of farms can be highly diversified to reduce risk and uncertainty related to unsealing the products. To determine the optimal structure of crops, different methods which take into account the income and expenditure of crops per hectare are used. As a result, the area of each crop is identified, so that, in combining them to derive maximum profit level. In this paper, linear programming method is used for optimizing profit, investigating whether, after applying the econometric model, the profit increased or not. The results show that profit rose to 143% and costs reduced to 81%.
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Lone, MA, MS Puktha, and SA Mir. "Fuzzy linear mathematical programming in agriculture." BIBECHANA 13 (December 3, 2015): 72–76. http://dx.doi.org/10.3126/bibechana.v13i0.13363.

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In this paper we present a Fuzzy linear Mathematical programming approach for optimal allocation of land under cultivation. Fuzzy Mathematical programming approach is more realistic and flexible optimal solution for the agricultural land cultivation problem. In this study we have discussed how to deal with decision making problems that are described by Fuzzy linear programming (Flp) models and formulated with the elements of uncertainty. This form of approximation can be convenient and sufficient for making good decisions. BIBECHANA 13 (2016) 72-76
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Novkovic, Nebojsa, Sandor Somodji, and Milenko Matkovic. "Selection of agricultural land for multifunctional agriculture." Applied Studies in Agribusiness and Commerce 4, no. 1-2 (July 30, 2010): 49–52. http://dx.doi.org/10.19041/apstract/2010/1-2/6.

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The modern concept of rural development implies the use of agricultural resources, primarily agricultural land, for other (non-agricultural) activities besides its agricultural purpose. The integral aim of this concept of rural development is the maximization of economic results, besides the sustainable development of rural areas, environmental protection and the production of strategic (staple) agricultural products. The objective of this paper is to define the general, theoretical, quantitative model for the determination of the size and quality of agricultural land which, considering the above-mentioned demands (criteria), is optimal for the utilization in agricultural production in certain regions. The remaining agricultural land would be available for the non-agricultural purposes. The economic optimal model for the selection of agricultural land in the traditional agriculture is the model of linear programming. The criteria of the land selection for traditional agriculture are the economic effectiveness (measured by net income or by gross national product) and the economic efficiency (measured by the production economy). The maximum economic effectiveness is determined by the standard method of linear programming and the maximum economy by the method of broken linear programming. The solution of compromise can be determined by multi-criteria programming, based on the minimum differences. The limitation groups in the mentioned variations of the model are: limitations of production quotas of agricultural products, minimum quantities of staple agricultural products, limitations of processing plants in a region (minimum and maximum), limitation of crop rotation, limitations of the needs in animal husbandry for bulky for age and limitations of agricultural land according to various types of utilization. By quantitative defining of the structure and size of agricultural land for traditional agriculture, “the surplus” and structure of agricultural land available for non-agricultural purposes is automatically determined.
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Janová, Jitka, and Pavla Ambrožová. "Optimization of production planning in Czech agricultural co-operative via linear programming." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 57, no. 6 (2009): 99–104. http://dx.doi.org/10.11118/actaun200957060099.

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The production planning is one of the key managerial decisions in agricultural business, which must be done periodically every year. Correct decision must cover the agriculture demands of planting the crops such as crop rotation restrictions or water resource scarcity, while the decision maker aims to plan the crop design in most profitable way in sense of maximizing the total profit from the crop yield. This decision problem represents the optimization of crop design and can be treated by the me­thods of linear programming which begun to be extensively used in agriculture production planning in USA during 50’s. There is ongoing research of mathematical programming applications in agriculture worldwide, but the results are not easily transferable to other localities due to the specific local restrictions in each country. In Czech Republic the farmers use for production planning mainly their expert knowledge and past experience. However, the mathematical programming approach enables find the true optimal solution of the problem, which especially in the problems with a great number of constraints is not easy to find intuitively. One of the possible barriers for using the general decision support systems (which are based on mathematical programming methods) for agriculture production planning in Czech Republic is its expensiveness. The small farmer can not afford to buy the expensive software or to employ a mathematical programming specialist. The aim of this paper is to present a user friendly linear programming model of the typical agricultural production planning problem in Czech Republic which can be solved via software tools commonly available in any farm (e.g. EXCEL). The linear programming model covering the restrictions on total costs, crop rotation, thresholds for the total area sowed by particular crops, total amount of manure and the need of feed crops is developed. The model is applied in real-world problem of Czech agriculture cooperative and the results of its solution are compared to the real decision made. The applicability of the model in every day agriculture managerial practice in Czech Republic is discussed and its possible enlargement is mentioned.
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Butterworth, Keith. "Practical Application of Linear/Integer Programming in Agriculture." Journal of the Operational Research Society 36, no. 2 (February 1985): 99. http://dx.doi.org/10.2307/2582501.

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Butterworth, Keith. "Practical Application of Linear/Integer Programming in Agriculture." Journal of the Operational Research Society 36, no. 2 (February 1985): 99–107. http://dx.doi.org/10.1057/jors.1985.22.

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Prišenk, Jernej, Jernej Turk, Črtomir Rozman, Andreja Borec, Magdalena Zrakić, and Karmen Pažek. "Advantages of combining linear programming and weighted goal programming for agriculture application." Operational Research 14, no. 2 (June 25, 2014): 253–60. http://dx.doi.org/10.1007/s12351-014-0159-4.

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HOWES, RICHARD. "A TEST OF A LINEAR PROGRAMMING MODEL OF AGRICULTURE." Papers in Regional Science 19, no. 1 (January 14, 2005): 123–40. http://dx.doi.org/10.1111/j.1435-5597.1967.tb01374.x.

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Ward, James D., Peter J. Ward, Evangeline Mantzioris, and Christopher Saint. "Optimising diet decisions and urban agriculture using linear programming." Food Security 6, no. 5 (August 27, 2014): 701–18. http://dx.doi.org/10.1007/s12571-014-0374-0.

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Borges Júnior, João C. F., Paulo A. Ferreira, Camilo L. T. Andrade, and Bettina Hedden-Dunkhorst. "Computational modeling for irrigated agriculture planning. Part I: general description and linear programming." Engenharia Agrícola 28, no. 3 (September 2008): 471–82. http://dx.doi.org/10.1590/s0100-69162008000300008.

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Linear programming models are effective tools to support initial or periodic planning of agricultural enterprises, requiring, however, technical coefficients that can be determined using computer simulation models. This paper, presented in two parts, deals with the development, application and tests of a methodology and of a computational modeling tool to support planning of irrigated agriculture activities. Part I aimed at the development and application, including sensitivity analysis, of a multiyear linear programming model to optimize the financial return and water use, at farm level for Jaíba irrigation scheme, Minas Gerais State, Brazil, using data on crop irrigation requirement and yield, obtained from previous simulation with MCID model. The linear programming model outputted a crop pattern to which a maximum total net present value of R$ 372,723.00 for the four years period, was obtained. Constraints on monthly water availability, labor, land and production were critical in the optimal solution. In relation to the water use optimization, it was verified that an expressive reductions on the irrigation requirements may be achieved by small reductions on the maximum total net present value.
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Dissertations / Theses on the topic "Agriculture Linear programming"

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Finlayson, John David. "A linear programming study of the effects of climatic change on Scottish agriculture." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/28015.

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Although these is considerable uncertainty in the literature about the effects of greenhouse gases on the climate there is little doubt that the composition of the atmosphere has changed in recent times. As a result of human activities the concentration of CO2 is likely to double from pre-industrial levels by the middle of next century and as a consequence, global temperatures are likely to rise. The potential importance of a change in the climate for the environment and agriculture and the complexity of the issues that are involved means that it is important to develop analytical tools to study this problem. The principal aim of the study is to evaluate the possible effects of a change in climate on the pattern, structure and viability of agriculture in Scotland. To address this objective it was necessary to evaluate the effects of climate change at a range of different levels of resolution. A linear programming model was developed that includes a large amount of biological, physical and economic detail. The models of crop growth (grass, grass/clover, swedes, potatoes, barley, vining peas, oilseed rape and wheat) account for variations in weather conditions, soil types, weeds, applications of nitrogen and pesticides, different planting dates and cropping rotations. The livestock operations that are modelled include sheep, dairy and beef fattening enterprises. In addition a considerable amount of effort was devoted to modelling variations in machinery requirements (and the sensitivity of these operations to climate) labour, buildings and finance. The inclusion of this information has allowed the types of adjustments that farmers may implement to be considered. The model is structured as a series of linked sub-problems where the most basic units are farms. In turn the interactions between farmers in terms of flows of intermediate goods, land and labour are considered at the regional and national level. While further developments to the model would allow the status of Scottish agriculture to be more accurately modelled the model in its current stage of development has allowed a realistic evaluation of the effects of climate change to be performed. The results of this study suggest that climate change will have a detrimental effect on Scottish agriculture, however, the effects of climate are likely to vary between the different farm types and regions. In general, cropping farms are likely to benefit from a change while the profitability of livestock farms, and sheep farms in particular, will decline.
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Sellen, Daniel Marc 1959. "A linear programming analysis of irrigated agriculture on the island of Santiago, Republic of Cape Verde." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277065.

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Agriculture in Cape Verde is severely constrained by a harsh physical environment, and large amounts of foreign aid are required to meet demand for food. Policy-makers believe that the development of irrigated farming offers the most potential for increasing food production, requiring a transition from the dominant irrigated crop, sugar cane, to food crops. Linear programming techniques are used to model a representative farm on the island of Santiago. Water constraints are varied parametrically, showing that revenues are extremely sensitive to frequency of irrigation, and that the dominance of low-profit crops is explained by unreliable and long watering intervals. The shift from cane to more profitable food crops will therefore require water reform aimed at increasing irrigation frequency and improving its reliability. Significant improvements in food production and farm incomes can be achieved even considering present supplies of water and land.
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Halili, Rushan. "Methods for Evaluating Agricultural Enterprises in the Framework of Uncertainty Facing Tobacco Producing Regions of Virginia." Diss., Virginia Tech, 1999. http://scholar.lib.vt.edu/theses/available/etd-02082000-10550006.

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Oliveira, Renato Alves de. "Planejamento da conversão do café convencional para o orgânico: um estudo de caso." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/11/11132/tde-25042012-152531/.

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A Agricultura Orgânica oferece, ao mercado consumidor, produtos isentos de agentes químicos. Os produtores que fazem uso do sistema convencional e estiverem interessados em adotar a tecnologia orgânica de produção deverão se credenciar junto ao Ministério da Agricultura através de uma certificadora de produtos orgânicos. A certificação pode ser por auditoria ou participativa, mas para recebê-la o agropecuarista deve seguir as normas e procedimentos estabelecidos pela legislação brasileira de produtos orgânicos. Um dos procedimentos é o processo de conversão ou transição, pelo qual a atividade agrícola em manejo convencional muda para o manejo orgânico. O tempo de transição pode variar de 12 a 18 meses, no mínimo, de acordo com a espécie vegetal ou animal e pelo histórico da unidade produtiva. No caso do café, a conversão do sistema convencional para o orgânico pode trazer consigo, entre outros benefícios, a independência de insumos externos, menor risco para a saúde e pode proporcionar maior lucro ao produtor. Esta pesquisa tem como objetivo desenvolver um planejamento de produção do café para o processo de conversão da técnica convencional para a orgânica no Sítio Terra Verde em Espírito Santo do Pinhal no estado de São Paulo. Utilizou-se a metodologia de programação linear para maximizar o lucro e minimizar o custo de produção do café em seis cenários. O plano de conversão foi de oito anos, respeitando a bienalidade do cafeeiro, passando por três fases de manejo: substituição de insumos, conversão e produção orgânica. Foram realizadas três análises sobre o planejamento de conversão. Os resultados da primeira análise mostraram que a adoção da técnica orgânica proporcionou ao cafeicultor lucros superiores aos do sistema convencional no final do período de conversão, quando ocorre aumento sobre o preço da saca. Os cenários da segunda análise identificaram uma situação de prejuízo ao cafeicultor no 4º ano do planejamento e uma condição econômica desvantajosa em relação ao sistema convencional, pois o lucro geral foi inferior, devido à redução da produtividade até o final da conversão. A terceira análise apresentou uma situação em que o produtor não recebe o incremento sobre o preço da saca de café quando em manejo orgânico, o que levou à obtenção de resultado desvantajoso ao produtor, no qual o lucro geral do sistema orgânico foi muito baixo em relação ao do sistema convencional. Conclui-se que especificamente para o Sítio Terra Verde, pode ser economicamente viável a adoção da produção orgânica na cultura do café, mas é com extrema dependência do diferencial do preço entre os sistemas convencional e orgânico.
Organic agriculture offers products to the consumer market free of chemicals. Producers who use the conventional system and are interested in adopting organic production technology must be certified by the Ministry of Agriculture through a certification of organic products. Certification may be obtained by auditing or participatory, but in order to receive it, the rural producers must follow the rules and procedures established by the Brazilian laws for organic products. One example is the process of conversion or transition, through which the agricultural activity is converted from conventional farming to the organic one. The transition time may vary from 12 to 18 months, at least, according to the vegetal or animal species and the farm history. In the case of coffee, the conversion from conventional to the organic system can bring some benefits, for example, the independence of external inputs, risk lower to health and can provide more profit to the producer. Thus, this research aims carry out a coffee a plan of partial conversion to organic production technology for a rural property called Sítio Terra Verde at Espírito Santo do Pinhal, São Paulo State, which uses the conventional system. It was used linear programming to maximize profit and minimize costs of coffee production in six scenarios. The conversion planning was established to occur in eight years, respecting the twice yearly harvesting, with three stages: input substitution, conversion and organic production. Were held three analysis on the conversion plan. The results of the first analysis showed that the adoption of organic technique provided greater profits for the producers than the conventional system at the end of the conversion period, when the coffee bag\'s price raises. The second analysis scenarios identified a prejudice situation for the producer in the 4th year of planning and a disadvantage economic condition compared to the conventional system, because the overall profit was lower due to the reduction in productivity by the end of conversion time. The third analysis showed a situation where the producer does not receive a higher price due to the organic management, with a disadvantageous result for the producer, since the overall profit of the organic system was much lower compared to the conventional system. It was concluded that specifically for Sítio Terra Verde the adoption of organic management for the coffee farming can be economically viable, but it is extremely dependent on price differential between conventional and organic systems.
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Erickson, Jake. "Nutritional and Economic Analysis of Small-Scale Agriculture in Imbaburra, Ecuador." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1468.

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Nutritional and Economic Analysis of Small-Scale Agriculture in Imbabura, Ecuador Intervention projects in the developing world normally aim to satisfy either the nutritional needs of a group, or advancing the economic stability, but not both. One of the many issues that may arise by narrowly focusing and creating an aid program is that although a group may be fed, they are not equipped to mitigate risks that will arise after project completion and thus continue or revert back to a malnourished state. A bridge is required to join the economic and nutritional programs to create aid interventions that are sustainable past the point of donor separation. This paper proposes the creation of a linear program model to assess the effectiveness and sustainability of such intervention programs. Investigating the effects of merging economic and nutrition interventions as pursued in this report required the first step to be the creation of economic information for a typical small-scale farm. The region of Cochas, Imbabura, Ecuador was selected as the study area in which data would be collected for a representative sample of production and living circumstances of a poor, rural, and small-scale farmer. A comprehensive set of estimated cost and return (enterprise) budgets for small-scale agricultural crops that could be grown by the representative farm family used in this analysis was developed. This was accomplished via data collected in rural Ecuador by Jake Erickson, a Master's student in the department of Applied Economics at Utah State University. Of the supervisory committee, daily interaction occurred with Dr. DeeVon Bailey, project supervisor, and Dr. Ruby Ward, linear program specialist, whom were crucial in project completion. Various scenarios of the linear program were run with variations to the selection of nutritional requirements, off-farm income, and allowing food purchases off the family farm. Each of these scenarios was pursued as they mimic circumstances in which families may struggle to exist within the developing world. The results of each run are compared across the set of results to help understand what assumptions need to exist to validate an intervention's approach to improving the standard of living or nutrition of the world's poor, rural, small-scale farmers. This model is a preliminary attempt at assessing the sustainability of merging common intervention approaches and it should be recognized that further development is needed to create a more encompassing model. Utilizing enterprise budgets, a linear programming model, and nutritional information, such as is done in this study, can help in planning rural development interventions as the income maximization and least-cost diet models are integrated into one within the resource and management constraints of the representative small-scale farm.
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Deus, Carlos da Conceição. "Os sistemas de agricultura familiar de Timor-Leste: uma abordagem com foco no bem-estar dos produtores." Doctoral thesis, Universidade de Évora, 2019. http://hdl.handle.net/10174/27856.

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A agricultura em Timor-Leste é de natureza familiar e um modo de vida para as populações rurais que são a maior parte da população. O objectivo deste trabalho é medir o bem-estar dos agregados familiares tendo como principal indicador o rendimento disponível, com base em actividades produtivas, reprodutivas e comunitárias, as quais são centrais à organização e funcionamento das comunidades rurais timorenses. A metodologia utilizada para representar o funcionamento dos agregados familiares é a programação linear etnográfica (PLE), o que representa do ponto de vista científico um contributo importante na investigação dos sistemas de agricultura familiar e do bem-estar dos produtores em Timor Leste. A PLE permite testar políticas, tecnologias, alterações reprodutivas e mudanças das normas sociais comunitárias, explorar os respectivos resultados e prever as consequências para o futuro dos agregados familiares e das comunidades rurais. Os resultados mostram que os agregados familiares com explorações agrícolas de pequena e, nalguns casos também as de média dimensão, nas condições actuais, não geram rendimento suficiente para níveis de consumo e bem-estar acima da linha da pobreza. As alternativas de política de transferência tecnológica, assim como o excedente da mão-de-obra masculina em trabalho fora da exploração, são insuficientes para guindar as explorações de pequena dimensão a ultrapassar a linha da pobreza. Outras alternativas, como o apoio directo ao rendimento são possíveis, mas dependem dos recursos disponíveis para a sua implementação enquanto, a médio e longo prazo, o aumento da área das explorações, afigura-se uma opção mais válida para quebrar o ciclo vicioso da pobreza. Mas esta última alternativa, requer uma formulação de política fundiária que tenha em conta todas especificidades socio-étnico-culturais dos agregados rurais timorenses; ABSTRACT: Agriculture in Timor-Leste is family-based and a way of life for the rural population who are the majority of the population. The objective of this work is to measure the well-being using as main indicator the disposable income, taking into account not only productive activities but also reproductive and community activities, which are central to the organization and functioning of East Timorese rural communities. The methodology used to represent the functioning of households is linear ethnographic programming (PLE), which represents from the scientific point of view an important contribution in the investigation of family farming systems and the welfare of producers in East Timor. The PLE models allow us to test policies, technologies, reproductive changes and changes in community social norms, explore their results and predict the consequences for the future of households and rural communities. The results show that households with small farms, and in some cases also medium-sized ones, under current conditions do not generate sufficient income for levels of consumption and well-being above the poverty line. Technological transfer policy alternative, as well as off-farm work of the male labor surplus, are insufficient to drive small farms beyond the poverty line. Other alternatives, such as direct income support, are possible but depend on the resources available for their implementation, while in the medium and long term the increase in holdings area is a more valid option to break the vicious cycle of poverty. But the latter alternative requires a land policy formulation that takes into account all socio-ethniccultural specificities of Timor-Leste rural households.
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Farhat, M. Y. "A linear programming analysis of an Iraqi state farm." Thesis, Keele University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373163.

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Mohamed, Mohammed Abdel-Wahed. "Resource allocation on Egyptian state farms : a linear programming application." Thesis, Keele University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314639.

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Jerónimo, Jaime Agostinho. "Impactes do preço da água na agricultura no perímetro irrigado do Vale de Caxito." Master's thesis, Universidade de Évora, 2013. http://hdl.handle.net/10174/15921.

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O aumento da pressão sobre os recursos hídricos tem levado muitos países a reconsiderarem os mecanismos utilizados na indução do uso eficiente da água. Isso é especialmente verdade para a agricultura irrigada, uma das principais consumidoras de água. Estabelecer o preço correcto da água é um dos mecanismos de tornar mais eficiente a alocação da água. Contudo, a definição de um preço para a água é ainda uma tarefa controvérsia principalmente nos países em que as populações rurais têm rendimentos deficientes. Assim, o presente trabalho de dissertação tem como objectivo a análise dos impactes económicos, sociais e ambientais de políticas de preço da água. A metodologia utilizada foi a Programação Linear, fazendo a sua aplicação ao Perímetro Irrigado do Vale de Caxito, localizado na Província do Bengo, a 45 km de Luanda, que tem como fonte o rio Dande; ABSTRACT:Increased pressure on water resources has led many countries to reconsider the mechanisms used in the induction of efficient water use. This is especially true for irrigated agriculture, a major consumer of water. Establishing the correct price of water is one of the mechanisms for more efficient allocation of water. However, the definition of a price for water is still a controversial task especially in countries where rural populations have poor yields. Thus, this dissertation aims to analyze the economic, social and environmental impacts of water price policies. The methodology used is the linear programming, making its application to the Irrigated Valley Caxito, located in Bengo Province, 45 kilometers from Luanda, which has as its source the river Dande.
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Aouadi, Nawel. "Evaluation ex ante des conséquences de l'adoption de la production intégrée en grandes cultures à l'échelle de la Bourgogne." Thesis, Dijon, 2015. http://www.theses.fr/2015DIJOS064/document.

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L’agriculture française est soumise à de fortes pressions. Elle subit une injonction forte à évoluer vers l’agroécologie, à adopter les principes de la production intégrée, à réduire l’usage de pesticides. Dans ces conditions, une transition vers des systèmes agricoles plus respectueux de l’environnement ne doit pas dégrader la compétitivité des exploitations et le revenu des agriculteurs.Le travail présenté ici a pour ambition de contribuer à la réflexion sur les possibilités de changer les modèles d’agriculture. L’objectif est d’évaluer les conséquences économiques et environnementales d’une adoption généralisée des principes de protection intégrée sur une région agricole en fonction de la diversité des situations de production. La Région Bourgogne est retenue dans le cadre de ce travail. Elle dispose de ressources expérimentales en production intégrée grâce à l’investissement historique de la recherche, du développement et de l’enseignement agricole dans cette région. Par ailleurs, la Bourgogne présente un bon compromis entre la diversité de ses situations de production en grandes cultures et le nombre de situations contrastées à considérer pour rendre compte de l’ensemble du territoire. Dans un premier temps, nous avons caractérisé la diversité des situations de production de la Bourgogne et la diversité des systèmes de culture, et nous avons étudié comment les systèmes de culture sont déterminés par les situations de production. Puis nous avons mis en place une méthode pour générer des systèmes de culture optimisés sur le plan économique dans le cadre des contraintes locales et des principes de protection intégrée. Cette méthode mobilise la programmation linéaire sous contrainte, mise en œuvre avec le logiciel GAMS. Elle a été testée pour deux situations de production contrastées de la Bourgogne, correspondant aux zones de plaines sans élevage et aux plateaux argilo-calcaires superficiels. Nous avons évalué les systèmes de culture simulés pour un ensemble de critères de la durabilité économique, sociale et environnementale. Nous les avons comparés aux performances des systèmes actuels dans ces milieux.Les résultats confirment que les systèmes de culture optimisés avec les principes de la protection intégrée sont différents en fonction du contexte de production. La performance économique est plutôt améliorée par rapport aux systèmes actuels dans la situation à fort potentiel, alors qu’elle est dégradée sur les sols de plateaux. Tous les indicateurs environnementaux considérés sont améliorés dans les deux types de milieu. Le travail permet d’identifier certains inconvénients de la protection intégrée, liés à l’augmentation de la charge de travail et à la complexité de gestion des systèmes.Avec les résultats obtenus et les méthodes proposées, le travail alimente les débats sur la durabilité des systèmes agricoles dans le domaine des grandes cultures
The agriculture in France is under intense pressure. Farmers are asked to change their crop management, to evolve toward agroecology, to follow the principles of Integrated Pest Management (IPM) and to reduce pesticide use. However such an evolution toward an alternative agricultural model will be possible only if innovative cropping systems are able to maintain competitive and profitable farms.The aim of our work is to contribute to the debates about this issue, by evaluating ex ante the potential consequences of adopting the principles of IPM over one whole agricultural region, taking into account the diversity of production situations within this region. We considered the Burgundy region for several reasons. This region has many experimental resources and available expertise on IPM. This agricultural area also has few but contrasted production situations. Both economic and environmental issues were considered.First, we studied the diversity of production situations and of cropping systems in the area, based on agricultural data sets, and we showed to what extent cropping systems are determined by the context. Then we developed a method to design fictive cropping systems, based on the optimisation of profitability while fulfilling the principles of IPM, and considering the constraints of the production situation. We used the GAMS software to implement this method based on linear programming. The method was tested on two contrasted production situations, namely the lowlands with high agricultural potential and no livestock, and the shallow soils of the plateau. We evaluated the generated cropping systems for a range of criteria covering different issues of sustainability, and we compared the performances to those of current cropping systems in these areas.Results corroborated that IPM-based cropping systems would be different in contrasted production situations. Profitability would be improved in the lowlands with high agricultural potential, whereas it would be negatively affected in the shallow soils of the uplands. All the environmental indicators that we used would be improved in both situations. Our work identified hindrances for the development of IPM, related for example to the increase in the workload at the farm level, and the increase in the system complexity.Both methods that we developed and the results we obtained should contribute to the current debates about the possible transition of arable cropping toward sustainability
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Books on the topic "Agriculture Linear programming"

1

1942-, Norton Roger D., ed. Mathematical programming for economic analysis in agriculture. New York: Macmillan, 1986.

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Hazell, Peter. Mathematical programming for economic analysis in agriculture. New York: Macmillan, 1986.

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Hazell, Peter. Mathematical programming for economic analysis in agriculture. New York: Macmillan, 1986.

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Bai︠a︡linov, Ė. B. Optimizat︠s︡ii︠a︡ planirovanii︠a︡ agropromyshlennogo proizvodstva v regione. Bishkek: Ilim, 1991.

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Asamenew, G. Resource allocation for small scale farmers of the star grass zone in Embu District, Kenya: A linear programming approach. Nairobi, Kenya: Institute for Development Studies, University of Nairobi, 1985.

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Kingwell, Ross. MUDAS, model of an uncertain dryland agricultural system: A description. [South Perth, W.A.]: Western Australian Dept. of Agriculture, 1991.

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Chvilicek, Jerome Leonard. Optimal farm plans for the Palouse using mixed integer linear programming techniques. 1989.

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Book chapters on the topic "Agriculture Linear programming"

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Barbier, Bruno. "Agricultural Production and Erosion in a Small Watershed in Honduras: a Non-Linear Programming Approach." In Contributions to Economics, 199–209. Heidelberg: Physica-Verlag HD, 2001. http://dx.doi.org/10.1007/978-3-642-57558-7_12.

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Lechuga, Gilberto Pérez, Otilio A. Acevedo Sandoval, Karla N. Madrid Fernández, and Raúl Román Aguilar. "A Model for Planning the Sowing of Agricultural Crops and Raising Animals Through Two-Stage Mathematical Programming." In Handbook of Research on Smart Computing for Renewable Energy and Agro-Engineering, 377–422. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1216-6.ch016.

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In this chapter, the authors present a mathematical model to calculate the exact quantities of animals that must compose a herd given the water, food, and land conditions available for their breeding. In the same model, the optimal calculation of vegetables that can be cultivated in the available land spaces is incorporated considering the same restrictions of water, nutrients, and area available for planting. Both models focus primarily from a deterministic perspective. Subsequently, the randomness of the same is uncovered through the uncertainty in the availability of water. Therefore, the first part of the proposal is made through a simple model of linear mathematical programming. The stochastic model is constructed from a two-phase mathematical programming model. The novelty of the proposal and its contribution consists of illustrating, step by step, the construction and solution of the scenarios of the stochastic model for a problem related to agriculture and animal husbandry.
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"Optimizing the Use of Resources: Linear Programming." In Agricultural Systems Management, 125–48. CRC Press, 2004. http://dx.doi.org/10.1201/9780203021835-14.

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"AGRICULTURAL POLICY MAKING." In Multiple Criteria and Multiple Constraint Levels Linear Programming, 478–93. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812810748_0022.

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Sowell, Robert S., and R. C. Ward. "Modeling Processes and Operations with Linear Programming." In Agricultural Systems modeting and Simulation, 112–56. CRC Press, 2018. http://dx.doi.org/10.1201/9781482269765-5.

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BECKER, Heinrich. "A Linear Programming Approach to the Subjective Equilibrium Theory of the Farm Household within Traditional Agricultural Societies in Mali." In Developments in Agricultural Economics, 111–26. Elsevier, 1994. http://dx.doi.org/10.1016/b978-0-444-81969-7.50013-3.

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Conference papers on the topic "Agriculture Linear programming"

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Jarernsuk, Saran, and Busaba Phruksaphanrat. "Supply Chain for Perishable Agriculture Products by Possibilistic Linear Programming." In 2019 IEEE 6th International Conference on Industrial Engineering and Applications (ICIEA). IEEE, 2019. http://dx.doi.org/10.1109/iea.2019.8715221.

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Patrizia Busato and Remigio Berruto. "Combined Use of Simulation Modeling and Linear Programming for Logistic Design of the Slurry Distribution Systems." In 7th World Congress on Computers in Agriculture Conference Proceedings, 22-24 June 2009, Reno, Nevada. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2009. http://dx.doi.org/10.13031/2013.29061.

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A Ahmadi and P H Robinson. "The Linear Programming Module of CAPRICORN Package: A Windows Program for Formulating and Evaluating Rations for Goats." In 7th World Congress on Computers in Agriculture Conference Proceedings, 22-24 June 2009, Reno, Nevada. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2009. http://dx.doi.org/10.13031/2013.29092.

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Osgood-Jacobs, Logan, Akwasi A. Boateng, Peregrine Carlson, Charles A. Mullen, and Nelson Macken. "Mass Balance and Exergy Analysis of a Fast Pyrolysis System." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62319.

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Mass balance closure and exergetic efficiency is evaluated for a bench scale fast pyrolysis system. The USDA Agricultural Research Service (ARS) has developed this system for processing energy crops and agricultural residues for bio-oil (pyrolysis oil or pyrolysis liquids) production. Mass balance closure cannot be achieved due to the system size and complexity of inputs and outputs. A linear programming optimization model is developed to use the experimental data to achieve improved closure of elemental balances without losing the overall representation of the pyrolysis products. Having improved the mass balance, it is then possible to evaluate the exergy of the system. Exergy flows are computed using statistical relationships and other standard techniques. Computational details and results are discussed for switchgrass, a typical candidate biomass. Solutions for the minimum and maximum bio-oil outputs were generated. These particular results indicated that bio-oil accounted for approximately 10% of the loss mass. Considering all products as useful, the exergy destruction is approximately 20%. If the bio-oil alone is considered useful, the exergy destruction is about 40%. Further exercise of the model can be useful in evaluating mass losses and exergy for other feedstock and experimental runs.
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