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Determinacao Da Eficiencia De Uso Da Agua Na Parcela De Irrigacao No Perimetro Irrigado California Em Sergipe
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Book Synopsis Determinação da eficiência de uso da água na parcela de irrigação, no perímetro irrigado Califórnia, em Sergipe by : JULIO ROBERTO ARAUJO DE AMORIM AMORIM
Download or read book Determinação da eficiência de uso da água na parcela de irrigação, no perímetro irrigado Califórnia, em Sergipe written by JULIO ROBERTO ARAUJO DE AMORIM AMORIM and published by . This book was released on 2010 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determinacao da eficiencia de irrigacao, a nivel de parcela, no Projeto de Irrigacao Bebedouro- Petrolina, Pernambuco by : M. V. P. Leal
Download or read book Determinacao da eficiencia de irrigacao, a nivel de parcela, no Projeto de Irrigacao Bebedouro- Petrolina, Pernambuco written by M. V. P. Leal and published by . This book was released on 1979 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Avaliar a eficiencia de irrigacao, ao nivel de parcela, no Projeto de Irrigacao de Bebedouro em Petrolina. Tambem foram analisados os efeitos da vazao e da declividade dos sulcos sobre a eficiencia de irrigacao, com e sem reducao da vazao inicial. Para estimar os parametros das equacoes de infiltracao e avanco da agua no sulco, foram realizados testes em areas (parcelas de colonos) selecionados no PIB e na Estacao Experimental de Bebedouro. Na selecao das areas observaram-se dois criterior basicos: primeiro, em cada parcela escolhida deveria estar sendo cultivado tomate, melao, melancia, visto serem estas culturas de maior importancia economica do PIB. As parcelas tambem deveriam, conforme o segundo criterio, estar localizadas nas unidades de solo, mais repressentativas do PIB, no casa 37AA, 37AB e 37BB.
Book Synopsis Avaliação do manejo de Águas no perímetro irrigado de Bebedouro, Petrolina, PE by : Carlos Reeder Valdivieso Salazar
Download or read book Avaliação do manejo de Águas no perímetro irrigado de Bebedouro, Petrolina, PE written by Carlos Reeder Valdivieso Salazar and published by . This book was released on 1985 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: O uso pouco racional da agua de irrigacao (condicoes de mau manejo de agua) tem originado a formacao de lencol freatico que se aproxima da superficie do solo em lugares e epocas determinadas, criando condicoes improprias ou desvangajosas para o desenvolvimento das culturas e limitando a sua produtividade. O presente trabalho refere-se a quantificacao de uso de agua no Perimetro Irrigado de Bebedouro, em Petrolina,PE, avaliando as eficiencias de irrigacao nos diferentes niveis de conducao, distribuicao e aplicacao e que permitem determinar a grandeza da quantidade de agua perdida que contribui para o problema de drenagem. Dessa forma sao conferidas frequencias de irrigacao inadequadas que mantem um regime de umidade tambem inadequado na zona radicular, em areas de alto lencol freatico. A eficiencia de irrigacao ao nivel de perimetro e de 25%, devido principalmente a perdas de conducao ocasionadas pelo mau estado de conservacao dorevestimento de canais e a perdas ocorridas no sistema de distribuicao. A eficiencia de aplicacao, ao nivel de parcela, esta em torno de 40%. A pouca retencao de umidade dos solos demanda irrigacoes frequentes, mas o controle de umidade no perfil indica a necessidade de racionalizar os intervalos e volumes de rega, principalmente quando ja se tem contribuicao de umidade desde o lencol freatico.
Book Synopsis Determinação de eficiência de irrigação, a nível de parcela, no projeto de irrigação bebedouro by : M.V.P. Leal
Download or read book Determinação de eficiência de irrigação, a nível de parcela, no projeto de irrigação bebedouro written by M.V.P. Leal and published by . This book was released on 1977 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eficiencia de irrigacao por sulcos ao do nivel de parcela no Sistema irrigado de Bebedouro by : H. O. Carvalho Guerra
Download or read book Eficiencia de irrigacao por sulcos ao do nivel de parcela no Sistema irrigado de Bebedouro written by H. O. Carvalho Guerra and published by . This book was released on 1988 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Este trabalho foi conduzido no Perimetro Irrigado de Bebedouro, Petrolina, PE, no periodo de setembro/dezembro de 1983. O trabalho constou da avaliacao do manejo de agua em tres lotes distintos de colonos. Cada lote foi aleatoriamente distribuido dentro de uma mesma mancha de solo, de modo a contemplar as unidades 37 AA, 37 AB e 37 BB de solo do tipo Latossolo vermelho-amarelo. Selecionou-se a cultura do feijao caupi (vigna sinensis) por ser uma cultura base neste periodo. Em cada lote, fez-se tres coletas de dados ao longo do ciclo fenologico do feijao, assim descriminadas: a primeira, em outubro(durante o estagio inicial do feijao) a segunda, em novembro(inicio da floracao) e a terceira, em dezembro (final do ciclo). Constatou-se que as vazoes medias obtidas nas unidades 37 AA e 37 BB foram em geral maiores que as maximas nÆo erosivas, porem menores que a maxima nao erosiva na unidade 37 AB. As declividades dos sulcos variam de 0,33 a 1,30%. A maior eficiencia de aplicacao(53,52%) foi alcancada na unidade 37 AB com 0,33% de declividade. Na unidade 37 BB com declividade de 0,9 e 1,3%, as eficiencias de aplicacao foram de 33,10 e 25,68%, respectivamente.
Book Synopsis Fertilizing for High Yield and Quality by : Lindbergue Araújo Crisóstomo
Download or read book Fertilizing for High Yield and Quality written by Lindbergue Araújo Crisóstomo and published by . This book was released on 2007 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acerola; Banana; Cashew: dwarf variety; Citrus; Coconut: green dwarf variety; Guava; Mango; Papaya; Passion-fruit; Pineapple; Soursop.
Book Synopsis Soil Compaction Studies by : Timothy Shaun Stafford Conlin
Download or read book Soil Compaction Studies written by Timothy Shaun Stafford Conlin and published by . This book was released on 1996 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first two experiments described in this report were designed to identify early signs of compaction-related stress in lodgepole pine (Pinus contorta), Douglas-fir (Pseudotsuga menziesii), and white spruce (Picea glauca). A secondary objective was to examine the interaction of soil moisture and compaction on initial seedling growth. The third experiment was designed to examine the efforts of soil compaction on the composition of the soil atmosphere, and is continuing.
Book Synopsis The Biogeochemistry of the Amazon Basin by : Michael E. McClain
Download or read book The Biogeochemistry of the Amazon Basin written by Michael E. McClain and published by Oxford University Press. This book was released on 2001-11-08 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a complex assemblage of largely intact ecosystems that support the earth's greatest diversity of life, the Amazon basin is a focal point of international scientific interest. And, as development and colonization schemes transform the landscape in increasing measure, scientists from around the world are directing attention to questions of regional and global significance. Some of these qustions are: What are the fluxes of greenhouse gases across the atmospheric interface of ecosystems? How mush carbon is stored in the biomass and soils of the basin? How are elements from the land transferred to the basin's surface waters? What is the sum of elements transferred from land to ocean, and what is its marine "fate"? This book of original chapters by experts in chemical and biological oceanography, tropical agronomy and biology, and the atmospheric sciences will address these and other important questions, with the aim of synthesizing the current knowledge of biochemical processes operating within and between the various ecosystems in the Amazon basin.
Book Synopsis Hunting the Essex by : Midshipman Allen Gardiner
Download or read book Hunting the Essex written by Midshipman Allen Gardiner and published by Seaforth Publishing. This book was released on 2013-06-30 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: In February 1813 the British frigate Phoebe set out on a secret mission that would involve sailing halfway around the world to attack American settlements in the Pacific Northwest. The United States, frustrated at the treatment of its shipping by the combatants in the Napoleonic Wars, had finally opened hostilities against the British in the previous June. From the American perspective the War of 1812 began with disasters in its invasion of Canada, but against all expectations the infant US Navy had scored significant victories at sea. The most strategically significant of these was the campaign by the frigate USS Essex, which had almost annihilated the lucrative British whaling trade in the south Pacific. Therefore, Phoebe was diverted to hunt down and destroy this highly successful commerce-raider. After an epic search, Phoebe tracked her prey to neutral Valparaiso where the American frigate was blockaded and,in a very bloody battle, eventually captured. The American captain, David Porter, published a self-serving account of his actions which ever since has mired the battle in controversy, so this British naval eyewitness account is an important counter-balance. It is one of the lesser-known campaigns of a war which is currently celebrating its bicentenary, but its inherent drama inspired the plot of Patrick O'Brian's novel The Far Side of the World, although in its movie adaptation Master & Commander the American frigate is transformed into a French privateer.
Book Synopsis World Energy Outlook 2015 by : International Energy Agency
Download or read book World Energy Outlook 2015 written by International Energy Agency and published by . This book was released on 2015-11-25 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: The precipitous fall in oil prices, continued geopolitical instability and the ongoing global climate negotiations are witness to the dynamic nature of energy markets. In a time of so much uncertainty, understanding the implications of the shifting energy landscape for economic and environmental goals and for energy security is vital. The World Energy Outlook 2015 (WEO-2015) will present updated projections for the evolution of the global energy system to 2040, based on the latest data and market developments, as well as detailed insights on the prospects for fossil fuels, renewables, the power sector and energy efficiency and analysis on trends in CO2 emissions and fossil-fuel and renewable energy subsidies.
Book Synopsis The Palms of the Amazon by : Andrew Henderson
Download or read book The Palms of the Amazon written by Andrew Henderson and published by . This book was released on 1995 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The palms are among the most abundant, diverse, and important families of plants found in the Amazon. Based on extensive field work, this book provides a systematic treatment of all palms that occur naturally in the Amazon region. Each species is exhaustively described with reviews of their distribution, habitat, and ecology. Introductory chapters describe the physical setting of the Amazon region as well as on the biogeography and ecology of the palm family. This first modern treatment of the 135 species of Amazon palms provides a definitive account of their ecology, uses, and biogeography. It will be welcomed by students, teachers, and researchers of botany, ecology, agronomy, and conservation biology.
Book Synopsis Teaching as a Subversive Activity by : Neil Postman
Download or read book Teaching as a Subversive Activity written by Neil Postman and published by Laurel. This book was released on 1987 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Renewable Energy Sources and Climate Change Mitigation by : Ottmar Edenhofer
Download or read book Renewable Energy Sources and Climate Change Mitigation written by Ottmar Edenhofer and published by Cambridge University Press. This book was released on 2011-11-21 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Intergovernmental Panel on Climate Change Special Report (IPCC-SRREN) assesses the potential role of renewable energy in the mitigation of climate change. It covers the six most important renewable energy sources - bioenergy, solar, geothermal, hydropower, ocean and wind energy - as well as their integration into present and future energy systems. It considers the environmental and social consequences associated with the deployment of these technologies, and presents strategies to overcome technical as well as non-technical obstacles to their application and diffusion. SRREN brings a broad spectrum of technology-specific experts together with scientists studying energy systems as a whole. Prepared following strict IPCC procedures, it presents an impartial assessment of the current state of knowledge: it is policy relevant but not policy prescriptive. SRREN is an invaluable assessment of the potential role of renewable energy for the mitigation of climate change for policymakers, the private sector, and academic researchers.
Book Synopsis Tropical Wetland Management by : Antonio Augusto Rossotto Ioris
Download or read book Tropical Wetland Management written by Antonio Augusto Rossotto Ioris and published by Ashgate Publishing, Ltd.. This book was released on 2012 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book recent scientific development and politico-institutional experiences related to the conservation of the South-American Pantanal are explored in relation to what is happening in other tropical wetland areas of international importance such as the Everglades in North America and the Okavango in Africa, as well as considering the European experience. An interdisciplinary group of authors examines the need to establish a constructive dialogue between scientists, policy-makers and local stakeholders and outline a future research agenda.
Book Synopsis Central Amazon Floodplain by : Wolfgang J. Junk
Download or read book Central Amazon Floodplain written by Wolfgang J. Junk and published by . This book was released on 2000 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents a coherent analysis of the ecological situation, the history of land occupation, the different forms of resource utilization, the socio-economic situation of the population, & the ecological threats of human activities on the Amazon floodplain. Cost-benefit analyses of different forms of land use are compared with market demands & environmental impacts. Conflicts of interest between different stake holders (e.g., smallholders & ranchers, professional & subsistence fishermen) are described. A chapter about environmental legislation & its deficiencies points to the need for additional regulations to avoid further conflicts of interest & negative impact of human activities on the ecosystem. This is the first book that deals with sustainable management of a tropical wetland with coherent & new data sets in an interdisciplinary approach, along with a strong conceptional background.
Book Synopsis An Inventory of Brazilian Wetlands by : Antônio Carlos Sant'Ana Diegues
Download or read book An Inventory of Brazilian Wetlands written by Antônio Carlos Sant'Ana Diegues and published by IUCN. This book was released on 1994 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to wetlands of Brazil; Brazilian wetlands: natural wetlands, man-made wetlands, protected areas, environmental legislation, wetlands administration; The inventory; Amazon basin; Tocantins-Araguaia basin; Sao Francisco river basin; Plantina basin; Uruguay river basin; Parana river basin; Paraguay river basin; Pantanais Mato-Grossense; Pantanal Mato-Grossense National Park; Cara-Cara Federal Biological Reserve; Taiama (or Taima) Ecological Station; Summary of the socio-economic and environmental situation of the Paraguay basin; Northeast Basin; East basin; Southeastern-southern basin.
Book Synopsis Solar Energy Perspectives by : Cédric Philibert
Download or read book Solar Energy Perspectives written by Cédric Philibert and published by OECD. This book was released on 2011 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 90 minutes, enough sunlight strikes the earth to provide the entire planet's energy needs for one year. While solar energy is abundant, it represents a tiny fraction of the world's current energy mix. But this is changing rapidly and is being driven by global action to improve energy access and supply security, and to mitigate climate change. Around the world, countries and companies are investing in solar generation capacity on an unprecedented scale, and, as a consequence, costs continue to fall and technologies improve. This publication gives an authoritative view of these technologies and market trends, in both advanced and developing economies, while providing examples of the best and most advanced practices. It also provides a unique guide for policy makers, industry representatives and concerned stakeholders on how best to use, combine and successfully promote the major categories of solar energy: solar heating and cooling, photovoltaic and solar thermal electricity, as well as solar fuels. Finally, in analysing the likely evolution of electricity and energy-consuming sectors - buildings, industry and transport - it explores the leading role solar energy could play in the long-term future of our energy system.
