Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Adubacao Nitrogenada Tardia Na Soja Cultivada Em Latossolos Do Cerrado full books in PDF, epub, and Kindle. Read online Adubacao Nitrogenada Tardia Na Soja Cultivada Em Latossolos Do Cerrado ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Ieda de Carvalho Mendes
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (76 download)
Download or read book Adubação nitrogenada tardia na soja cultivada em latossolos do Cerrado written by Ieda de Carvalho Mendes and published by . This book was released on 2009 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : I. de C. MENDES
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (79 download)
Download or read book Adubação nitrogenada tardia na soja cultivada em Latossolo do Cerrado written by I. de C. MENDES and published by . This book was released on 2009 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : I. de C. MENDES
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (79 download)
Download or read book Adubação nitrogenada suplementar tardia na soja cultivada em Latossolos do Cerrado written by I. de C. MENDES and published by . This book was released on 2007 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foi avaliado o efeito da suplementação tardia (pré-florescimento e início do enchimento de grãos) com diferentes fontes de adubo nitrogenado (uréia, nitrato de amônio e sulfato de amônio) no rendimento da soja cultivada em latossolos de Cerrado. Quinze experimentos foram conduzidos na Embrapa Cerrados, no período de 200 a 2005, em latossolos com populações estabelecidas de Bradyrhizobium capazes de nodular a soja.
Author : Frans J. de Bruijn
Publisher : John Wiley & Sons
ISBN 13 : 1118637216
Total Pages : 2250 pages
Book Rating : 4.1/5 (186 download)
Download or read book Biological Nitrogen Fixation written by Frans J. de Bruijn and published by John Wiley & Sons. This book was released on 2015-06-16 with total page 2250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is arguably the most important nutrient required by plants. However, the availability of nitrogen is limited in many soils and although the earth's atmosphere consists of 78.1% nitrogen gas (N2) plants are unable to use this form of nitrogen. To compensate , modern agriculture has been highly reliant on industrial nitrogen fertilizers to achieve maximum crop productivity. However, a great deal of fossil fuel is required for the production and delivery of nitrogen fertilizer. Moreover carbon dioxide (CO2) which is released during fossil fuel combustion contributes to the greenhouse effect and run off of nitrate leads to eutrophication of the waterways. Biological nitrogen fixation is an alternative to nitrogen fertilizer. It is carried out by prokaryotes using an enzyme complex called nitrogenase and results in atmospheric N2 being reduced into a form of nitrogen diazotrophic organisms and plants are able to use (ammonia). It is this process and its major players which will be discussed in this book. Biological Nitrogen Fixation is a comprehensive two volume work bringing together both review and original research articles on key topics in nitrogen fixation. Chapters across both volumes emphasize molecular techniques and advanced biochemical analysis approaches applicable to various aspects of biological nitrogen fixation. Volume 1 explores the chemistry and biochemistry of nitrogenases, nif gene regulation, the taxonomy, evolution, and genomics of nitrogen fixing organisms, as well as their physiology and metabolism. Volume 2 covers the symbiotic interaction of nitrogen fixing organisms with their host plants, including nodulation and symbiotic nitrogen fixation, plant and microbial "omics", cyanobacteria, diazotrophs and non-legumes, field studies and inoculum preparation, as well as nitrogen fixation and cereals. Covering the full breadth of current nitrogen fixation research and expanding it towards future advances in the field, Biological Nitrogen Fixation will be a one-stop reference for microbial ecologists and environmental microbiologists as well as plant and agricultural researchers working on crop sustainability.
Author : G. P. Rios
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (79 download)
Download or read book Adubacao nitrogenada em soja em solos de cerrado written by G. P. Rios and published by . This book was released on 1971 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anderson Lange
Publisher :
ISBN 13 :
Total Pages : 135 pages
Book Rating : 4.:/5 (775 download)
Download or read book Manejo da adubação nitrogenada na cultura do milho após cultivo da soja em sistema semeadura direta no Cerrado written by Anderson Lange and published by . This book was released on 2006 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Continuação) No experimento em solo de textura média houve resposta à aplicação de N em relação à testemunha e beneficio do parcelamento em diferentes épocas, em relação à aplicação de maiores doses em uma única aplicação. Neste experimento, não houve diferença na produtividade de grãos na fertilização de cobertura do milho, usando uréia ou sulfato de amônio. Em solos de textura muito argilosa não houve resposta na produtividade de grãos do milho quando se aplicou N suplementar à adubação de semeadura, independente da época de aplicação. A eficiência da adubação nitrogenada variou de 26 a 70% para as diferentes épocas de aplicação, sendo que a média de aproveitamento foi de 50%. A aplicação antecipada não se mostrou eficiente em relação à recuperação do fertilizante, sendo recomendada adubação em cobertura, principalmente em solos mais arenosos.
Author : Mohammad Saghir Khan
Publisher : Springer Science & Business Media
ISBN 13 : 3211997539
Total Pages : 544 pages
Book Rating : 4.2/5 (119 download)
Download or read book Microbes for Legume Improvement written by Mohammad Saghir Khan and published by Springer Science & Business Media. This book was released on 2010-07-12 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbes for Legume Improvement comprises 21 chapters and provides comprehensive information on concepts of microbial technology for the improvement of legumes grown in different agro-ecosystems. The role of microbes including symbiotic nitrogen fixers, asymbiotic nitrogen fixing bacteria (like Azospirillum), plant growth promoting rhizobacteria (PGPR), phosphate-solubilizing microbes, arbuscular mycorrhizal fungi and biocontrol agents in the improvement of both conventional and forage legumes growth is discussed. The role of bacterial biofilms in legume-Rhizobium interactions and metal tolerant microbes in the improvement of legumes is dealt separately. Furthermore, recent findings on the taxonomic status of rhizobia, various signal molecules affecting symbiosis, legume-pathogen and legume-rhizobial interactions and proteomic analysis of legume–microbe interactions are addressed. This volume gives a broad view of legume disease management using microbes and presents strategies for the management of cultivated legumes. It is therefore of special interest to both academics and professionals working in the field of microbiology, soil microbiology, environment microbiology, biotechnology and agronomy as well as plant protection sciences.
Download or read book \"Manejo da adubação nitrogenada na cultura do milho após cultivo da soja em sistema semeadura direta no Cerrado\" written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: O cultivo de plantas de cobertura como cultura de inverno para produzir palha e proteger o solo após a colheita da cultura de verão, na região do Cerrado brasileiro, tem sido um dos maiores desafios para os produtores que optaram pela adoção do sistema semeadura direta. Outra dificuldade inerente ao sistema semeadura direta, com peculiaridade para o Cerrado, refere-se ao manejo do nitrogênio (N) na cultura do milho, já que o ciclo deste nutriente é extremamente dependente das condições climáticas, apresentando, por isto, comportamento diferente da região Sul do país. Nesta situação, a aplicação de N na semeadura da cultura de cobertura de solo com o objetivo de aumentar a produção de palha ou em pré-semeadura da cultura principal, buscando otimizar tempo, pode ser uma estratégia que apresente a mesma eficiência da fertilização na cobertura no milho em sucessão à soja. Os objetivos do estudo foram avaliar a produção de massa de matéria seca de culturas de cobertura de solo e de espécies espontâneas; determinar a influência das épocas da fertilização nitrogenada nos caracteres fenológicos, na produtividade de grãos e de massa de matéria seca da cultura do milho cultivado após 2 anos de soja e, também, quantificar a eficiência da adubação nitrogenada, utilizando a técnica da diluição isotópica (15N). Foram desenvolvidos dois experimentos na região do Triângulo Mineiro, no Estado de Minas Gerais, avaliando-se doses, fontes e épocas de aplicação de N. As doses de N foram: 110 kg ha-1 no experimento em solo de textura média e 70 kg ha-1 no experimento em solo de textura muito argilosa, como dose suplementar à adubação de semeadura. As culturas de cobertura de solo, cultivadas após a colheita da cultura de verão, não foram eficientes na produção de palha; a adubação nitrogenada aplicada na semeadura da cultura de cobertura de solo também não resultou em produção de palha. No experimento em solo de textura média houve resposta à aplicação de N em relação à testemunha e bene.
Author : I. C. Mendes
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (78 download)
Download or read book Resposta da soja à adubação nitrogenada na semeadura, em sistemas de plantio direto e convencional na região do cerrado written by I. C. Mendes and published by . This book was released on 2000 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Desde 1980, a pesquisa tem mostrado a inutilidade da prática da adubação nitrogenada na semeadura da soja. Entretanto, com a expansão do plantio direto, na região do Cerrado, novamente surgiram dúvidas, por parte de alguns agricultores, sobre a eficiência do processo de inoculação e sobre a necessidade, ou não, da utilização de doses de "arranque" de adubo nitrogenado na semeadura, para superar possíveis problemas relacionados a imobilização do N e a competição inicial com plantas invasoras. Foram conduzidos, na Embrapa Cerrados, dois experimentos em áreas sob plantio direto (PD) e dois em áreas sob plantio convencional (PC) para avaliar a resposta da soja a pequenas doses de N na semeadura. Os tratamentos consistiram de quatro níveis de N (0, 20, 30, e 40 kg N.ha-1) na forma de uréia, aplicada, na semeadura, no sulco de plantio. Em ambas as áreas, a soja foi cultivada apos o milho. Todos os tratamentos foram inoculados com as estirpes SEMIA 5079 (CPAC 15) e SEMIA 5080 (CPAC 7) na proporção de 1 kg de inoculante para 50 kg de sementes. A adição de pequenas doses de adubo nitrogenado, na semeadura da soja, promoveu reduções significativas de ate 50% na sua nodulação inicial, avaliada aos 15 dias após a emergência. Apesar dessa redução, houve recuperação no número e na massa de nodulos na fase da floração. Independentemente do sistema de manejo, a adição de pequenas doses de N, na semeadura, não promoveu aumentos no rendimento de grãos da soja. Os resultados confirmam que não e necessário adicionar fertilizante nitrogenado na semeadura da soja.
Author : M. A. T. Vargas
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (79 download)
Download or read book Adubacao nitrogenada e epoca de aplicacao de calcario para soja (Glycine max (L.) Merrill) cultivada em um solo de cerrado written by M. A. T. Vargas and published by . This book was released on with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A.C. de S. MEDEIROS
Publisher :
ISBN 13 :
Total Pages : 85 pages
Book Rating : 4.:/5 (79 download)
Download or read book Adubacao nitrogenada no cerrado, culturas anuais e perenes written by A.C. de S. MEDEIROS and published by . This book was released on 1983 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apresenta-se nesta revisao alguns aspectos da adubacao nitrogenada no Cerrado, aplicada a culturas anuais e perenes. Em culturas anuais inclue-se o arroz, feijao, milho, soja e trigo. Em culturas perenes, pastagens, cafe, essencias floresetais e algumas frutiferas. Comenta-se sobre as cracteristicas do solo de cerrado e tambem sobre fertilizantes nitrogenados. De modo geral as culturas respondem significativamente as aplicacoes de nitrogenio, quando este elemento e aplicado isoladamente ou misturado a outros nutrientes. Nao se verifica efeitos negativos em sua utilizacao. Contudo as formulacoes sao ainda inadequadas para as condicoes de Cerrado por ser esta uma area recentemente utilizada para uma agricultura intensiva.
Author : Ondino C. Bataglia
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (79 download)
Download or read book Absorção de nutrientes pela soja em latossolo roxo sob vegetação de cerrado written by Ondino C. Bataglia and published by . This book was released on 1977 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estudou-se o acumulo de materia seca e a absorcao de nutrientes pela cultivar de soja Santa Rosa, de porte determinado, em estadios sucessivos de desenvolvimento. Num experimento conduzido em latossolo roxo de textura fina sob vegetacao de cerrado no municipio de Sao Simao, as amostragens da parte aerea foram feitas a intervalos de 20 dias, no primeiro ano e de trinta dias, nos dois anos subsequentes. Para essa cultivar observou-se maior desenvolvimento vegetativo ate os 90 dias apos o plantio. Todavia, o maior acumulo de materia seca pela planta ocorreu aos 120 dias, quando os graos estavam maduros. Os graos foram responsaveis pela remocao da maior parte de N, P, S e Mo acumulada pela planta durante todo o ciclo. O acumulo desses elementos comparado com a producao de materia seca revelou-se relativamente mais lento. O Zn e o potassio, que tambem sao componentes da semente, tem comportamento distinto quanto a velocidade de absorcao, em comparacao com a producao de materia seca. O zinco tem velocidade de absorcao semelhante a producao de materia seca, enquanto o potassio tem velocidade de absorcao mais rapida. Por outro lado, Ca, Mg, Fe e Mna constituem em maior proporcao a parte vegetativa das plantas. A maior velocidade de acumulo de nutrientes verifica-se ente 60 e 90 dias, fase compreendida entre o florescimento e o inicio da formacao das vagens.
Author : F. M. Fernandes
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (79 download)
Download or read book Comparacao de fontes e doses de adubos fosfatados na cultura da soja (Glycine max L. Merrill) em solo de cerrado written by F. M. Fernandes and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Por ser fosforo, de um modo geal, o nutriente de plantas limitante em solos sob vegetacao de cerrado efetuou-se o presente trabalho para investigar esse fatoe comparar os efeitos de tres fontes de fosforo, em quatro doses na producao de graos de soja cultivar UFV-1, em um solo sob vegetacao de cerrado, classificado como Latossolo Vermelho-Escuro alico, textura argilosa, da Fazenda Experimental da UNESP - Campus de Ilha Solteira, municipio de Selviria, MS. No ano agricola 1978/79 (1o cultivo) os tratamentos foram instalados a partir de tres fontes fosfatadas (superfosfato triplo, termofosfato Mg-Yoorin e fosfato de Araxa) e quatro niveis (considerando-se os fatores 0,5 - 1,0 - 1,5 - 2,0 vezes o valor X, calculado pelo processo de WAUGH e FITTS, modificado por FERREIRA, aplicados a lanco e incorporados a uma profundidade de 0-20 cm. No ano agricula 1979/80 (2o cultivo) os tratamentos foram formados pelos tratamentos do primeiro cultivo (efeito residual) mais cinco niveis de adubacao fosfatada (soperfosfato triplo) em manutencao no sulco de plantio. Para avaliacao, realizou-se amostragem de solo em diferentes periodos (outubro e novembro de 1978; marco e novembro de 1979; marco de 1980) determinando-se pH, Al+3 trocavel, Ca++ + Mg++ trocaveis e P soluvel em NH4F 0,03N + Hcl 0,025N (Bray-1) e producao de graos no ano agricola de 1978/79 e ano agricola de 1979/80.
Author : Dietrich Werner
Publisher : Springer Science & Business Media
ISBN 13 : 9781402035425
Total Pages : 380 pages
Book Rating : 4.0/5 (354 download)
Download or read book Nitrogen Fixation in Agriculture, Forestry, Ecology, and the Environment written by Dietrich Werner and published by Springer Science & Business Media. This book was released on 2005-10-24 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainability has a major part to play in the global challenge of continued development of regions, countries, and continents all around the World and biological nitrogen fixation has a key role in this process. This volume begins with chapters specifically addressing crops of major global importance, such as soybeans, rice, and sugar cane. It continues with a second important focus, agroforestry, and describes the use and promise of both legume trees with their rhizobial symbionts and other nitrogen-fixing trees with their actinorhizal colonization. An over-arching theme of all chapters is the interaction of the plants and trees with microbes and this theme allows other aspects of soil microbiology, such as interactions with arbuscular mycorrhizal fungi and the impact of soil-stress factors on biological nitrogen fixation, to be addressed. Furthermore, a link to basic science occurs through the inclusion of chapters describing the biogeochemically important nitrogen cycle and its key relationships among nitrogen fixation, nitrification, and denitrification. The volume then provides an up-to-date view of the production of microbial inocula, especially those for legume crops.
Author : P. Graham
Publisher : Springer Science & Business Media
ISBN 13 : 9401110883
Total Pages : 206 pages
Book Rating : 4.4/5 (11 download)
Download or read book Symbiotic Nitrogen Fixation written by P. Graham and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past three decades there has been a large amount of research on biological nitrogen fixation, in part stimulated by increasing world prices of nitrogen-containing fertilizers and environmental concerns. In the last several years, research on plant--microbe interactions, and symbiotic and asymbiotic nitrogen fixation has become truly interdisciplinary in nature, stimulated to some degree by the use of modern genetic techniques. These methodologies have allowed us to make detailed analyses of plant and bacterial genes involved in symbiotic processes and to follow the growth and persistence of the root-nodule bacteria and free-living nitrogen-fixing bacteria in soils. Through the efforts of a large number of researchers we now have a better understanding of the ecology of rhizobia, environmental parameters affecting the infection and nodulation process, the nature of specificity, the biochemistry of host plants and microsymbionts, and chemical signalling between symbiotic partners. This volume gives a summary of current research efforts and knowledge in the field of biological nitrogen fixation. Since the research field is diverse in nature, this book presents a collection of papers in the major research area of physiology and metabolism, genetics, evolution, taxonomy, ecology, and international programs.
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 : James E. Board
Publisher :
ISBN 13 : 9789535142591
Total Pages : 626 pages
Book Rating : 4.1/5 (425 download)
Download or read book A Comprehensive Survey of International Soybean Research - Genetics, Physiology, Agronomy and Nitrogen Relationships written by James E. Board and published by . This book was released on 2013 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean is the most important oilseed and livestock feed crop in the world. These dual uses are attributed to the crop's high protein content (nearly 40% of seed weight) and oil content (approximately 20%); characteristics that are not rivaled by any other agronomic crop. Across the 10-year period from 2001 to 2010, world soybean production increased from 168 to 258 million metric tons (54% increase). Against the backdrop of soybean's striking ascendancy is increased research interest in the crop throughout the world. Information in this book presents a comprehensive view of research efforts in genetics, plant physiology, agronomy, agricultural economics, and nitrogen relationships that will benefit soybean stakeholders and scientists throughout the world. We hope you enjoy the book.
