Alternativas De Manejo De Pastagem Para Melhor Aproveitamento Do Nitrogenio Do Solo

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Alternativas de manejo de pastagem para melhor aproveitamento do nitrogênio do solo

Author : R. M. Schunke
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (78 download)

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Book Synopsis Alternativas de manejo de pastagem para melhor aproveitamento do nitrogênio do solo by : R. M. Schunke

Download or read book Alternativas de manejo de pastagem para melhor aproveitamento do nitrogênio do solo written by R. M. Schunke and published by . This book was released on 2001 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neste documento propõe-se que um manejo de pastagem eficiente podera aumentar o aporte de nitrogênio a esses sistemas de produção, garantindo a sua sustentabilidade. Tal manejo envolve a escolha da espécie forrageira apropriada e a manutenção da fertilidade do solo, aliada ao aumento da biodiversidade que pode ser alcançada com o uso de leguminosas fixadoras de nitrogênio atmosférico. Envolve também um manejo animal adequado no que se refere a carga e ao diferimento dela. Esse conjunto de ações, que possibilitarão a regulação da mineralização do N em diversos sistemas de utilização das pastagens, por meio da manipulação das entradas e saídas no N nos diversos compartimentos do ciclo do elemento, será o caminho para se garantir a sustentabilidade dessas pastagens ao longo do tempo.

Grassland Productivity and Ecosystem Services

Author : Gilles Lemaire
Publisher : CABI
ISBN 13 : 1845938097
Total Pages : 305 pages
Book Rating : 4.8/5 (459 download)

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Book Synopsis Grassland Productivity and Ecosystem Services by : Gilles Lemaire

Download or read book Grassland Productivity and Ecosystem Services written by Gilles Lemaire and published by CABI. This book was released on 2011 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 28 chapters with emphasis on the interactive nature of the relationships between the soil, plant, animal and environmental components of grassland systems, both natural and managed. It analyses the present knowledge and the future trends of research for combining the classical view of grasslands, as a resource for secure feeding of an increasing human population, with the more recent perspective of the contribution of grasslands to the mitigation of environmental impacts and biodiversity erosion as consequences of human society activities. The chapters are organized within five sections dealing with the different functions and the main ecosystem services expected from grasslands: (i) domestic herbivore feeding and animal production; (ii) the regulation of biogeochemical cycles and its consequences for the environment; (iii) dynamics of biodiversity hosted by grasslands; (iv) integration of grasslands within sustainable animal production systems; and (v) interactions of grassland areas with other land use systems at the landscape level.

Acta Scientiarum

Author :
Publisher :
ISBN 13 :
Total Pages : 582 pages
Book Rating : 4.A/5 ( download)

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Book Synopsis Acta Scientiarum by :

Download or read book Acta Scientiarum written by and published by . This book was released on 2001 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Acta amazonica

Author :
Publisher :
ISBN 13 :
Total Pages : 898 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Acta amazonica by :

Download or read book Acta amazonica written by and published by . This book was released on 2008 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each issue to contain material in each of seven subject fields: botany, forestry research, environmental sciences, phytochemistry, tropical medicine, zoology and technology.

NUTRITIONAL PHYSIOLOGY OF THE HORSE.

Author : JULIAN. HILL
Publisher :
ISBN 13 : 9781789182958
Total Pages : 0 pages
Book Rating : 4.1/5 (829 download)

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Book Synopsis NUTRITIONAL PHYSIOLOGY OF THE HORSE. by : JULIAN. HILL

Download or read book NUTRITIONAL PHYSIOLOGY OF THE HORSE. written by JULIAN. HILL and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Effect of Incentives in the Trial of a New Legume for Pastures in Brazil

Author : José Heitor Vasconcellos
Publisher :
ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis The Effect of Incentives in the Trial of a New Legume for Pastures in Brazil by : José Heitor Vasconcellos

Download or read book The Effect of Incentives in the Trial of a New Legume for Pastures in Brazil written by José Heitor Vasconcellos and published by . This book was released on 1995 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

The Silvicultural Basis For Agroforestry Systems

Author : Florencia Montagnini
Publisher : CRC Press
ISBN 13 : 9781420049466
Total Pages : 292 pages
Book Rating : 4.0/5 (494 download)

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Book Synopsis The Silvicultural Basis For Agroforestry Systems by : Florencia Montagnini

Download or read book The Silvicultural Basis For Agroforestry Systems written by Florencia Montagnini and published by CRC Press. This book was released on 1999-12-20 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the Green Revolution in many developing countries, agroforestry systems tended to reflect modern agricultural systems by their intensive use of fertilizers, pesticides, and site modifications to fit the desired crop. Since the 1980's, agroforestry has learned from traditional indigenous systems to work more closely with the fertility of marginal lands through the use of less intensive cultivation and fallow periods. True to its title, this volume provides a silvicultural framework for thinking about the design and practice of agroforestry systems. Unlike many general agroforestry books, The Silvicultural Basis for Agroforestry Systems emphasizes research and thoughts from a forestry perspective rather than an agricultural one. Many of the examples used in this reference are based on the ecological theory of forests that concern the competition for resources of plant-plant and plant-animal mixtures. This guide also uses the knowledge gained about the temporal and spatial dynamic and productivity of forests as the basis for silvicultural applications in agroforestry systems. The Silvicultural Basis for Agroforestry Systems contains three parts:

Proximal Soil Sensing

Author : Raphael A. Viscarra Rossel
Publisher : Springer Science & Business Media
ISBN 13 : 9048188598
Total Pages : 440 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Proximal Soil Sensing by : Raphael A. Viscarra Rossel

Download or read book Proximal Soil Sensing written by Raphael A. Viscarra Rossel and published by Springer Science & Business Media. This book was released on 2010-07-25 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on developments in Proximal Soil Sensing (PSS) and high resolution digital soil mapping. PSS has become a multidisciplinary area of study that aims to develop field-based techniques for collecting information on the soil from close by, or within, the soil. Amongst others, PSS involves the use of optical, geophysical, electrochemical, mathematical and statistical methods. This volume, suitable for undergraduate course material and postgraduate research, brings together ideas and examples from those developing and using proximal sensors and high resolution digital soil maps for applications such as precision agriculture, soil contamination, archaeology, peri-urban design and high land-value applications, where there is a particular need for high spatial resolution information. The book in particular covers soil sensor sampling, proximal soil sensor development and use, sensor calibrations, prediction methods for large data sets, applications of proximal soil sensing, and high-resolution digital soil mapping. Key themes: soil sensor sampling – soil sensor calibrations – spatial prediction methods – reflectance spectroscopy – electromagnetic induction and electrical resistivity – radar and gamma radiometrics – multi-sensor platforms – high resolution digital soil mapping - applications Raphael A. Viscarra Rossel is a scientist at the Commonwealth Scientific and Industrial Research Organisation (CSIRO) of Australia. Alex McBratney is Pro-Dean and Professor of Soil Science in the Faculty of Agriculture Food & Natural Resources at the University of Sydney in Australia. Budiman Minasny is a Senior Research Fellow in the Faculty of Agriculture Food & Natural Resources at the University of Sydney in Australia.

Cycles of Soils

Author : F. J. Stevenson
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 408 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Cycles of Soils by : F. J. Stevenson

Download or read book Cycles of Soils written by F. J. Stevenson and published by Wiley-Interscience. This book was released on 1986-01-17 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: The carbon cycle. Carbon balance of the soil and role of organic matter in soil fertility. Environmental aspects of the soil carbon cycle. The nitrogen cycle in soil: global and ecological aspects. The international cycle of nitrogen in soil. Impact of nitrogen on health and the environment. The phosporus cycle. The sulfur cycle. The micronutrient cycle.

Carbon Sequestration in Agricultural Soils

Author : Alessandro Piccolo
Publisher : Springer Science & Business Media
ISBN 13 : 3642233856
Total Pages : 316 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Carbon Sequestration in Agricultural Soils by : Alessandro Piccolo

Download or read book Carbon Sequestration in Agricultural Soils written by Alessandro Piccolo and published by Springer Science & Business Media. This book was released on 2012-01-11 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compilation of techniques, methodologies and scientific data arises from a four-year Italian research project, which took place at university research stations in Turin, Piacenza, Naples and Potenza. Soil Organic Matter (SOM) represents an active and essential pool of the total organic carbon on the planet. Consequently, even small changes in this SOM carbon pool may have a significant impact on the concentration of atmospheric CO2. Recent new understanding of the chemical nature of SOM indicates that innovative and sustainable technologies may be applied to sequester carbon in agricultural soils. Overall results of the project have been applied to develop an innovative model for the prediction and description, both quantitatively and qualitatively, of carbon sequestration in agricultural soils. This book provides experts in different areas of soil science with a complete picture of the effects of new soil management methods and their potentials for practical application in farm management.

The Ecology and Management of Grazing Systems

Author : John Hodgson
Publisher : Cabi
ISBN 13 : 9780851993027
Total Pages : 0 pages
Book Rating : 4.9/5 (93 download)

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Book Synopsis The Ecology and Management of Grazing Systems by : John Hodgson

Download or read book The Ecology and Management of Grazing Systems written by John Hodgson and published by Cabi. This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The understanding and management of land resources used by grazing animals are of major importance to ecologists and agricultural and environmental scientists. This book fills a major gap in the market by synthesising a range of perspectives on grazing systems, drawn from plant science, animal science and ecology. It outlines the principles of herbage growth and competition; of animal nutrition and grazing behavior; and of the interactions of plant and animal factors that are central to an understanding of grazing systems. Chapters on the management of grazing systems cover both intensive and extensive systems (including rangelands) from all major agroecological zones of the world. The book is written by leading authorities from the USA, UK, Australia, New Zealand, South Africa, Israel and France. It represents a major contribution to the literature for advanced students and research workers concerned with plant science (especially grasslands), animal science (especially ruminants), and natural and agricultural ecosystems.

Australian Journal of Agricultural Research

Author :
Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (6 download)

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Book Synopsis Australian Journal of Agricultural Research by :

Download or read book Australian Journal of Agricultural Research written by and published by . This book was released on 2000 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Grazing Management

Author : John Hodgson
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Grazing Management by : John Hodgson

Download or read book Grazing Management written by John Hodgson and published by . This book was released on 1990-08-15 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text considers grazing management from the viewpoint of the ecology of grazing systems and focuses on the interrelationships between plant and animal populations which affect the stability of such systems, and the output of animal products from them. Relates the steps in the production process to the grassy surface characteristics that influence plant and animal behavior and uses these relationships to create a practical framework for management decisions.

Hemispherical Photography in Forest Science: Theory, Methods, Applications

Author : Richard A. Fournier
Publisher : Springer
ISBN 13 : 9402410988
Total Pages : 313 pages
Book Rating : 4.4/5 (24 download)

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Book Synopsis Hemispherical Photography in Forest Science: Theory, Methods, Applications by : Richard A. Fournier

Download or read book Hemispherical Photography in Forest Science: Theory, Methods, Applications written by Richard A. Fournier and published by Springer. This book was released on 2017-05-11 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents practical information about hemispherical photography from the perspectives of field data acquisition, image processing and information retrieval methods. This book is organized into three sections. The first section describes what is hemispherical photography and what are the fundamental elements of forest structure and light interactions within the forest canopy. The second section provides practical information about the equipment, procedures and tools for procuring, processing and analyzing hemispherical photographs. Armed with this information, the third section describes several applications of hemispherical photographs to forestry and natural resource assessment. The book concludes with a discussion about modelling tools and future directions of this rapidly growing field. There is currently no information source on the market that has this comprehensive range of topics combined in a single book. The book will appeal to academics, graduate students, natural resource professionals and researchers alike.

Grass

Author : Alan Hopkins
Publisher : Wiley-Blackwell
ISBN 13 : 9780632050178
Total Pages : 456 pages
Book Rating : 4.0/5 (51 download)

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Book Synopsis Grass by : Alan Hopkins

Download or read book Grass written by Alan Hopkins and published by Wiley-Blackwell. This book was released on 2000-01-28 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The management of grassland and its role in the countryside has changed considerably during the 15 years since the first edition of Grass was published. The book has therefore been completely reorganised and rewritten to reflect these developments and the corresponding changes to the undergraduate curriculum. The emphasis will continue to be the agricultural management of grassland and will include recent developments in agronomy, nutrition, grazing, forage preservation, and the changing nature of farm economics in relation to changes in the basis for farm support. The scope of the book will reflect recent policy and legislative changes affecting grassland and will therefore include the role of grassland in nature conservation and landscape, grassland and amenity uses, the impact of grassland farming on the environment, and grass in organic farming.

Physiology of Crop Production

Author : N.K. Fageria
Publisher : CRC Press
ISBN 13 : 9781560222897
Total Pages : 366 pages
Book Rating : 4.2/5 (228 download)

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Book Synopsis Physiology of Crop Production by : N.K. Fageria

Download or read book Physiology of Crop Production written by N.K. Fageria and published by CRC Press. This book was released on 2006-05-16 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This single volume explores the theoretical and the practical aspects of crop physiological processes around the world The marked decrease over the past century in the land available for crop production has brought about mounting pressure to increase crop yields, especially in developing nations. Physiology of Crop Production provides cutting-edge research and data for complete coverage of the physiology of crop production, all in one source, right at your fingertips. This valuable reference gives the extensive in-depth information soil and crop professionals need to maximize crop productivity anywhere the world. Leading soil and plant scientists and researchers clearly explain theory, practical applications, and the latest advances in the field. Crop physiology is a vital science needed to understand crop growth and development to facilitate increases of plant yield. Physiology of Crop Production presents a wide range of information and references from varying regions of the world to make the book as complete and broadly focused as possible. Discussion in each chapter is supported by experimental data to make this book a superb resource that will be used again and again. Chapter topics include plant and root architecture, growth and yield components, photosynthesis, source-sink relationship, water use efficiency, crop yield relative to water stress, and active and passive ion transport. Several figures and tables accompany the extensive referencing to provide a detailed, in-depth look at every facet of crop production. Physiology of Crop Production explores management strategies for: ideal plant architecture maximizing root systems ideal yield components maximizing photosynthesis maximizing source-sink relationship sequestration of carbon dioxide reducing the effects of drought improving N, P, K, Ca, Mg, and S nutrition improving micronutrient uptake Physiology of Crop Production is an essential desktop resource for plant physiologists, soil and crop scientists, breeders, agronomists, agronomy administrators in agro-industry, educators, and upper-level undergraduate and graduate students.