Utilizaci N De Las Rocas Fosf Ricas Para Una Agricultura Sostenible
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Utilizaci N De Las Rocas Fosf Ricas Para Una Agricultura Sostenible
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Author : Food and Agriculture Organization of the United Nations
language : es
Publisher: Fao
Release Date : 2007-09
Utilizaci N De Las Rocas Fosf Ricas Para Una Agricultura Sostenible written by Food and Agriculture Organization of the United Nations and has been published by Fao this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-09 with Technology & Engineering categories.
Extensas investigaciones sobre el potencial agronómico y la efectividad de las rocas fosfóricas como fuente de fósforo han sido realizadas especialmente en África, Asia y América Latina y el Caribe. Existe una gran cantidad de información dispersa en informes y publicaciones de diversa índole. Este Boletín describe de manera detallada los tópicos principales relacionados con la utilización de las rocas fosfóricas en la agricultura, incluyendo los últimos resultados de la investigación sobre el tema y proporciona directivas para su empleo como roca fosfórica de aplicación directa a los suelos ácidos de las zonas tropicales y subtropicales.
Environmental Biology
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Author : Allan M. Jones
language : en
Publisher: Routledge
Release Date : 2006-12-05
Environmental Biology written by Allan M. Jones and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-12-05 with Science categories.
Environmental Biology offers an accessible introduction to the core elements of biology and the biosphere. With balanced coverage of acquatic and terrestrial examples throughout, the text builds logically to present a clear understanding of the fundamental processes of life before examining its more complex components, namely individuals, populations, communities and ecosystems. A knowledge of environmental biology and its practical applications is essential for a deeper understanding of the environment. Environmental Biology offers an invaluable introduction to the living environment for all areas of study, from environmental history, agriculture and forestry, to impact assessment, climate change, ecology and conservation.
Soil Biology
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Author : A Burgers
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Soil Biology written by A Burgers and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Technology & Engineering categories.
Soil Biology brings together the microbiological, botanical, and zoological aspects of soil biology. Leading specialists provide critical reviews and assessments of their particular branches of soil biology, paying particular attention to functional aspects and biotic interrelationships whenever possible. This volume is organized into 17 chapters and begins with an overview of the soil system, emphasizing the system components including the mineral fraction, organic matter, soil moisture, and soil atmosphere. The next chapters focus on microorganisms present in the soil, along with their effects on plant roots. The book also discusses the soil algae, including how algae are affected by physical and chemical environments and their interrelations with other organisms. The remaining chapters look at other organisms that inhabit the soil, including Arthropoda, Collembola, and Mollusca, as well as the probable effects of inhibiting substances upon the biology of soil microorganisms. The final chapters explain the decomposition of organic matter in the soil and the effects of synthetic chemicals on soil microorganisms. This book is a valuable resource for soil biologists and research workers in fields such as botany, agriculture, zoology, and microbiology.
Numbers Of Living Species In Australia And The World
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Author : Arthur D. Chapman
language : en
Publisher:
Release Date : 2009
Numbers Of Living Species In Australia And The World written by Arthur D. Chapman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Biodiversity categories.
Agro Acuicultura Integrada
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Author : Food and Agriculture Organization of the United Nations
language : es
Publisher: Food & Agriculture Org.
Release Date : 2003-12-30
Agro Acuicultura Integrada written by Food and Agriculture Organization of the United Nations and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-12-30 with Business & Economics categories.
Este documento contiene 38 contribuciones en siete secciones, que exponen las consideraciones socioculturales, economicas y ambientales relativas a la introduccion de las tecnicas de integracion, y ofrece numerosos ejemplos de cultivos integrados incluyendo la integracion peces-animales y arroz-peces, asi como aspectos de la alimentacion, gestion, reproduccion y cria de peces en el contexto de la integracion. El objetivo de esta publicacion es dar a los responsables de la toma de decisiones sobre agricultura y desarrollo rural una vision general y los fundamentos de la integracion agricultura-acuicultura, y ayudarles a decidir si desean incluir estas practicas en sus programas. La publicacion ofrece ejemplos de sistemas de integracion que pueden resultar utiles para especialistas que trabajan directamente con los agricultores. Los agricultores pueden mejorar sus condiciones de vida bien introduciendo en sus granjas los sistemas de integracion agricultura-acuicultura, o bien mejorando ulteriormente los sistemas que ya han introducido."
Systematics As Cyberscience
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Author : Christine Hine
language : en
Publisher:
Release Date : 2008
Systematics As Cyberscience written by Christine Hine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Computers categories.
The results of technological developments are rarely unambiguous gains in efficiency, and are highly discipline-specific."--BOOK JACKET.
Nutrient Cycling In Forest Ecosystems
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Author : Robert G. Qualls
language : en
Publisher:
Release Date : 2020
Nutrient Cycling In Forest Ecosystems written by Robert G. Qualls and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
The long-term productivity of forest ecosystems depends on the cycling of nutrients. The effect of carbon dioxide fertilization on forest productivity may ultimately be limited by the rate of nutrient cycling. Contemporary and future disturbances such as climatic warming, N-deposition, deforestation, short rotation sylviculture, fire (both wild and controlled), and the invasion of exotic species all place strains on the integrity of ecosystem nutrient cycling. Global differences in climate, soils, and species make it difficult to extrapolate even a single important study worldwide. Despite advances in the understanding of nutrient cycling and carbon production in forests, many questions remain. The chapters in this volume reflect many contemporary research priorities. The thirteen studies in this volume are arranged in the following subject groups: • N and P resorption from foliage worldwide, along chronosequences and along elevation gradients; • Litter production and decomposition; • N and P stoichiometry as affected by N deposition, geographic gradients, species changes, and ecosystem restoration; • Effects of N and P addition on understory biomass, litter, and soil; • Effects of burning on soil nutrients; • Effects of N addition on soil fauna.
Defining Species
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Author : John S. Wilkins
language : en
Publisher: Peter Lang
Release Date : 2009
Defining Species written by John S. Wilkins and has been published by Peter Lang this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with History categories.
This book was listed as a CHOICE Outstanding Academic Title in 2011. Defining Species: A Sourcebook from Antiquity to Today provides excerpts and commentary on the definition of «species» from source material ranging from the Greeks, through the middle ages, to the modern era. It demonstrates that the logical meaning of species is in direct contrast to the use of kind terms and concepts in natural history and biology, and that the myth that biologists or natural historians were ever essentialists about kinds is mistaken.