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Efeito Do Preparo Do Solo E Da Rotacao De Cultura Sobre O Rendimento Do Feijoeiro Irrigado
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Book Synopsis Efeito do preparo do solo e da rotacao de cultura sobre o rendimento do feijoeiro irrigado by : P. M. de SILVEIRA
Download or read book Efeito do preparo do solo e da rotacao de cultura sobre o rendimento do feijoeiro irrigado written by P. M. de SILVEIRA and published by . This book was released on 1998 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influência do preparo do solo e de rotação de culturas no feijoeiro by : P. M. da SILVEIRA
Download or read book Influência do preparo do solo e de rotação de culturas no feijoeiro written by P. M. da SILVEIRA and published by . This book was released on 2002 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: O objetivo deste trabalho foi identificar os efeitos de sistemas de preparo do solo e de rotações de culturas sobre o rendimento de grãos e economicidade da cultura do feijoeiro (Phaseolus vulgaris L.) irrigado pelo sistema pivô central. O trabalho foi conduzido durante seis anos consecutivos no Centro Nacional de Pesquisa de Arroz e Feijão (CNPAF), localizado no município de Santo Antônio de Goiás (GO), em Latossolo Vermelho-Escuro, de textura argilosa. O experimento consistiu de um fatorial 4x6, em delineamento inteiramente casualizado com parcelas subdivididas. Os sistemas de preparo do solo foram: P1 - arado de aiveca (novembro-dezembro) alternado com grade aradora (maio-junho), P2 - arado de aiveca contínuo, P3 - grade aradora contínua, e P4 - plantio direto, e as rotações de culturas: R1 - arroz-feijão, R2 - milho-feijão, R3 - soja-trigo, R4 - soja-trigo-soja-feijão-arroz-feijão, R5 - arroz consorciado com calopogônio-feijão e R6 - milho-feijão-milho-feijão-arrozfeijão. As rotações R1, R2, R3 e R5 foram anuais e as R4 e R6, trienais. Neste trabalho analisaram-se somente as rotações que continham feijão. O arroz, o milho e a soja foram semeados em novembro-dezembro (verão) e o feijão e o trigo em maio-junho (inverno). Houve efeito do preparo do solo e das rotações de cultura sobre o rendimento de grãos do feijoeiro. A cultura produziu mais quando se utilizou no preparo do solo a combinação de arado de aiveca, nos plantios de verão, e grade aradora nos de inverno. Os rendimentos do feijoeiro foram maiores quando a cultura foi implantada bienalmente na mesma área, nas rotações com arroz/calopogônio e arroz, e menores nas rotações com milho. O feijoeiro irrigado, com relação ao preparo do solo e rotações de culturas foi economicamente viável, propiciando taxas de retorno que variaram de 67% a 97%.
Book Synopsis Efeitos de preparo e rotação de culturas em atributos do solo e na produtividade do feijoeiro irrigado by : A. N. da SILVEIRA NETO
Download or read book Efeitos de preparo e rotação de culturas em atributos do solo e na produtividade do feijoeiro irrigado written by A. N. da SILVEIRA NETO and published by . This book was released on 2004 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atualmente, na região dos cerrados" é crescente a utilização do plantio direto. Este sistema é composto por um conjunto ordenado de ações, cujo resultado almejado é a sustentabilidade agrícola. Entretanto, a utilização contínua do plantio direto, com freqüente insuficiência de palha sobre o solo, aliado às sucessivas adubações superficiais, tem resultado em alguns problemas, tais como, compactação e concentração de nutrientes na superfície do solo, com conseqüente redução no potencial produtivo das culturas. Isto tem feito com que alguns agricultores da região usem, eventualmente, o arado para ajudar na descompactação. Em razão destes problemas detectados, o objetivo deste trabalho foi estudar os efeitos de dois sistemas de preparo do solo e quatro rotações de culturas sobre os atributos físicos e químicos e sobre a produtividade do feijoeiro irrigado, no inverno. O experimento foi conduzido por cinco anos consecutivos, durante os quais se efetuaram dez cultivos, em um Latossolo Vermelho distrófico, em Santo Antônio de Goiás, GO. Utilizou-se o delineamento inteiramente casualizado, com quatro repetições e esquema fatorial2 x 4, em parcelas subdivididas. As parcelas foram constituídas pelos sistemas de preparo: (PI) plantio direto seguido anualmente de um preparo com arado e (P2) plantio direto contínuos e as subparcelas, pelas rotações: (R1 milheto - feijão - milheto - feijão -arroz - feijão - milheto - feijão - milheto - feijão; (R2) milheto - feijão - soja - feijão - arroz - feijão - milheto - feijão - soja - feijão; (R3) milheto - feijão - milho - feijão -arroz - feijão - milheto - feijão - milho - feijão e R4) soja - feijão - milho - feijão -arroz - feijão - soja - feijão - milho - feijão. O plantio direto contínuo contribuiu para maiores valores de pH, Ca, Mg, P, K e matéria orgânica (M.O.) na camada superficial. Ademais, diminuiu a macroporosidade e aumentou a densidade do solo. Isto contribuiu para que, nos primeiros anos, a produtividade acumulada do feijoeiro tenha sido decrescente no plantio direto contínuo em relação à obtida com o plantio direto seguido anualmente de um preparo com arado. Esta tendência foi menos acentuada e revertida mais rapidamente a partir do terceiro ano de cultivo, nas rotações que incluíam milheto. Assim, na média dos cinco anos de cultivo, a produtividade do feijoeiro sob plantio direto contínuo foi 13% superior à obtida no plantio direto seguido anualmente de um preparo com arado. Entre as rotações, a menor produtividade do feijoeiro foi verificada na que incluiu, conjuntamente, milheto e milho. Presently the utilization of no-tillage system increasing in the Cerrados Region. This system is formed by a sequenced set of activities directed to agriculture sustainability. Continuous no-tillage, however, with frequent lack of straw over the soil in addition to successive superficial fertilizer applications has resulted in some problems such as compaction and superficial nutrient concentration decreasing crop potential yield. Consequently, some farmers have been using moldboard plow to avoid compaction. The objective of this study was to evaluate the effects of two soil preparation procedures and four crop rotation systems over soil chemical and physical attributes as well as on yield of irrigated common bean planted in the winter. The experiment was conducted for five consecutive years with ten crop seasons in a Dystrophic Red Latosol in Santo Antônio de Goiás; GO in a completely randomized design with four replications arranged in a 2 x 4 factorial split plot. Preparation systems were assigned to plots: (P1) no-tillage followed by plowing and (P2) continuous no-tillage; and crop rotation was assigned to subplots: (R1) millet - common bean - millet - common bean - rice - common bean - millet - common bean - millet - common bean, (R2) millet - common bean - soybean - common bean - rice - common bean - millet -common bean - com - common bean, (R3) millet - common bean - millet - common bean -rice - common bean - com - common bean, and (R4) soybean - common bean - com -common bean - rice - common bean - soybean - common bean com - common bean. Continuous no-tillage contributed to higher values of pH, Ca, Mg, P, K and organic matter in soil surface layer. In addition, it decreased macro porosity and increased soil bulk density. Thus, during the first years cumulated common bean yield decreased with continuous no-tillage in relation to that obtained with no-tillage followed by plowing. This tendency was less strong and reversed more rapidly after the third cultivation year, in crop rotations using millet. So, in average of five cropping years, common bean yield under no-tillage was 13% higher than yield obtained when no-tillage was followed by plowing. Among the rotation systems, the lowest common bean yield was obtained in the rotation that included millet and corn.
Book Synopsis Influência de sistemas agrícolas em características do solo e na resposta do feijoeiro (Phaseolus vulgaris L.) irrigado à adubação nitrogenada em cobertura by : C. C. da SILVA
Download or read book Influência de sistemas agrícolas em características do solo e na resposta do feijoeiro (Phaseolus vulgaris L.) irrigado à adubação nitrogenada em cobertura written by C. C. da SILVA and published by . This book was released on 1998 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Avaliou-se a influencia de quatro sistemas agrícolas na resposta do feijoeiro irrigado, cultivar Aporé, a adubação nitrogenada. Os sistemas foram A - rotação milho-feijão, preparo do solo com arado de aiveca no verão e grade aradora no inverno; B - rotação arroz-feijão, preparo do solo com arado de aiveca em todos os plantios; C - rotação arroz/calopogonio-feijão, preparo do solo com grade aradora em todos os plantios; e D - rotação milho-feijão, em plantio direto contínuo.
Book Synopsis Sistemas de Preparo de Solo by : O. Coan
Download or read book Sistemas de Preparo de Solo written by O. Coan and published by . This book was released on 1995 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: O cultivo do feijoeiro e do milho é praticado em larga escala no país, entretanto, são poucos os trabalhos que procuram relacionar os efeitos dos sistemas de preparo de solo no comportamento das plantas e do próprio solo. Os ensaios foram conduzidos na Área Demonstrativa Experimental de Irrigação (ADEI) da UNESP - Campus Jaboticabal, SP, durante o período de março de 1992 a junho de 1994, utilizando-se delineamento estatístico tipo inteiramente casualizado (DIC) com cinco tratamentos e quatro repetições, caracterizados como: preparo convencional com arado de disco (S1) e arado aiveca (S2); preparo conservacionista com arado escarificador (S3); grade aradora (S4) e enxada rotativa (S5). As determinações de campo envolveram os seguintes parâmetros: densidade do solo, resistência mecânica do solo à penetração, área mobilizada no solo, área de elevação e empolamento do solo, espessura média da camada mobilizada, índice de rugosidade, diâmetro médio geométrico e módulo de finura dos agregados, incorporação de resíduos e produção de plantas. As análises dos resultados obtidos permitiram verificar que os equipamentos utilizados se apresentaram com diferentes capacidades de mobilização e desagregação do solo com influência sobre a rugosidade superficial e na formação de camadas compactadas. Os tratamentos utilizados nos ensaios provocaram alterações no comportamento das plantas, quanto a população inicial, crescimento, produção de matéria seca e de grãos, destacando-se aqueles conduzidos com arado de aiveca e enxada rotativa para a cultura do feijoeiro e arado de aiveca para a cultura do milho.
Book Synopsis Impacto de sistemas agrícolas na produtividade do feijoeiro irrigado e na qualidade biológica do solo by : MOZANIEL BATISTA DA SILVA SILVA
Download or read book Impacto de sistemas agrícolas na produtividade do feijoeiro irrigado e na qualidade biológica do solo written by MOZANIEL BATISTA DA SILVA SILVA and published by . This book was released on 2006 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Avaliaram-se indicadores biológicos do solo, culturas de cobertura e adubação nitrogenada do feijoeiro em sistema plantio direto e convencional. O experimento foi conduzido na Fazenda Capivara - Embrapa Arroz e Feijão, no município de Santo Antônio de Goiás, GO, em Latossolo Vermelho distrófico. Empregaram-se braquiária, braquiária consorciada com milho, guandu, milheto, capim mombaça, sorgo, estilosantes como culturas de cobertura, tendo como tratamento de referência a mata nativa próxima. Avaliou-se o efeito de nitrogênio na forma de uréia comercial, aplicada em cobertura, incorporada e não incorporada no estádio de florescimento, sobre os componentes de rendimento do feijoeiro.
Download or read book Acta Scientiarum written by and published by . This book was released on 2003 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Compaction in Crop Production by : B.D. Soane
Download or read book Soil Compaction in Crop Production written by B.D. Soane and published by Elsevier. This book was released on 2013-10-22 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a global review of the mechanisms, incidence and control measures related to the problems of soil compaction in agriculture, forestry and other cropping systems. Among the disciplines which relate to this subject are soil physics, soil mechanics, vehicle mechanics, agricultural engineering, plant physiology, agronomy, pedology, climatology and economics.The volume will be of great value to soil scientists, agricultural engineers, and all those involved with irrigation, drainage and tillage. It will help to facilitate the exchange of information on current work throughout the world, as well as to promote scientific understanding and stimulate the development, evaluation and adoption of practical solutions to these widespread and urgent problems.
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.
Author :Raphael A. Viscarra Rossel Publisher :Springer Science & Business Media ISBN 13 :9048188598 Total Pages :440 pages Book Rating :4.0/5 (481 download)
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.
Book Synopsis Crop Evolution, Adaptation and Yield by : L. T. Evans
Download or read book Crop Evolution, Adaptation and Yield written by L. T. Evans and published by Cambridge University Press. This book was released on 1996-05-02 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this major 1993 work, Lloyd Evans provides an integrated view of the domestication, adaptation and improvement of crop plants, bringing together genetic diversity, plant breeding, physiology and aspects of agronomy. Considerations of yield and maximum yield provide continuity throughout the book. Food, feed, fibre, fuel and pharmaceutical crops are all discussed. Cereals, grain legumes and root crops, both temperate and tropical, provide many of the examples, but pasture plants, oilseeds, leafy crops, fruit trees and others are also considered. After the introductory chapter, the increasing significance of crop yields to the world's food supply is highlighted. The next three chapters consider changes to crop plants over the last ten thousand years, including domestication, adaptation and improvement. Aimed at research workers and advanced students in crop physiology and ecology, agronomy and plant breeding, this book also reaches conclusions of relevance to those concerned with developmental policy, agricultural research and management, environmental quality, resource depletion and human history.
Book Synopsis Australian Journal of Agricultural Research by :
Download or read book Australian Journal of Agricultural Research written by and published by . This book was released on 2000 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sustainable Living with Environmental Risks by : Nobuhiro Kaneko
Download or read book Sustainable Living with Environmental Risks written by Nobuhiro Kaneko and published by Springer. This book was released on 2014-03-11 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are not free from environmental risks that accompany the development of human societies. Modern economic development has accelerated environmental pollution, caused loss of natural habitats, and modified landscapes. These environmental changes have impacted natural systems: water and heat circulation, nutrient cycling, and biodiversity. These changes in natural systems degrade ecosystem services and subsequently increase environmental risks for humans. Environmental risks, therefore, are not only human health risks by pollution, climatic anomalies and natural disasters, but also degradation of ecosystem services on which most people are relying for their lives. We cannot entirely eliminate the risks, because it is not possible to attain zero impact on the environment, but we need to find a mechanism that minimizes environmental risks for human sustainably. This is the idea of the interdisciplinary framework of “environmental risk management” theory, which advocates harmony between economic development and environmental conservation. Based on this theory, the Sustainable Living with Environmental Risk (SLER) programme, adopted by the Japanese Ministry of Education (MEXT) as one of its strategic programmes, has been training graduate students at the Yokohama National University, Japan, from 2009 to 2013 to become future environmental leaders who will take the initiative in reducing the level of environmental risks and in protecting natural resources in the developing nations of Asia and Africa. This book provides students and teachers of this new academic field with a comprehensive coverage of case studies of environmental risks and their practical management technologies not only in Japan but also in developing nations in Asia and Africa.
Author :American Society of Civil Engineers. Technical Committee on Irrigation Water Requirements Publisher : ISBN 13 : Total Pages :236 pages Book Rating :4.3/5 (91 download)
Book Synopsis Consumptive Use of Water and Irrigation Water Requirements by : American Society of Civil Engineers. Technical Committee on Irrigation Water Requirements
Download or read book Consumptive Use of Water and Irrigation Water Requirements written by American Society of Civil Engineers. Technical Committee on Irrigation Water Requirements and published by . This book was released on 1973 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Southern Forages by : Donald M. Ball
Download or read book Southern Forages written by Donald M. Ball and published by . This book was released on 1996 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Translations written by and published by . This book was released on 1981 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agricultural Compendium for Rural Development in the Tropics and Subtropics by :
Download or read book Agricultural Compendium for Rural Development in the Tropics and Subtropics written by and published by Elsevier Science & Technology. This book was released on 1985 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ilaco handbook
