Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Diagnostico Nutricional De Uma Lavoura De Soja Com Base Em Dados Georreferenciados full books in PDF, epub, and Kindle. Read online Diagnostico Nutricional De Uma Lavoura De Soja Com Base Em Dados Georreferenciados ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : L. L. Krahl
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (79 download)
Download or read book Diagnóstico nutricional de uma lavoura de soja com base em dados georreferenciados written by L. L. Krahl and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Luise Lottici Krahl Krahl
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (79 download)
Download or read book Diagnóstico especializado do estado nutricional de uma lavoura de soja written by Luise Lottici Krahl Krahl and published by . This book was released on 2008 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: A agricultura de precisão é uma técnica baseada na coleta de informações georreferenciadas de solo, folha e produção, a fim de subsidiar a aplicação de fertilizantes a taxas variáveis e aperfeiçoar o manejo da adubação. O objetivo deste trabalho foi diagnosticar de forma especializada o estado nutricional da cultura da soja em uma área de produção comercial, a partir de dados de análises foliares georreferenciadas e identificar os fatores nutricionais interferentes na produtividade. Foi selecionado um talhão de 107 hectares, localizado em Planaltina de Goiás - GO, dividido em uma grade regular de 100 x 100m. No florescimento de soja, foram coletadas para análise foliar amostras compostas para cada quadrícula. O monitoramento da produção foi feito por meio de uma colheitadora equipada com GPS e sensores de produtividade. Os resultados das análises foliares para cada nutriente foram interpretados pelo método das faixas de suficiência e pelo Sistema integrado de diagnose e Recomendação - DRIS. Foram ainda determinadas faixas de suficiência especificadas para a área de estudo, ajustada pelo DRIS. O N foi o nutriente mais limitante, de acordo com os valores recomendados pela literatura, enquanto os índices DRIS apontaram maiores relacionamentos a N, Cu e P. Quando considerada a faixa de suficiência ajustada pelo DRIS, foram evidenciadas maiores limitações relacionadas a Cu, B, N, Mn e Zn. A partir da diferença entre teores foliares simulados e teores foliares analisados, obteve-se o diagnóstico especializado para cada nutriente, indicando subáreas de maior probabilidade de resposta a medidas corretivas dentro do talhão, o que permite o estabelecimento de zonas de manejo específico, resultando no uso mais econômico e racional de fertilizantes. Palavras - chave: agricultura de precisão, análises foliares, DRIS.
Author : Alvaro Vilela de Resende
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (236 download)
Download or read book Diagnóstico nutricional de uma lavoura de soja a partir de informações georreferenciadas written by Alvaro Vilela de Resende and published by . This book was released on 2005 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neste trabalho objetivou-se identificar os fatores relacionados à produtividade da soja, utilizando informações georreferenciadas sobre o estado nutricional das plantas, atributos do solo e produtividade da cultura. Uma área de 27,5 hectares foi dividida em grande amostral regular de 50 x 50 m para coletas de folhas e do solo para análise. A colheita foi monitorada por meio de uma colhedora equipada com sensor de produtividade e DGPS. Os resultados das análisesj de solo e de folhas foram interpretados agronomicamente e correlacionados entre si e com a produtividade. Foram gerados mapas representando a espacialização das variáveis mais relevantes. Não foram obtidas correlações significativas dos teores foliares de nutrientes com as características do solo ou com a produtividade. Na lavorua estudada, os teores da matéria orgânica e do potássio no solo e a saturação do potássio na CTC são os atributos mais relacionados com a produtividade da soja.
Author : A. V. de RESENDE
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (78 download)
Download or read book Diagnóstico nutricional de uma lavoura de soja a partir de informações georreferenciais written by A. V. de RESENDE and published by . This book was released on 2005 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: RESUMO: Neste trabalho, objetivou-se identificar os fatores relacionados à produtividade da soja, utilizando informações georreferenciadas sobre o estado nutricional das plantas, atributos do solo e produtividade da cultura. Uma área de 27,5 hectares foi dividida em grade amostral regular de 50 x 50m para coletas de folhas e do solo para análise. A colheita foi monitorada por meio de uma colhedora equipada com sensor de produtividade e DGPS. Os resultados das análises de solo e de folhas foram interpretados agronomicamente e correlacionados entre si e com a produtividade. Foram gerados mapas representando a espacialização das variáveis mais relevantes. Não foram obtidas correlações significativas dos teores foliares de nutrientes com as características do solo ou com a produtividade. Na lavoura estudada, os teores da matéria orgânica e potássio no solo e a saturação do potássio na CTC são os atributos mais relacionados com a produtividade da soja. ABSTRACT: The aim of this study was to identify yield conditioning factors of a soybean crop, based on georreferenced information concerning the plant nutritional status, soil attributes, and crop yield. An area of 27,5 ha was divided in a regular grid of 50 x 50m for colecting leaf and soil samples. The harvest was done using yield monitor and DGPS. Soil, plant, and yield data were interpreted on the agronomic basis, and submitted to correalation analysis. The spatial variation of the most important variables was mapped. It was not found any significant correlation among leaf nutrient concentrations and soil characteristics or yield. The soil organic matter and potassium contents, as well as the CEC potassium saturation, were the variables most correlated with the soybean yield.
Author : A. Ciancio
Publisher : Springer Science & Business Media
ISBN 13 : 1402060637
Total Pages : 364 pages
Book Rating : 4.4/5 (2 download)
Download or read book Integrated Management and Biocontrol of Vegetable and Grain Crops Nematodes written by A. Ciancio and published by Springer Science & Business Media. This book was released on 2007-12-08 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second volume of the IMPD series describes aspects related to the most important phytoparasitic nematodes, considering the integration of biological control methods with other management practices and technologies, including the use of predatory nematodes and microbial rhizosphere antagonists. A focus is given on regional issues. A review on nematode management in cotton is integrated by a chapter on management of nematodes on wheat. New technologies are also revised.
Author : Raphael A. Viscarra Rossel
Publisher : Springer Science & Business Media
ISBN 13 : 9048188598
Total Pages : 440 pages
Book Rating : 4.0/5 (481 download)
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.
Author : R. Lal
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.3/5 (91 download)
Download or read book Soil Management for Sustainability written by R. Lal and published by . This book was released on 1991 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book manuscripts presented originally at a World Association of Soil and Water Conservation conference held in 1989 are collected. Topics include basic processes (e.g. soil structure, soil erosion, soil compaction); management options (e.g. conservation tillage); policy issues and priorities
Author : Roland N. Perry
Publisher : CABI
ISBN 13 : 1800622422
Total Pages : 661 pages
Book Rating : 4.8/5 (6 download)
Download or read book Plant Nematology, 3rd Edition written by Roland N. Perry and published by CABI. This book was released on 2024-07-12 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant-parasitic nematodes are a major threat to crop production in all countries, and identification of nematodes and knowledge of their biology is of paramount importance. Providing a broad introduction to nematodes as plant parasites, this book begins by describing nematodes by genera, and then builds on this foundation to detail nematode biology and pest management, including resistance, and biological and chemical control. This 3rd edition is updated to address advances in our knowledge of plant-parasitic nematodes, particularly concerning the molecular aspects of host-parasite relationships, including the application of genomics to nematode biology. Changes in control and management strategies are also covered. The influence of climate change on plant-parasitic nematodes is addressed in a new chapter on ecology. Primarily aimed at students (MSc and PhD), this book is also invaluable for researchers and lecturers in nematology, plant pathology and parasitology, advisory and quarantine services, and crop protection scientists.
Author : M. Wajid Khan
Publisher : Springer Science & Business Media
ISBN 13 : 9401114889
Total Pages : 388 pages
Book Rating : 4.4/5 (11 download)
Download or read book Nematode Interactions written by M. Wajid Khan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nematode interactions are important biological phenomena and of great significance in agriculture. It is a fascinating subject which is multidisciplinary by nature, and concerns any scientist involved with plant health. There have been marked advances in our knowledge of various aspects of the subject in the last two decades. This study area has been the subject of several reviews, but there was no exclusive text on the subject. This has stressed the need to document the information, developing a unifying theme which treated nematode interactions in a holistic manner. This book is about the inter action of plant-parasitic nematodes with other plant pathogens or root symbionts, the nature of their associations, their impact on the host and con sequential interactive effects on the involved organisms. Since nematodes are at the centre of the theme, the responsibility of understanding of other plant pathogens dealt with in this book is largely delegated to the reader. I have limited the book content to interactions with biotic pathogens and root symbionts only, for various reasons. The book embodies 16 chapters, and attempts to present balanced infor mation on various aspects of nematode interactions with other plant pathogens and root symbionts. Some chapters describe general aspects of the subject. Interactions of nematodes with specific groups of organisms are addressed in the remaining chapters.
Author : Juan José Ibáñez
Publisher : CRC Press
ISBN 13 : 1466582782
Total Pages : 250 pages
Book Rating : 4.4/5 (665 download)
Download or read book Pedodiversity written by Juan José Ibáñez and published by CRC Press. This book was released on 2013-04-08 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil diversity (pedodiversity) is part of our natural and cultural heritage. The preservation of the pedosphere is essential for the protection of the biosphere and the Earth's systems, the regulation of climate, and for world food security. In this book, reputed international experts discuss the state of the art of pedodiversity analysis-analyzing
Author : Guy Cowlishaw
Publisher : University of Chicago Press
ISBN 13 : 022682117X
Total Pages : 511 pages
Book Rating : 4.2/5 (268 download)
Download or read book Primate Conservation Biology written by Guy Cowlishaw and published by University of Chicago Press. This book was released on 2021-08-17 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the snub-nosed monkeys of China to the mountain gorillas of central Africa, our closest nonhuman relatives are in critical danger worldwide. A recent report, for example, warns that nearly 20 percent of the world's primates may go extinct within the next ten or twenty years. In this book Guy Cowlishaw and Robin Dunbar integrate cutting-edge theoretical advances with practical management priorities to give scientists and policymakers the tools they need to help keep these species from disappearing forever. Primate Conservation Biology begins with detailed overviews of the diversity, life history, ecology, and behavior of primates and the ways these factors influence primate abundance and distribution. Cowlishaw and Dunbar then discuss the factors that put primates at the greatest risk of extinction, especially habitat disturbance and hunting. The remaining chapters present a comprehensive review of conservation strategies and management practices, highlighting the key issues that must be addressed to protect primates for the future.
Author :
Publisher :
ISBN 13 :
Total Pages : 820 pages
Book Rating : 4.4/5 (854 download)
Download or read book Fauna of West Bengal: Insecta (Diptera and Lepidoptera) written by and published by . This book was released on 1997 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 780 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Journal of Ecology written by and published by . This book was released on 1945 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 16-21 include supplement: British empire vegetation abstracts.
Author : Laura K. Marsh
Publisher : Springer Science & Business Media
ISBN 13 : 1461488397
Total Pages : 543 pages
Book Rating : 4.4/5 (614 download)
Download or read book Primates in Fragments written by Laura K. Marsh and published by Springer Science & Business Media. This book was released on 2013-09-07 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is number two in a series for Primates in Fragments. In this volume, ten years after the first http://www.springer.com/social+sciences/anthropology+%26+archaeology/book/978-0-306-47696-9, we continue to address issues regarding primates within a fractured landscape. There are seven sections based on specific categories of primates in fragments. In the Introductory section, authors discuss the issues surrounding primates in remnant habitats as well as encourage discussion about what we mean by fragmentation on a landscape scale. In the Long-Term and Regional Studies section, authors present information on changes that have occurred during longer studies as well as changes that have occurred over regions. In the Landscape, Metapopulations and the Matrix section, authors cover topics from dry to moist forests, and from metapopulations to single species use of multiple fragments locations. In Feeding and Behavioral Ecology, authors take a closer look at the flexibility and responsiveness of primates in fragments in terms of their food choices, resource use, and behavioral changes. In Endemic, Endangered, and Nocturnal Primates authors uncover details involving critical primates living in major city centers to the heights of the Himalayas. In Genetics, Disease and Parasites authors cover topics including population viability, disease and parasite transmission between primates in fragments and humans. Finally, in the Conservation and Ecology: Threats and Management section, we synthesize information in this volume and make recommendations for the future of work in this field and the survivability of primates in fragments.
Author : Michael P Muehlenbein
Publisher : Academic Press
ISBN 13 : 0128026936
Total Pages : 609 pages
Book Rating : 4.1/5 (28 download)
Download or read book Basics in Human Evolution written by Michael P Muehlenbein and published by Academic Press. This book was released on 2015-07-24 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basics in Human Evolution offers a broad view of evolutionary biology and medicine. The book is written for a non-expert audience, providing accessible and convenient content that will appeal to numerous readers across the interdisciplinary field. From evolutionary theory, to cultural evolution, this book fills gaps in the readers' knowledge from various backgrounds and introduces them to thought leaders in human evolution research. - Offers comprehensive coverage of the wide ranging field of human evolution - Written for a non-expert audience, providing accessible and convenient content that will appeal to numerous readers across the interdisciplinary field - Provides expertise from leading minds in the field - Allows the reader the ability to gain exposure to various topics in one publication
Author : Matt Sponheimer
Publisher : University Press of Colorado
ISBN 13 : 1457181339
Total Pages : 485 pages
Book Rating : 4.4/5 (571 download)
Download or read book Early Hominin Paleoecology written by Matt Sponheimer and published by University Press of Colorado. This book was released on 2013-05-15 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the multidisciplinary field of hominin paleoecology for advanced undergraduate students and beginning graduate students, Early Hominin Paleoecology offers an up?to?date review of the relevant literature, exploring new research and synthesizing old and new ideas. Recent advances in the field and the laboratory are not only improving our understanding of human evolution but are also transforming it. Given the increasing specialization of the individual fields of study in hominin paleontology, communicating research results and data is difficult, especially to a broad audience of graduate students, advanced undergraduates, and the interested public. Early Hominin Paleoecology provides a good working knowledge of the subject while also presenting a solid grounding in the sundry ways this knowledge has been constructed. The book is divided into three sections—climate and environment (with a particular focus on the latter), adaptation and behavior, and modern analogs and models—and features contributors from various fields of study, including archaeology, primatology, paleoclimatology, sedimentology, and geochemistry. Early Hominin Paleoecology is an accessible entrée into this fascinating and ever-evolving field and will be essential to any student interested in pursuing research in human paleoecology.
Author : Diane K. Brockman
Publisher : Cambridge University Press
ISBN 13 : 9780521820691
Total Pages : 616 pages
Book Rating : 4.8/5 (26 download)
Download or read book Seasonality in Primates written by Diane K. Brockman and published by Cambridge University Press. This book was released on 2005-11-17 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores how seasonal variation in resource abundance might have driven primate and human evolution.
