Download or read book Nutrient Uptake by Competing Roots in Soil written by John Paul Baldwin and published by . This book was released on 1972 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solute Movement in the Soil root System written by Peter Hague Nye and published by Univ of California Press. This book was released on 1977 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Root and Soil Properties on the Uptake of Nutrients by Competing Roots written by F. E. T. Sanders and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Root Ecology written by Hans de Kroon and published by Springer Science & Business Media. This book was released on 2003-05-21 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the course of evolution, a great variety of root systems have learned to overcome the many physical, biochemical and biological problems brought about by soil. This development has made them a fascinating object of scientific study. This volume gives an overview of how roots have adapted to the soil environment and which roles they play in the soil ecosystem. The text describes the form and function of roots, their temporal and spatial distribution, and their turnover rate in various ecosystems. Subsequently, a physiological background is provided for basic functions, such as carbon acquisition, water and solute movement, and for their responses to three major abiotic stresses, i.e. hard soil structure, drought and flooding. The volume concludes with the interactions of roots with other organisms of the complex soil ecosystem, including symbiosis, competition, and the function of roots as a food source.
Download or read book Plant Root Systems written by R. Scott Russell and published by McGraw-Hill Companies. This book was released on 1977 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The physiological background; Relationships between roots and shoots; The groeth and form of root systems; The absorption and transport of nutrients; The water relations of plant root systems; Relationships between plant roots and the rhizosphere flora; The soil environment; Mechanical impedance of root growth; Effects of anaerobic soil conditions; The soil/root interface; Traditional and modern methods of tillage; Reduced cultivation, soil conditions and crop growth.
Download or read book Nutrient Acquisition by Plants written by Hormoz BassiriRad and published by Springer Science & Business Media. This book was released on 2005-12-30 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an integrated review of the mechanisms controlling plant nutrient uptake and how plants respond to changes in the environment. Among key topics covered are: soil nutrient bioavailability; root responses to variations in nutrient supply; nitrogen fixation; root architecture; life span; mycorrhizae; responses to climate change. The book helps us understand the mechanisms that govern present-day plant communities and to predict the response of plants to a changing climate.
Download or read book The Soil Root Interface written by J. L. Harley and published by Academic Press. This book was released on 2013-10-22 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Soil-Root Interface contains the proceedings of an international symposium held in Oxford, England, on March 28 to 31, 1978. The first five chapters of this book contain the majority of papers presented at the meeting, as well as the descriptions of displayed posters and films. Abstracts of other contributions offered by participants but not read at the meeting form the final chapter. The first five parts cover topics on nutrient demand and supply at the soil root interface; physics and chemistry of the interfacial region; biological activities at the interface; the interface in relation to environmental stress and disease; and the interface in relation to soil function and growth.
Download or read book The Role of Plant Roots in Crop Production written by Nand Kumar Fageria and published by CRC Press. This book was released on 2012-07-23 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Role of Plant Roots in Crop Production presents the state of knowledge on environmental factors in root growth and development and their effect on the improvement of the yield of annual crops. This book addresses the role of roots in crop production and includes references to numerous annual crops. In addition, it brings together the issues and the state-of-the-art technologies that affect root growth, with comprehensive reviews to facilitate efficient, sustainable, economical, and environmentally responsible crop production. Written for plant scientists, crop scientists, horticulturalists, and soil scientists, plant physiologists, breeders, environmental scientists, agronomists, and undergraduate and graduate students in different disciplines of agricultural science, The Role of Plant Roots in Crop Production: Addresses root architecture and development dynamics to help users improve crop productivity Emphasizes crop production, plant nutrition, and soil chemistry relative to root growth and functions Covers root morphology, root functions, nutrient and water uptake by roots, root-soil interactions, root-environment interactions, root-microbe interactions, physiology of root crops, and management practices to improve root growth Supports content with experimental results, and additional data is presented with pictures Increasing food production worldwide has become a major issue in the 21st century. Stagnation in grain yield of important food crops in recent years in developed, as well as developing, countries has contributed to a sharp increase in food prices. Furthermore, higher grain yield will be needed in the future to feed a burgeoning world population with a rising standard of living that requires more grain per capita. Technologies that enhance productivity, ensure environmental safety, and conserve natural resources are required to meet this challenge.
Download or read book Roots The Hidden Provider written by Janin Riedelsberger and published by Frontiers Media SA. This book was released on 2017-08-16 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Farmer Innovation in Africa written by Chris Reij and published by Routledge. This book was released on 2014-07-10 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of Africa's major untapped resources is the creativity of its farmers. This book presents a series of clear and detailed studies that demonstrate how small-scale farmers, both men and women, experiment and innovate in order to improve their livelihoods, despite the adverse conditions and lack of appropriate external support with which they have to contend. The studies are based on fieldwork in a wide variety of farming systems throughout Africa, and have been written primarily by African researchers and extension specialists. Numerous lively examples show how a participatory approach to agricultural research and development that builds on local knowledge and innovation can stimulate the creativity of all involved - not only the farmers. This approach, which recognizes the farmers' capacity to innovate as the crucial component of success, provides a much-needed alternative to the conventional 'transfer of technology' paradigm. This book is a rich source of case studies and analyses of how agricultural research and development policy can be changed. It presents evidence of the resilience and resolution of rural communities in Africa and will be an inspiration for development workers, researchers and policy-makers, as well as for students and teachers of agriculture, environment and sustainable development.
Download or read book Soil Nutrient Bioavailability written by Stanley A. Barber and published by John Wiley & Sons. This book was released on 1995-04-03 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This richly illustrated edition of an established classic deals with the chemistry and biology of soil nutrient availability. Provides information regarding the elements present in soils and the extent to which these elements can be used by plants in order to grow. Nutrient uptake by plant roots, rhizosphere microorganisms and application of the mechanistic uptake model as well as such elements as phosphorus, potassium and water are among the topics discussed.
Download or read book Uptake of Nutrients by Plant Roots Growing in the Soil written by M. C. Drew and published by . This book was released on 1966 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solute Movement in the Rhizosphere written by P. B. Tinker and published by Oxford University Press. This book was released on 2000-03-02 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a completely revised edition of the previously titled Solute Movement in the Soil-Root System. It describes in detail how plant nutrients and other solutes move in the soil in response to plant uptake, and it provides a basis for understanding processes in the root zone so that they can be modeled realistically in order to predict the effects of variations in natural conditions or our own practices.
Download or read book Ecophysiology of root systems environment interaction written by Boris Rewald and published by Frontiers E-books. This book was released on 2014-09-03 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a scarcity of detailed information regarding the ecophysiology of root systems and the way root system functioning is affected by both internal and external factors. Furthermore, global climate change is expected to increase the intensity of climate extremes, such as severe drought, heat waves and periods of heavy rainfall; in addition other stresses such as salinization of soils are increasing world-wide. Recently an increasing awareness has developed that understanding plant traits will play a major role in breeding of future crop plants. For example, there is increasing evidence that the traits of root systems are defined by the properties of individual roots. However, further knowledge on the functional importance of root segments and the molecular/physiological mechanisms underlying root system functioning and persistence is needed, and would specifically allow modifying (crop) root system functionality and efficiency in the future. Another major gap in knowledge is localized at the root-soil interface and in regard to the potential adaptive plasticity of root-rhizosphere interactions under abiotic stress and/or competition. It is currently unknown whether adaptations in microbe communities occur, for example due to modified exudation rates, and what are the subsequent influences on nutrient mobilization and uptake. Furthermore, uncovering the mechanisms by which roots perceive neighboring roots may not only contribute to our understanding of plant developmental strategies, but also has important implications on the study of competitive interactions in natural communities, and in optimizing plant performance and resource use in agricultural and silvicultural systems. In this Research Topic, we aimed to provide an on-line, open-access snapshot of the current state of the art of the field of root ecology and physiology, with special focus on the translation of root structure to function, and how root systems are influenced by interplay with internal and external factors such as abiotic stress, microbes and plant-plant interaction. We welcomed original research papers, but reviews of specific topics, articles formulating opinions or describing cutting-edge methods were also gladly accepted.
Download or read book The Rhizosphere written by Zoe G. Cardon and published by Elsevier. This book was released on 2011-04-28 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Below the soil surface, the rhizosphere is the dynamic interface among plant roots, soil microbes and fauna, and the soil itself, where biological as well as physico-chemical properties differ radically from those of bulk soil. The Rhizosphere is the first ecologically-focused book that explicitly establishes the links from extraordinarily small-scale processes in the rhizosphere to larger-scale belowground patterns and processes. This book includes chapters that emphasize the effects of rhizosphere biology on long-term soil development, agro-ecosystem management and responses of ecosystems to global change. Overall, the volume seeks to spur development of cross-scale links for understanding belowground function in varied natural and managed ecosystems. - First cross-scale ecologically-focused integration of information at the frontier of root, microbial, and soil faunal biology - Establishes the links from extraordinarily small-scale processes in the rhizosphere to larger-scale belowground patterns and processes - Includes valuable information on ecosystem response to increased atmospheric carbon dioxide and enhanced global nitrogen deposition - Chapters written by a variety of experts, including soil scientists, microbial and soil faunal ecologists, and plant biologists
Download or read book Roots Plant Production and Nutrient Use Efficiency written by Peter de Willigen and published by . This book was released on 1987 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical solutions are given for simple and more complicated soil-root geometries.
Download or read book Plant Physiological Ecology written by R. Pearcey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physiological plant ecology is primarily concerned with the function and performance of plants in their environment. Within this broad focus, attempts are made on one hand to understand the underlying physiological, biochemical and molecular attributes of plants with respect to performance under the constraints imposed by the environment. On the other hand physiological ecology is also concerned with a more synthetic view which attempts to under stand the distribution and success of plants measured in terms of the factors that promote long-term survival and reproduction in the environment. These concerns are not mutually exclusive but rather represent a continuum of research approaches. Osmond et al. (1980) have elegantly pointed this out in a space-time scale showing that the concerns of physiological ecology range from biochemical and organelle-scale events with time constants of a second or minutes to succession and evolutionary-scale events involving communities and ecosystems and thousands, if not millions, of years. The focus of physiological ecology is typically at the single leaf or root system level extending up to the whole plant. The time scale is on the order of minutes to a year. The activities of individual physiological ecologists extend in one direction or the other, but few if any are directly concerned with the whole space-time scale. In their work, however, they must be cognizant both of the underlying mechanisms as well as the consequences to ecological and evolutionary processes.
