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Calibracao De Nitrogenio Para O Trigo Em Solo Do Distrito Federal
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Book Synopsis Calibração de nitrogênio para o trigo, em solo do Distrito Federal by : MARIA FERNANDA SCIAN MENEGHIN Meneghin
Download or read book Calibração de nitrogênio para o trigo, em solo do Distrito Federal written by MARIA FERNANDA SCIAN MENEGHIN Meneghin and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Avaliacao de mineralizacao e disponibilidade de nitrogenio para o trigo (Triticum aestivum L.) em solos do Distrito Federal by : S. A. de OLIVEIRA
Download or read book Avaliacao de mineralizacao e disponibilidade de nitrogenio para o trigo (Triticum aestivum L.) em solos do Distrito Federal written by S. A. de OLIVEIRA and published by . This book was released on 1987 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objetivos: a) avaliar a mineralizacao do nitrogenio proveniente da materia organica de solos do Distrito Federal, em condicoes de campo e de laboratorio; b) estudar a correlacao entre nitrogenio absorvida pelo trigo e o nitrogenio do solo mediante o uso de diferentes extratores quimicos e metodos de incubacao; c) elaborar uma matematica para a determinacao da necessidade de adubacao nitrogenada para o trigo em funcao dos teores de nitrogenio do solo.
Book Synopsis Avaliação da disponibilidade de nitrogênio para o milho (Zea mays) em solo do Distrito Federal by :
Download or read book Avaliação da disponibilidade de nitrogênio para o milho (Zea mays) em solo do Distrito Federal written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Com o objetivo de realizar o estudo de calibração do nitrogênio do solo, por meio de diferentes extratores químicos para o milho, foi instalado um experimento em um Latossolo Vermelho-Amarelo de textura argilosa, no ano agrícola 2004/2005, na Fazenda Água Limpa/UnB. O delineamento experimental utilizado foi o de blocos ao acaso, com seis tratamentos de N (0-70-140-210-280-350 kg ha-1). Foram coletadas amostras de solo, no total de 10 amostras por parcela, nas profundidades de 0-20 cm e 20-40 cm, as quais foram utilizadas no teste de calibração. Dentre os extratores químicos testados, os que apresentaram maior correlação com a produtividade do milho foram: H2O2/MnO2 (R2 = 0,821+); KCl 2M (R2 = 0,788+) e solução tampão pH = 11,2 + NO3- (R2 = 0,775+), sendo o método da solução tampão pH = 11,2 + NO3- o mais recomendado para análise de rotina, por ser um método rápido e simples. A produtividade do milho foi afetada positivamente pela adubação nitrogenada, com rendimentos crescentes até 210 kg N ha-1. A dose econômica de N, considerando a relação preço do N/preço do produto de 11/1 até 9/1, variou de 56 kg N ha-1 até 83 kg N ha-1, respectivamente.
Book Synopsis Avaliação da disponibilidade de nitrogênio para o milho (Zea mays) em solo do Distrito Federal by : D. D. Serra
Download or read book Avaliação da disponibilidade de nitrogênio para o milho (Zea mays) em solo do Distrito Federal written by D. D. Serra and published by . This book was released on 2006 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ao contrário do que ocorre com outros macronutrientes primários, a análise de solo não fornece parâmetros seguros para prever as esposts à aplicação de nitrogênio. Com o objetivo de realizar o estudo de calibração do nitrogênio do solo, por meio de diferentes extratores químicos para o milho, foi instalado um experimento em um Latossolo Vermelho-Amarelo de textura argilosa, no ano agrícola de 2004/2005, na Fazenda Água Limpa/UnB. O delineamento experimental utilizado foi o de blocos ao acaso, com seis tratamentos de N (0-70-140-210-280-350 Kg ha-1). Foram coletadas amostras de solo nas profundidades de 0-20 cm e 20-40 cm, as quais foram utilizadas no teste de calibração. Dentre os extratores químicos testados, os que apresentam maior correlação com a produtividade do milho foram: h2O2/MnO2 (R2 = 0,821+); KC1 2M (R2 = 0,788+) e solução tampão pH = 11,2 + NO3- (R2 = 0,775+), sendo o método da solução tampão pH = 11,2+ NO3- o mais recomendao para análise de rotina, por ser um método rápido e simples. As menores correlaçãoes observadas foram para o NO3- + NH4+ trocável, estraído pelo KC1 1N (R = 0,718), indicando que quando analisado individualmente, não é o índice mais apropriado para fins de adubação nitrogênada. A produtividade do milho foi afetada positivamente pela dubação nitrogenada, com rendimentos crescentees até 210 kg N ha-1. A dose econômica de N, considerando a relação preço do N/perço do produto de 11/1 até 9/1, variou de 56 kg N ha-1, respectivamente.
Book Synopsis Forage Plant Ecophysiology by : Cory Matthew
Download or read book Forage Plant Ecophysiology written by Cory Matthew and published by MDPI. This book was released on 2018-03-16 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Forage Plant Ecophysiology" that was published in Agriculture
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 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Pioneering Soil Erosion Prediction by : John M. Laflen
Download or read book Pioneering Soil Erosion Prediction written by John M. Laflen and published by . This book was released on 2003 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis Predicting Rainfall Erosion Losses by : Walter H. Wischmeier
Download or read book Predicting Rainfall Erosion Losses written by Walter H. Wischmeier and published by . This book was released on 1978 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Universal Soil Loss Equation (USLE) enables planners to predict the average rate of soil erosion for each feasible alternative combination of crop system and management practices in association with a specified soil type, rainfall pattern, and topography. When these predicted losses are compared with given soil loss tolerances, they provide specific guidelines for effecting erosion control within specified limits. The equation groups the numerous interrelated physical and management parameters that influence erosion rate under six major factors whose site-specific values can be expressed numerically. A half century of erosion research in many States has supplied information from which at least approximate values of the USLE factors can be obtained for specified farm fields or other small erosion prone areas throughout the United States. Tables and charts presented in this handbook make this information readily available for field use. Significant limitations in the available data are identified.
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.
Book Synopsis Agroecosystem Diversity by : Gilles Lemaire
Download or read book Agroecosystem Diversity written by Gilles Lemaire and published by Academic Press. This book was released on 2018-10-08 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agro-Ecosystem Diversity: Impact on Food Security and Environmental Quality presents cutting-edge exploration of developing novel farming systems and introduces landscape ecology to agronomy. It encompasses the broad range of links between agricultural development and ecological impact and how to limit the potential negative results. Presented in seven sections, each focusing on a specific challenge to sustaining diversity, the book provides insights toward the argument that by re-introducing diversity, it should be possible to maintain a high level of productivity of agro-ecosystems while also maintaining and/or restoring a satisfactory level of environment quality and biodiversity. Demonstrates that diversified agro-ecosystems can be intensified with environmental quality preserved, restored and enhanced Includes analysis of economic constraints leading to specialization of farms and regions and the social locking forces resisting to diversification of agro-ecosystems Presents a global vision of world agriculture and the tradeoff between a necessary increase in food production and restoring environment quality
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 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:
Book Synopsis Selected Chapters from the Unedited Text of the Soil Taxonomy of the National Cooperative Soil Survey by : United States. Soil Conservation Service
Download or read book Selected Chapters from the Unedited Text of the Soil Taxonomy of the National Cooperative Soil Survey written by United States. Soil Conservation Service and published by . This book was released on 1971 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Ecotoxicology by : Joseph Tarradellas
Download or read book Soil Ecotoxicology written by Joseph Tarradellas and published by CRC Press. This book was released on 1996-12-23 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils are receptacles for a wide range of hazardous chemicals generated by human activities. Whether or not this contamination is deliberate, accurate toxicity assessments are important for health and economic reasons. Soil Ecotoxicology discusses the sources, fate, and transport of hazardous chemicals in soils. The fate (biodegradation and modeling) and the potential impacts of pesticides on soil ecosystems are emphasized, and methodologies for performing toxicity assessments are provided.
Book Synopsis Osmolytes and Plants Acclimation to Changing Environment: Emerging Omics Technologies by : Noushina Iqbal
Download or read book Osmolytes and Plants Acclimation to Changing Environment: Emerging Omics Technologies written by Noushina Iqbal and published by Springer. This book was released on 2015-12-16 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continual change in climatic conditions induces a series of adaptations in plants to suit the unfavorable conditions for sustainable agriculture. For sustainable agriculture, it is important to unravel the precise mechanism(s) that disturb the homeostatic equilibrium at cellular and molecular level and also to enhance understanding to build strategies for the tolerance of plants. Osmolytes have long been identified as pivotal abiotic stress busters because of their role in plants in overcoming extremely harsh environmental conditions. This edited compilation attempts to put forth the scattered knowledge on osmolytes and their role in abiotic stress tolerance together and disseminate as a package to deal with the problems of lower productivity under stressful environment. It will enhance the understanding on osmolytes function and bioengineering of plants for abiotic stress tolerance. The book covers very interesting topics dealing with various osmolytes and the mechanistic approach for abiotic stress tolerance to pave the path of agricultural scientists, breeders for developing high yielding sustainable transgenic crops.
