Analise Operacional E Economica Do Sistema De Plantio Mecanizado De Cana De Acucar Saccharum Spp

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Análise operacional e econômica do sistema de plantio mecanizado de cana-de-açúcar (Saccharum spp.).

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (691 download)

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Book Synopsis Análise operacional e econômica do sistema de plantio mecanizado de cana-de-açúcar (Saccharum spp.). by :

Download or read book Análise operacional e econômica do sistema de plantio mecanizado de cana-de-açúcar (Saccharum spp.). written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: O presente trabalho teve por objetivo o estudo comparativo entre o plantio mecanizado e semi-mecanizado de cana-de-açúcar (Saccharum spp.). Os estudos foram conduzidos em área cedida pelo grupo COSAN (unidade Costa Pinto), no município de Piracicaba, SP, entre outubro de 2005 e outubro de 2006. Para tal, foi realizado um ensaio padronizado, onde, sob as mesmas condições de campo e utilizando a mesma variedade de mudas (SP 80-3280), foram efetuados os plantios mecanizado e semi-mecanizado. A densidade de plantio foi de 13,2 e 9,6 t.ha-1, para o plantio mecanizado e semi-mecanizado, respectivamente, sendo que o mecanizado apresentou menor número de falhas e conseqüentemente maior número de perfilhos. Por sua vez, o plantio mecanizado apresentou uma capacidade efetiva de 1,38 ha.h-1 e mostrou-se mais vantajoso economicamente, com um custo operacional efetivo estimado em 96,7 R$.ha-1, em comparação ao semi-mecanizado que apresentou valores da ordem de 216,2 R$.ha-1. Em relação à produtividade o plantio semimecanizado apresentou um resultado 1,5 t.ha-1 maior, porém este valor não difere estatisticamente do valor encontrado no semi-mecanizado. Conclui-se que o fracionamento dos colmos em rebolos do sistema mecanizado ocasiona a diminuição do número de gemas viáveis, o que contribui para um maior número de falhas de plantio, porém o custo operacional efetivo do plantio mecanizado é inferior ao semimecanizado. Já a maior densidade de mudas do plantio mecanizado não resultou em diminuição de falhas e conseqüentemente não melhorou a produtividade agrícola, mas contribuiu para um menor rendimento.

Avaliação de um sistema de plantio mecanizado de cana-de-açúcar

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (691 download)

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Book Synopsis Avaliação de um sistema de plantio mecanizado de cana-de-açúcar by :

Download or read book Avaliação de um sistema de plantio mecanizado de cana-de-açúcar written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: O sistema de plantio mecanizado vem se mostrando mais rentável e viável do ponto de vista operacional do que o sistema semimecanizado, além de suprimir a falta de mão-de-obra provocada principalmente pela mecanização da colheita. Os parâmetros biométricos da cultura, a avaliação dos custos operacionais e demanda energética das plantadoras são importantes para avaliação do desenvolvimento vegetativo da cana-de-açúcar, para adequação do custo de produção e escolha da fonte de potência. Assim o presente trabalho objetivou avaliar as diferenças entre os parâmetros biométricos de uma variedade de cana submetida ao plantio mecanizado e semimecanizado, além de analisar a demanda energética e o desempenho operacional em relação à mobilização do solo da plantadora de cana picada. Do mesmo modo avaliou a capacidade efetiva de uma plantadora de cana-de-açúcar picada, assim como o custo efetivo deste sistema, comparando com o custo efetivo do plantio convencional (semimecanizado). Concluiu-se que o plantio mecanizado causou maiores danos às gemas, reduzindo o número de gemas viáveis por metro de sulco e de perfilhos, aumentando a porcentagem de falhas de plantio, refletindo na redução significativa da produtividade agrícola. As variáveis, força de tração, potência na barra de tração, consumo horário e capacidade de campo efetiva foram diretamente proporcionais ao incremento da velocidade. Já a área e volume de solo mobilizado, e o consumo especifico operacional não sofreram variações significativas pelo aumento da velocidade. A capacidade efetiva mensurada foi de 1,11 ha h-1. O custo efetivo de plantio mecanizado, sem envolver custos anteriores (corte, carregamento e transporte de mudas até a área de plantio), mostrou-se altamente vantajoso quando comparado com o semimecanizado, que apresentou um custo total de 216, 24 R$ ha-1, comparado aos 121,00 R$ ha-1, ou seja, 56% a mais.

Plantio mecânico de cana-de-açúcar (Saccharum spp.): desempenho operacional e econômico

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (691 download)

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Book Synopsis Plantio mecânico de cana-de-açúcar (Saccharum spp.): desempenho operacional e econômico by :

Download or read book Plantio mecânico de cana-de-açúcar (Saccharum spp.): desempenho operacional e econômico written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Com o objetivo de estudar o plantio mecânico da cana-de-açúcar avaliando o desempenho operacional e econômico de uma plantadora de cana, foram realizados ensaios padronizados em condições de campo na Cosan - Costa Pinto, município de Piracicaba, SP, entre outubro de 2005 e outubro de 2006. A variedade de cana foi a SP 80-3280 de 11 meses e primeiro corte e, sob as mesmas condições de campo foram efetuados o plantio mecânico e o convencional (utilizado como testemunha). A densidade de plantio foi de 8,4 e 11,1 t ha1, para o plantio convencional e mecânico, respectivamente, sendo que o mecânico apresentou menor número de perfilhos e consequentemente um maior número de falhas. Falhas essas, que refletiram na produtividade agrícola, cujos resultados foram de 88,9 para o plantio convencional e de 77,4 t ha1, para o mecânico. Quanto à avaliação de desempenho operacional, a plantadora Santal PCP2 operou em velocidade de plantio de 5,5 km h1, exigindo esforço tratório médio de 3060 kgf, consumo efetivo de combustível de 37,80 L h1 e Capacidade Efetiva de 1,64 ha h1. Em termos de custos operacionais de plantio, foi, significativamente, mais vantajoso, com custo de R$ 77,60 ha1, em comparação ao plantio convencional que apresentou valores de R$ 216,20 ha1, o que representa uma redução da ordem de 64,1%, nos custos da operação, sem envolver custos anteriores (corte, carregamento e transporte de mudas até a área de plantio). Quanto aos aspectos agronômicos envolvidos, pode-se concluir que, os danos provocados pelo fracionamento dos colmos em rebolos, utilizados no plantio mecânico, reduz a quantidade de gemas viáveis, contribuindo para um menor perfilhamento, maior número de falha e menor produtividade apesar da maior densidade de mudas utilizada.

Colheita mecanizada

Author : Sérgio Morais Carvalho Filho
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (559 download)

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Book Synopsis Colheita mecanizada by : Sérgio Morais Carvalho Filho

Download or read book Colheita mecanizada written by Sérgio Morais Carvalho Filho and published by . This book was released on 2000 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: O Brasil é, atualmente, o maior produtor mundial da cana-de-açúcar (Saccharum spp), produzindo 338 milhões de toneladas na safra 97/98, o que representa 27% da produção mundial, IDEA (1998). A colheita mecanizada é de extrema importância comomostra Ripoli e Paranhos (1987) por dois aspectos fundamentais; o primeiro devido a crescente dificuldade e encarecimento de mão-de-obra para o corte manual, e o segundo ao interesse na obtenção de aumentos nos desempenhos das operações decolheita, com sua conseqüente diminuição de custo. Atualmente fatores legais como o Decreto Federal nð 2.661 de 08 de julho de 1998 e Decreto do Estado de São Paulo nð 42.056 de 06 de agosto de 1997, abordando a proibição gradual da queima dacana-de-açúcar, tende a incrementar a mecanização da colheita desta cultura. A hipótese deste trabalho é que a variável velocidade de deslocamento, reflete nos desempenhos operacionais e econômicos, de colhedoras, sob mesmas condições de campo. Este trabalho avaliou o desempenho operacional e econômico de uma colhedora em canavial sem queima prévia. As determinações de campo foram realizadas em área da Usina Dabarra SIA, no município de Barra Bonita - SP, entre os dias 7 e 17 de julhode 1998, utilizando-se a variedade R8835089 em soqueira de 3ð corte, sem queima de pré-colheita. Pelos resultados obtidos, concluiu-se que a variável velocidade de deslocamento, tem influência no desempenho operacional e econômico, assim como ae.

Protótipo de cortadora-amontoadora: desempenhos operacional e econômico em cana-de-açúcar (Saccharum spp.) com queima prévia

Author : José Mauricio Orsolini
Publisher :
ISBN 13 :
Total Pages : 79 pages
Book Rating : 4.:/5 (559 download)

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Book Synopsis Protótipo de cortadora-amontoadora: desempenhos operacional e econômico em cana-de-açúcar (Saccharum spp.) com queima prévia by : José Mauricio Orsolini

Download or read book Protótipo de cortadora-amontoadora: desempenhos operacional e econômico em cana-de-açúcar (Saccharum spp.) com queima prévia written by José Mauricio Orsolini and published by . This book was released on 2002 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: O presente trabalho teve por objetivo efetuar a análise dos Desempenhos Operacional e Econômico do protótipo de uma cortadora-amontoadora para cana-de-açúcar, comparado-os com valores obtidos na bibliografia e referentes ao corte manual realizado em cana-de-açúcar, com queima prévia e sugerir modificações no projeto mecânico do espécime. O protótipo analisado é apresentado como uma opção para a substituição da mão-de-obra responsável pelo corte dos canaviais. Para tanto foram utilizadas as metodologias propostas por Ripoli (1986) e Molina Jr. (2000). O protótipo em questão foi o Phoenix CM500iʼ, fabricado pela empresa Motocanaʼ Ltda . Os testes foram realizados na Usina Costa Pinto, localizada no município de Piracicaba, interior de São Paulo, durante o mês de julho de 2.000. Foram determinados os seguintes parâmetros: Capacidade Efetiva de Corte (média de 398,27kN.h-1 ou 40,61t.h-1); Eficácia de Manipulação (média de 93,84%); Perdas (média de 6,59%, de canas não colhidas e/ou suas frações remanescentes na soqueira); Matéria Estranha média de 3,75% e Custo estimado de R$0,194.kN-1 (ou R$1,90.t-1) na Capacidade Efetiva de Corte, o que, se comparado ao custo de R$0,306.kN-1 (ou R$3,00.t-1) do corte manual representa uma redução de 36,6% no custo da operação. Por se tratar de um protótipo, foram realizados, ainda, exercícios de projeção com base nas modificações sugeridas e referentes ao seu projeto mecânico. Estes estudos apr.

Strategies and Tools for a Sustainable Rural Rio de Janeiro

Author : Udo Nehren
Publisher : Springer
ISBN 13 : 331989644X
Total Pages : 518 pages
Book Rating : 4.3/5 (198 download)

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Book Synopsis Strategies and Tools for a Sustainable Rural Rio de Janeiro by : Udo Nehren

Download or read book Strategies and Tools for a Sustainable Rural Rio de Janeiro written by Udo Nehren and published by Springer. This book was released on 2018-08-16 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of recent developments in land, ecosystem, and water management in the Brazilian state of Rio de Janeiro. The state is located in the biodiversity hotspot of the Atlantic Forest (Mata Atlântica), a biome characterized by high biological diversity and endemism. At the same time the state of Rio de Janeiro emerged to one of the economic hubs in Latin America. This development process has been accompanied by population growth, industrialization, urbanization, as well as consumption and degradation of land and water resources. In the past years many efforts have been made to stop or at least slow down these degradation processes and restore degraded environments with the overall goal to bring together sustainable management of natural resources, nature conservation, and economic development. An overview is provided of the different strategies and tools that have been developed in the fields of agriculture, ecosystem management and biodiversity, integrated water management, land restoration, disaster risk reduction and climate change adaptation, as well as environmental governance and economic instruments. This book covers a wide spectrum from applied research to science‐policy interfaces, planning concepts, and technical tools and has a model character for other rural areas in Latin America. Target groups are scientists, practitioners, policy makers and graduate students in the field of environmental management. The different chapters are written by researchers and practitioners of the German‐Brazilian project INTECRAL (Integrated Eco Technologies and Services for a Sustainable Rural Rio de Janeiro), the rural development program Rio Rural under the state secretary for agriculture and animal husbandry, as well as invited scientists from Brazilian universities and research institutes. It bridges existing gaps between science, policies, and practice in rural development.

Sugarcane Bioethanol

Author : Luís Augusto Barbosa Cortez
Publisher :
ISBN 13 : 9788521205302
Total Pages : 994 pages
Book Rating : 4.2/5 (53 download)

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Book Synopsis Sugarcane Bioethanol by : Luís Augusto Barbosa Cortez

Download or read book Sugarcane Bioethanol written by Luís Augusto Barbosa Cortez and published by . This book was released on 2010 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Brazil, sugarcane ethanol supplied, in 2009, 17.6 % of the energy for land transportation (excluding railroads)and about 55% of the total energy supplied by liquid fuel for Otto cycle engines. Besides the lower production costs ethanol produced from sugarcane in Brazil has another important advantage: in Central-South Brazil only 1 unit of fossil energy is used for each 8-9 units of energy produced by ethanol from sugarcane. Carbon emissions reduction also benefits from sugarcane ethanol: for each cubic meter of ethanol used as fuel, there is net saving of around 2 t CO2 not emitted to the atmosphere while, at the same time, no SO2 is emitted. Sugarcane was introduced in Brazil in 1532. The "Brazilian model" of producing concomitantly sugar and ethanol, brought important technical benefits and made possible an outstanding increase in the competitiveness in the international market for sugar and ethanol. Today about 50% of the sucrose of sugarcane produced in the country is directed to the production of sugar while another half is used to produce Ethanol. Industrial and academic R&D has helped to increase the productivity of ethanol steadily over the past 35 years, at a rate of 3.2% per year. Productivity gains implied savings of planted area by a factor of 2.6. In 2009/2010 the area planted with sugarcane for Ethanol production was 4.2 Mha, amounting to 1% of the total arable land available in Brazil. About 60% of the Ethanol produced in Brazil comes from the State of Sao Paulo, where the productivity is the highest (around 86 t/ha.year). Most of the recent expansion is happening in the center-west region of the country, in degraded pasture lands. The FAPESP Program for Research on Bioenergy, BIOEN, aims at articulating public and private R&D, using academic and industrial laboratories to advance and apply knowledge in fields related to ethanol production in Brazil. The BIOEN Program has a solid core for supporting academic exploratory research activities that will generate new knowledge and form scientists and professionals essential for advancing industry capacity in ethanol related technologies. On top of this, BIOEN includes partnerships with industry for cooperative R&D activities between industrial and academic laboratories, which are to be co-funded by FAPESP and industry.Federal agencies, such as CNPq, will also co-fund the research.

Sugarcane Biorefinery, Technology and Perspectives

Author : Fernando Santos
Publisher : Academic Press
ISBN 13 : 0128142375
Total Pages : 305 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Sugarcane Biorefinery, Technology and Perspectives by : Fernando Santos

Download or read book Sugarcane Biorefinery, Technology and Perspectives written by Fernando Santos and published by Academic Press. This book was released on 2019-11-21 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sugarcane Biorefinery, Technology and Perspectives provides the reader with a current view of the global scenario of sugarcane biorefinery, launching a new expectation on this important crop from a chemical, energy and sustainability point-of-view. The book explores the existing biorefinery platforms that can be used to convert sugarcane to new high value added products. It also addresses one of today's most controversial issues involving energy cane, in addition to the dilemma "sugar cane vs. food vs. the environment", adding even more value in a culture that is already a symbol of case study around the world. Focusing on the chemical composition of sugarcane, and the production and processes that optimize it for either agricultural or energy use, the book is designed to provide practical insights for current application and inspire the further exploration of options for balancing food and fuel demands. - Presents the productive chain of sugarcane and its implications on food production and the environment - Includes discussions on the evolution of the sustainable development of the sugar-energy sector - Contextualizes and premises for the technological road mapping of energy-cane - Provides information on new technologies in the sugar-energy sector

Sugarcane

Author : Fernando Santos
Publisher : Academic Press
ISBN 13 : 0128025603
Total Pages : 493 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Sugarcane by : Fernando Santos

Download or read book Sugarcane written by Fernando Santos and published by Academic Press. This book was released on 2015-05-16 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sugarcane: Agricultural Production, Bioenergy and Ethanol explores this vital source for "green" biofuel from the breeding and care of the plant all the way through to its effective and efficient transformation into bioenergy. The book explores sugarcane's 40 year history as a fuel for cars, along with its impressive leaps in production and productivity that have created a robust global market. In addition, new prospects for the future are discussed as promising applications in agroenergy, whether for biofuels or bioelectricity, or for bagasse pellets as an alternative to firewood for home heating purposes are explored. Experts from around the world address these topics in this timely book as global warming continues to represent a major concern for both crop and green energy production. - Focuses on sugarcane production and processing for bioenergy - Provides a holistic approach to sugarcane's potential – from the successful growth and harvest of the plant to the end-use product - Presents important information for "green energy" options

On a Sustainable Future of the Earth's Natural Resources

Author : Mu. Ramkumar
Publisher : Springer Science & Business Media
ISBN 13 : 3642329179
Total Pages : 556 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis On a Sustainable Future of the Earth's Natural Resources by : Mu. Ramkumar

Download or read book On a Sustainable Future of the Earth's Natural Resources written by Mu. Ramkumar and published by Springer Science & Business Media. This book was released on 2013-03-21 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: On a Sustainable Future of the Earth’s Natural Resources is divided into three sections, with individual chapters contributed by experts on diff erent facets of the earth sciences, natural resources management and related issues. The first section focuses on the status of Earth’s resources; land, water, biota and atmosphere. Reviews on the rate of exploitation and the need to conserve these resources for future sustenance are also covered in this section. Th e following section includes chapters elucidating environmental, ecological, climatological and anthropological pressures on sustained nourishment with the Earth’s resources. The last section describes management practices, issues and perspectives on sociological, legal, administrative, ICT and strategic efforts that need to be implemented in order to sustain our natural resources. This book covers a broad spectrum of the Earth’s resources and sustenance, offering a comprehensive perspective on their past, present and future.

Stumbling Toward Sustainability

Author : John C. Dernbach
Publisher : Environmental Law Institute
ISBN 13 : 9781585760367
Total Pages : 1038 pages
Book Rating : 4.7/5 (63 download)

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Book Synopsis Stumbling Toward Sustainability by : John C. Dernbach

Download or read book Stumbling Toward Sustainability written by John C. Dernbach and published by Environmental Law Institute. This book was released on 2002 with total page 1038 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1992, at the United Nations Conference on Environment and Development in Rio de Janeiro, the nations of the world agreed to implement an ambitious plan for ecologically sustainable human development. This book is a comprehensive review of U.S. efforts to achieve such development since Rio. The U.S. has unquestionably begun to take steps toward sustainable development. Yet the nation is now far from being a sustainable society, and in many respects is farther away than it was in 1992. Nevertheless, legal and policy tools are available to put the U.S. on a direct path to sustainability. This book brings together 42 distinguished experts from a variety of backgrounds and academic disciplines. It is among the most thorough assessments ever conducted of U.S. law and policy concerning the environment.

Connectivity Conservation Management

Author : Graeme Worboys
Publisher : Earthscan
ISBN 13 : 1844076032
Total Pages : 417 pages
Book Rating : 4.8/5 (44 download)

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Book Synopsis Connectivity Conservation Management by : Graeme Worboys

Download or read book Connectivity Conservation Management written by Graeme Worboys and published by Earthscan. This book was released on 2010 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2010. Routledge is an imprint of Taylor & Francis, an informa company.

The New Rurality

Author :
Publisher : IICA
ISBN 13 : 9789290394525
Total Pages : 42 pages
Book Rating : 4.3/5 (945 download)

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Book Synopsis The New Rurality by :

Download or read book The New Rurality written by and published by IICA. This book was released on with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Pricing the Planet

Author : Peter Herman May
Publisher : Columbia University Press
ISBN 13 : 9780231101752
Total Pages : 244 pages
Book Rating : 4.1/5 (17 download)

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Book Synopsis Pricing the Planet by : Peter Herman May

Download or read book Pricing the Planet written by Peter Herman May and published by Columbia University Press. This book was released on 2000-08-15 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: An outgrowth of the 1992 Symposium and Exhibit of Environmental Technologies (ECOTECH), held in Rio de Janiero as part of the UN Conference on Environment and Development (UNCED), this book addresses our ecological future and explores alternatives to mainstream solutions.

Industrial Uses of Biomass Energy

Author : Frank Rosillo-Calle
Publisher : CRC Press
ISBN 13 : 0203194039
Total Pages : 304 pages
Book Rating : 4.2/5 (31 download)

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Book Synopsis Industrial Uses of Biomass Energy by : Frank Rosillo-Calle

Download or read book Industrial Uses of Biomass Energy written by Frank Rosillo-Calle and published by CRC Press. This book was released on 2000-09-13 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Industrial Uses of Biomass Energy demonstrates that energy-rich vegetation, biomass, is a key renewable energy resource for the future. Brazil, uniquely, has a recent history of large-scale biomass industrial uses that makes it a specially important test-bed both for the development of biomass technology and its utilisation, and for understanding how this is shaped by political and socio-economic forces. The book analyses the cause for this and the alternatives. It is argued that Brazil's experience with the development for industrial biomass use provides wider lessons and insights in the context of the international movement for sustainable economic development. This book is an interdisciplinary, multi-author work, based upon a recently completed international study by Brazilian and British experts and will prove a valuable reference to all those working in this field.