Adubações corretiva e de manutenção e seus efeitos em um solo de cerrado e na produção e qualidade do arroz (Oryza sativa L.).

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ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.:/5 (78 download)

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Book Synopsis Adubações corretiva e de manutenção e seus efeitos em um solo de cerrado e na produção e qualidade do arroz (Oryza sativa L.). by : G. J. A. Dario

Download or read book Adubações corretiva e de manutenção e seus efeitos em um solo de cerrado e na produção e qualidade do arroz (Oryza sativa L.). written by G. J. A. Dario and published by . This book was released on 1987 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: O presente trabalho visou analisar os efeitos de adubações corretiva e de manutenção nas propriedades químicas de um solo de cerrado com dois níveis de fertilidade e no comportamento de três cultivares de arroz. O experimento foi conduzido no ano agrícola de 1983/84, no Centro Nacional de Pesquisa de Arroz e Feijão - CNPAF/Embrapa, localizado no município de Goiânia-GO, de coordenadas 16o28' de latitude sul, 49o17' de latitude oeste e altitude de 840 metros. O delineamento experimental adotado nos dois locais foi um fatorial 3x2 em blocos ao acaso com quatro repetições. Os tratamentos constaram de três cultivares, IAC-165, CNA-791041 e IRAT-112, e duas formas de adubação: adubação de manutenção e adubação corretiva + manutenção. Na adubação corretiva foram aplicados 20t de matéria orgânica (palha de arroz), 3t de calcário dolomitico, 800 kg de superfosfato triplo, 20 kg de sulfato de zinco, 16 kg de sulfato de cobre, 9 kg de sulfato de manganês, 9 kg de boráx, 1 kg de molobdato de sódio e 0,5 kg de sulfato de cobalto por hectare. Na adubação de manutenção foram aplicados 40 kg de sulfato de amônio, 133 kg de superfosfato triplo, 53 kg de cloreto de potássio e 20 kg de sulfato de zinco por hectare, na semeadura, e 100 kg de sulfato de amônio por hectare, no perfilhamento, aos trinta dias após a emergência das plantas. Foram obtidos dados sobre o desenvolvimento das plantas e produção de grãos, qualidade das sementes, e realizadas análises químicas do solo antes e após a cultura do arroz. Os resultados, analisados estatisticamente, permitiram as seguintes conclusões: 1) Dentre os três cultivares utilizados, o cv. IAC-165 é o que melhor se adapta às diferentes condições de solo do cerrado, devido a sua maior produtividade e rendimento no beneficiamento. O cv. CNA-791041 e o cv. IRAT-112 são indicados apenas para solos de boa fertilidade. 2) Os grãos de arroz quando produzidos em condições favoráveis de cultivo, e armazenados adequadamente, poderão ser utilizados como sementes. 3) A adubação corretiva, como utilizada no experimento, melhora as propriedades químicas do solo. Em solo de baixa fertilidade e em condições adversas de cultivo, essa adubação é importante no aumento da produção de arroz. Em solo de alta fertilidade e em condições favoráveis de cultivo, a adubação corretiva prejudica a produção de arroz devido ao acamamento das plantas.

Agrindex

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ISBN 13 :
Total Pages : 546 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Agrindex by :

Download or read book Agrindex written by and published by . This book was released on 1988 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Efeito da adubação potássica em cultivares do arroz (Oryza sativa L.) de sequeiro sob défict hídrico, em solo sob cerrado

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ISBN 13 :
Total Pages : 165 pages
Book Rating : 4.:/5 (467 download)

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Book Synopsis Efeito da adubação potássica em cultivares do arroz (Oryza sativa L.) de sequeiro sob défict hídrico, em solo sob cerrado by : Ataide Garcia de Carvalho Junior

Download or read book Efeito da adubação potássica em cultivares do arroz (Oryza sativa L.) de sequeiro sob défict hídrico, em solo sob cerrado written by Ataide Garcia de Carvalho Junior and published by . This book was released on 1987 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Efeito de micronutrientes no rendimento e na composicao quimica do arroz (Oryza sativa L.) em um solo de cerrado

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ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (79 download)

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Book Synopsis Efeito de micronutrientes no rendimento e na composicao quimica do arroz (Oryza sativa L.) em um solo de cerrado by : E. Z. Galrao

Download or read book Efeito de micronutrientes no rendimento e na composicao quimica do arroz (Oryza sativa L.) em um solo de cerrado written by E. Z. Galrao and published by . This book was released on with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Integrated Management and Biocontrol of Vegetable and Grain Crops Nematodes

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Publisher : Springer Science & Business Media
ISBN 13 : 1402060637
Total Pages : 364 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Integrated Management and Biocontrol of Vegetable and Grain Crops Nematodes by : A. Ciancio

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.

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.

Plant Nematology, 3rd Edition

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Publisher : CABI
ISBN 13 : 1800622422
Total Pages : 661 pages
Book Rating : 4.8/5 (6 download)

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Book Synopsis Plant Nematology, 3rd Edition by : Roland N. Perry

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.

Nematode Interactions

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Publisher : Springer Science & Business Media
ISBN 13 : 9401114889
Total Pages : 388 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Nematode Interactions by : M. Wajid Khan

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.

Soil Management for Sustainability

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ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Soil Management for Sustainability by : R. Lal

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