Acumulacao de materia seca e nutrientes em quatro hibridos de milho (Zea mays L.).

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ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.:/5 (79 download)

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Book Synopsis Acumulacao de materia seca e nutrientes em quatro hibridos de milho (Zea mays L.). by : C. V. Manzatto

Download or read book Acumulacao de materia seca e nutrientes em quatro hibridos de milho (Zea mays L.). written by C. V. Manzatto and published by . This book was released on 1987 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foi conduzido um ensaio em casa de vegetacao, no periodo de junho a setembro de 1986, no Depto. de Solos da UFRRJ, para o estudo diferencial de quatro hibridos de milho (Zea mays L.), UNICAMP (F1 902x903), HSN-01, DINA 10 e IAC 1228, quanto ao crescimento, absorcao, acumulacao e itilizacao de N, P eK em uma unica solucao nutritiva, contendo todos os nutrientes necessarios ao crescimento. Asolucao nutritiva foi aerada diariamente, renovada periodicamente e seu pH rejustado, em dias alternados, ao seu valoe inicial (5,%). Durante todo o periodo experimental (87 DAP), as partes das plantas foram coletadas aos 15, 21, 35, 45, 51, 67, 72 e 87 dias apos plantio. Observaram-se diferencas significativas na acumulacao de materia seca total e das partes da planta (colmo + bainhas, folhas e raizes)., nas areas foliar e radicular e no acumulo total de N, P e K. Procedeu-se entao a uma analise de crescimento, utilizando-se funcoes matematicas. Afuncao exponencial polinomial com limitacao quadratica descreveu convenientemente a variacao temporal da acumulacao de materia seca da planta e de suas partes foliar e radicular e da acumulacao de nutrientes nos diversos hibridos estudados. Aparticao da taxa de absorcao de nutrientes em seus componentes parciais. Fluxo (F) e Razao de Area Radicular (RAR), bem como do F em seus componentes Taxa de Assimilacao liquida (TAL), relacao Area Foliar Area Radicular (RAFAR) e relacoes TAA. TCA-1, revelou que os hibridos de alta produtividade (DINA 10 e IAC 1228) sao capazes de manter valores ...

Acumulo de materia seca em quatro hibridos de milho (Zea Mays L.) no periodo entre o espigamento e a maturação fisiologica

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ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (819 download)

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Book Synopsis Acumulo de materia seca em quatro hibridos de milho (Zea Mays L.) no periodo entre o espigamento e a maturação fisiologica by : Levi Ribas de Miranda Ramos

Download or read book Acumulo de materia seca em quatro hibridos de milho (Zea Mays L.) no periodo entre o espigamento e a maturação fisiologica written by Levi Ribas de Miranda Ramos and published by . This book was released on 1979 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Acumulação diferencial de nutrientes por cinco cultivares de milho (Zea mays L.).

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ISBN 13 :
Total Pages : 91 pages
Book Rating : 4.:/5 (79 download)

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Book Synopsis Acumulação diferencial de nutrientes por cinco cultivares de milho (Zea mays L.). by : A. G. de ANDRADE

Download or read book Acumulação diferencial de nutrientes por cinco cultivares de milho (Zea mays L.). written by A. G. de ANDRADE and published by . This book was released on 1975 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: O presente trabalho foi desenvolvido com a finalidade de se aquilatar diferenças no crescimento, produção e acumulação e exportação de nutrientes, entre os cultivares Agroceres 256, Agroceres 504 (opaco-2), Contralmex, H-7974 e Piranao (br2br2), cultivados em condições de campo. O ensaio foi conduzido durante o ano agrícola 1972/73, no município de Piracicaba, Estado de São Paulo, Brasil, tendo como suporte um Regossol arenoso de media fertilidade, exceto em relação ao teor de K que e baixo. O delineamento experimental utilizado foi de blocos ao acaso com quatro repetições. Foram seguidas as praticas culturais comuns, e a adubação consistiu de 83g da formula 30 - 120 - 70, por metro linear no plantio, e 33 g/metro linear da formula 50 - 0 - 45, em cobertura, 22 dias após a germinação. A população de plantas foi de 50.000 por hectare. Plantas foram coletadas a partir dos 20 dias após a germinação, em intervalos de 20 dias, ate os 120 dias. As plantas colhidas foram divididas em "colmo + folhas", pandão e espiga, e analisadas quimicamente para N, P, K, Ca, Mg, S, Cu, Fe, Mn e Zn. Aos 80 dias após o plantio e no florescimento, foram coletadas as folhas (+4) e da inserção da espiga, respectivamente para fins de diagnose. Os dados obtidos e analisados estatisticamente permitem inferir as seguintes conclusões: Crescimento: cultivares com produções semelhantes, nas mesmas condições de solo e clima, acumulam matéria seca em quantidades similares. Os cultivares apresentam quantidades máximas de matéria seca variando ...

Aspectos agronomicos e fisiologicos de quatro cultivares de milho (Zea mays L.).

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ISBN 13 :
Total Pages : 45 pages
Book Rating : 4.:/5 (79 download)

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Book Synopsis Aspectos agronomicos e fisiologicos de quatro cultivares de milho (Zea mays L.). by : F.J. Falotico

Download or read book Aspectos agronomicos e fisiologicos de quatro cultivares de milho (Zea mays L.). written by F.J. Falotico and published by . This book was released on 1979 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foi conduzido um experimento com a finalidade de avaliar as populacoes do Composto Dentado, Composto Arquitetura e variedade Opaco 2 e seus cuzamentos, baseados principalmente nos fatores fenotipicos, e desta maneira, analisar o comportamento do desenvolvimento fisiologico das diversas partes da planta, em funcao da acumulacao de materia seca, nos diverso estagios do crescimento da planta. Os resultados darao subsidios ao melhoramento de populacoes heterogeneas, com objetivo de obter plantas com elevado teor proteico e plantas com arquitetura foliar modificada.

Fertilizing for High Yield and Quality

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ISBN 13 :
Total Pages : 240 pages
Book Rating : 4.:/5 (891 download)

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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.

Host Bibliographic Record for Boundwith Item Barcode 30112100650693 and Others

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ISBN 13 :
Total Pages : 444 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Host Bibliographic Record for Boundwith Item Barcode 30112100650693 and Others by :

Download or read book Host Bibliographic Record for Boundwith Item Barcode 30112100650693 and Others written by and published by . This book was released on 2013 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Micronutrients in Plant Physiology

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ISBN 13 : 9780853101796
Total Pages : 52 pages
Book Rating : 4.1/5 (17 download)

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Book Synopsis Micronutrients in Plant Physiology by : Ernest A. Kirkby

Download or read book Micronutrients in Plant Physiology written by Ernest A. Kirkby and published by . This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Brazilian journal of agricultural research

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ISBN 13 :
Total Pages : 642 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Brazilian journal of agricultural research by :

Download or read book Brazilian journal of agricultural research written by and published by . This book was released on 1988 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Drainage Principles and Applications

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ISBN 13 :
Total Pages : 1134 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Drainage Principles and Applications by : International Institute for Land Reclamation and Improvement

Download or read book Drainage Principles and Applications written by International Institute for Land Reclamation and Improvement and published by . This book was released on 1994 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text book brings together 26 chapters, 546 fugures, 166 tables, a glossary of 332 definitions. Being the result of ILRI's core business: bringing together the principles and applications of drainage, by giving international courses on drainage

Irrigation, Drainage and Salinity

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ISBN 13 :
Total Pages : 540 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Irrigation, Drainage and Salinity by : Food and Agriculture Organization of the United Nations

Download or read book Irrigation, Drainage and Salinity written by Food and Agriculture Organization of the United Nations and published by . This book was released on 1973 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Age and Gender Considerations in Psychiatric Diagnosis

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Publisher : American Psychiatric Pub
ISBN 13 : 1585626767
Total Pages : 580 pages
Book Rating : 4.5/5 (856 download)

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Book Synopsis Age and Gender Considerations in Psychiatric Diagnosis by : William E. Narrow

Download or read book Age and Gender Considerations in Psychiatric Diagnosis written by William E. Narrow and published by American Psychiatric Pub. This book was released on 2008-05-20 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written to help identify major gaps in our knowledge of how gender and age affect psychiatric diagnoses and to stimulate much-needed research to fill these gaps, Age and Gender Considerations in Psychiatric Diagnosis serves as both a valuable short-term source for the DSM-V Task Force and its disorder-specific workgroups, and a long-term guide for future studies that will contribute to revised psychiatric classifications in these three areas. Here, 47 experts present findings in three areas of psychiatric research that historically have been neglected but rightfully have received increasing attention in recent years and thus are worthy of investigation into their clinical features, etiology, and course: 1. Significant gender differences in prevalence, symptom profiles, and risk factors for mental disorders, including neurodevelopmental, neurophysiological, and environmental factors for men and women that cut across diagnostic categories-for example, the critical importance of gender in how psychiatric illness develops and presents; DSM's approach to gender to date; and relevant research findings and gaps in the epidemiology, etiology, and pathophysiology of disorders and the gender-related expression of psychopathology, including the controversial and complex question of whether DSM should have different diagnostic criteria for men and women. 2. Mental disorders in infancy and early childhood, including diagnosis and measurement of psychopathology; PTSD and social and cognitive factors related to the experience of stress; reactive attachment disorder (unique in part because of its specificity to early childhood); mood and anxiety disorders and difficulties in diagnosis; sleep disorders, including two new disorders, Night-Waking Dysomnia and Sleep-Onset Dysomnia; feeding disorders, including the need to address overeating and overfeeding (especially given the alleged U.S. epidemic of obesity); early childhood manifestations of behavior disorders; and early symptoms and diagnosis of autism. 3. Mental disorders in the elderly, such as dementia and depression, once considered normal consequences of aging but now understood to represent mental disorders, including the need to identify specific brain structure abnormalities, biomarkers, and the many contributing biological, psychosocial, and environmental factors of mental illness in late life and to understand their roles in the elderly to better diagnose and monitor disease progression. Written for clinicians and researchers alike, this thought-provoking compendium contributes critical information that helps enhance our understanding of the causes of mental disorders, develop effective preventive and treatment interventions, and inform future editions of DSM and ICD.

Principles of Plant Nutrition

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Publisher : Springer Science & Business Media
ISBN 13 : 9781402000089
Total Pages : 868 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Principles of Plant Nutrition by : Konrad Mengel (etc)

Download or read book Principles of Plant Nutrition written by Konrad Mengel (etc) and published by Springer Science & Business Media. This book was released on 2001-07-31 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant nutrition; The soil as a plant nutrient medium; Nutrient uptake and assimilation; Plant water relationships; Plant growth and crop production; Fertilizer application; Nitrogen; Sulphur; Phosphorus; Potassium; Calcium; Magnesium; Iron; Manganese; Zinc; Copper; Molybdenum; Boron; Further elements of importance; Elements with more toxic effects.

Growth Control in Woody Plants

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Publisher : Elsevier
ISBN 13 : 0080532683
Total Pages : 658 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Growth Control in Woody Plants by : Theodore T. Kozlowski

Download or read book Growth Control in Woody Plants written by Theodore T. Kozlowski and published by Elsevier. This book was released on 1997-01-21 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: The processes and mechanisms that control the growth of woody plants are of crucial importance for both economic and biological reasons. The comprehensive coverage of Growth Control in Woody Plants includes discussion of the growth controlling factors in both reproductive structures (flowers, fruit, seeds, pollen, etc.) and vegetative organs (stems, branches, leaves, and roots). Other major topics covered include seed germination, seedling growth, physiological and environmental regulation of growth, cultural practices, and biotechnology.This comprehensive treatment of the many factors that control the growth of woody plants can serve both as a valuable text and as a frequently used reference.* Includes comprehensive representation of a broad subject* Provides thorough bibliographic coverage * Well illustrated* Serves as a vital companion to Physiology of Woody Plants, Second Edition

Proximal Soil Sensing

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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.

The Physiology of Vegetable Crops, 2nd Edition

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Publisher : CABI
ISBN 13 : 1786393778
Total Pages : 511 pages
Book Rating : 4.7/5 (863 download)

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Book Synopsis The Physiology of Vegetable Crops, 2nd Edition by : Hans Christian Wien

Download or read book The Physiology of Vegetable Crops, 2nd Edition written by Hans Christian Wien and published by CABI. This book was released on 2020-05-01 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completely updated and revised, this bestselling book continues to explain the growth and developmental processes involved in the formation of vegetables. Since the publication of the successful first edition significant discoveries, particularly in the area of molecular biology, have deepened and broadened our knowledge and understanding of these processes. This new edition brings the topic up-to-date and is presented over two sections: the first provides general knowledge on germination, transplanting, flowering, the effects of stress and modelling, whilst the second section details the physiology of specific crops or crop groups.

Agriculture and Industry in Brazil

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Publisher : Columbia University Press
ISBN 13 : 0231549520
Total Pages : 308 pages
Book Rating : 4.2/5 (315 download)

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Book Synopsis Agriculture and Industry in Brazil by : Albert Fishlow

Download or read book Agriculture and Industry in Brazil written by Albert Fishlow and published by Columbia University Press. This book was released on 2020-08-04 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agriculture and Industry in Brazil is a study of the economics of Brazilian agriculture and industry, with a special focus on the importance of innovation to productivity growth. Albert Fishlow and José Eustáquio Ribeiro Vieira Filho examine technological change in Brazil, highlighting the role of public policy in building institutions and creating an innovation-oriented environment. Fishlow and Vieira Filho tackle the theme of innovation from various angles. They contrast the relationship between state involvement and the private sector in key parts of the Brazilian economy and compare agricultural expansion with growth in the oil and aviation sectors. Fishlow and Vieira Filho argue that modern agriculture is a knowledge-intensive industry and its success in Brazil stems from public institution building. They demonstrate how research has played a key role in productivity growth, showing how prudent innovation policies can leverage knowledge not only within a particular company but also across whole sectors of the economy. The book discusses whether and how Brazil can serve as a model for other middle-income countries eager to achieve higher growth and a more egalitarian distribution of income. An important contribution to comparative, international, and development economics, Agriculture and Industry in Brazil shows how the public success in agriculture became a prototype for advance elsewhere.

Brachiaria

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Publisher : CIAT
ISBN 13 : 9789589439579
Total Pages : 306 pages
Book Rating : 4.4/5 (395 download)

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Book Synopsis Brachiaria by : John W. Miles

Download or read book Brachiaria written by John W. Miles and published by CIAT. This book was released on 1996 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identifying and naming Brachiaria species. Morphology, taxonomy, and natural distribution of Brachiaria (Trin.) Griseb. Natural variation in Brachiaria and existing germplasm collections. The agronomy and physiology of Brachiaria species. National requirementes of Brachiaria and adaptation to acid soils. Nutrient cycling and environmental impact of Brachiaria Pastures. Pests and diseases of Brachiaria species. Nutritional quality and animal production of Brachiaria pastures. Reproductive physiology, seed production, and seed quality of Brachiaria. Seed production: perspective from the Brazilian private sector. Genetic, cytogenetics, and reproductive biology of Brachiaria. Manipulation of apomixis in Brachiaria breeding. Theoretical potential of biotechniques in crop improvement. Aplication of biothecnology to Brachiaria. Regional experience with Brachiaria: Tropical America-humid lowlands. Regional experience with Brachiaria: Tropical America-savannas. Regional experience with Brachiaria: Sub-savannas Africa. Regional experience with Brachiaria: Asia, the South Pacific, and Australia. Reports of working groups.