Determinants Of Microbial Community Structure And Substrate Utilization Potential In Soils Of Vegetable Cropping Systems

Download Determinants Of Microbial Community Structure And Substrate Utilization Potential In Soils Of Vegetable Cropping Systems full books in PDF, epub, and Kindle. Read online Determinants Of Microbial Community Structure And Substrate Utilization Potential In Soils Of Vegetable Cropping Systems ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

Determinants of Microbial Community Structure and Substrate Utilization Potential in Soils of Vegetable Cropping Systems

Author : Mary Edith Schutter
Publisher :
ISBN 13 :
Total Pages : 386 pages
Book Rating : 4.:/5 (45 download)

DOWNLOAD NOW!

Book Synopsis Determinants of Microbial Community Structure and Substrate Utilization Potential in Soils of Vegetable Cropping Systems by : Mary Edith Schutter

Download or read book Determinants of Microbial Community Structure and Substrate Utilization Potential in Soils of Vegetable Cropping Systems written by Mary Edith Schutter and published by . This book was released on 2000 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Oregon Long-Term Soil Quality Project was initiated to identify soil properties that respond rapidly to alternative management practices. Such practices included winter cover cropping, which was implemented at two experimental research stations and several grower fields throughout the Willamette Valley. The goal of this thesis was to identify the major impacts of cover cropping on soil microbial community structure, diversity, and substrate utilization potential. Microbial community structure was assessed by extracting fatty acids from soil and analyzing community fatty acid methyl ester (FAME) profiles. Two different methods for extracting fatty acids were tested; these were the ester linked method and the MIDI method developed by Microbial ID, Inc. (Newark, DE). Both methods discriminated among communities from different soils, but the types and relative amounts of fatty acids extracted differed by method. Microbial communities also were characterized by their potential to utilize a diverse range of carbon substrates using the Biolog assay. In a laboratory incubation study, the Biolog assay demonstrated that the types and overall diversity of substrates utilized were affected by the complexity of carbon substrate added to soil. In addition, Biolog diversity was significantly correlated with community FAME richness (r = 0.59). FAME and Biolog assays were applied to field soils of the Soil Quality Project. Changes occurred in microbial FAME structure and Biolog potential in response to winter cover cropping, but effects often were not observed until incorporation of cover crops to soil. In some soils containing cover crop residues, there were greater amounts of eukaryotic FAME markers compared to winter-fallow soils, suggesting greater fungal and protozoan populations in cover-cropped soil. Biolog diversity also was greater in cover-cropped soil compared to fallow soil, which may reflect the utilization of cover crop residues by soil microorganisms during the summer months. Community patterns across different sizes of soil aggregates also were assessed. Biolog diversity was heterogeneously distributed among aggregates, and winter cover cropping elevated FAME diversity across all but the largest (2.0-5.0 mm) aggregate size class. This thesis also identified season and soil type as strong determinants of microbial community structure.

Dissertation Abstracts International

Author :
Publisher :
ISBN 13 :
Total Pages : 782 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!

Book Synopsis Dissertation Abstracts International by :

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2000 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Standard Soil Methods for Long-Term Ecological Research

Author : G. Philip Robertson
Publisher : Oxford University Press
ISBN 13 : 0198028261
Total Pages : 481 pages
Book Rating : 4.1/5 (98 download)

DOWNLOAD NOW!

Book Synopsis Standard Soil Methods for Long-Term Ecological Research by : G. Philip Robertson

Download or read book Standard Soil Methods for Long-Term Ecological Research written by G. Philip Robertson and published by Oxford University Press. This book was released on 1999-10-28 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Standardized methods and measurements are crucial for ecological research, particularly in long-term ecological studies where the projects are by nature collaborative and where it can be difficult to distinguish signs of environmental change from the effects of differing methodologies. This second volume in the Long-Term Ecological Research (LTER) Network Series addresses these issues directly by providing a comprehensive standardized set of protocols for measuring soil properties. The goal of the volume is to facilitate cross-site synthesis and evaluation of ecosystem processes. Chapters cover methods for studying physical and chemical properties of soils, soil biological properties, and soil organisms, and they include work from many leaders in the field. The book is the first broadly based compendium of standardized soil measurement methods and will be an invaluable resource for ecologists, agronomists, and soil scientists.

Microbes in Land Use Change Management

Author : Jay Shankar Singh
Publisher : Elsevier
ISBN 13 : 0323858945
Total Pages : 611 pages
Book Rating : 4.3/5 (238 download)

DOWNLOAD NOW!

Book Synopsis Microbes in Land Use Change Management by : Jay Shankar Singh

Download or read book Microbes in Land Use Change Management written by Jay Shankar Singh and published by Elsevier. This book was released on 2021-08-20 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbes in Land Use Change Management details the various roles of microbial resources in management of land uses and how the microbes can be used for the source of income due to their cultivation for the purpose of biomass and bioenergy production. Using various techniques, the disturbed and marginal lands may also be restored eco-friendly in present era to fulfil the feeding needs of mankind around the globe. Microbes in Land Use Change Management provides standard and up to date information towards the land use change management using various microbial technologies to enhance the productivity of agriculture. Needless to say that Microbes in Land Use Change Management also considers the areas including generation of alternative energy sources, restoration of degraded and marginal lands, mitigation of global warming gases and next generation -omics technique etc. Land use change affects environment conditions and soil microbial community. Microbial population and its species diversity have influence in maintaining ecosystem balance. The study of changes of microbial population provides an idea about the variation occurring in a specific area and possibilities of restoration. Meant for a multidisciplinary audience Microbes in Land Use Change Management shows the need of next-generation omics technologies to explore microbial diversity. Describes the role of microbes in generation of alternative source of energy Gives recent information related to various microbial technology and their diversified applications Provides thorough insight in the problems related to landscape dynamics, restoration of soil, reclamation of lands mitigation of global warming gases etc. eco-friendly way using versatility of microbes Includes microbial tools and technology in reclamation of degraded, disturbed and marginal lands, mitigation of global warming gases

The Response of Soil Microbial Communities to Vegetable Cropping Systems Analyzed for RNA- and DNA-based Sampling

Author : Lorena Gomez-Montano
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (18 download)

DOWNLOAD NOW!

Book Synopsis The Response of Soil Microbial Communities to Vegetable Cropping Systems Analyzed for RNA- and DNA-based Sampling by : Lorena Gomez-Montano

Download or read book The Response of Soil Microbial Communities to Vegetable Cropping Systems Analyzed for RNA- and DNA-based Sampling written by Lorena Gomez-Montano and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil microbial communities play fundamental and complex roles in the productivity of agriculture. However, we still have a limited understanding of the response of microbial communities to different farming systems, such as organic and conventional fertility management regimens. We applied high-throughput sequencing to develop a better understanding of how soil microbial communities (bacteria and fungi) in vegetable production respond to organic or conventional soil fertility management. Specifically, my three studies examined the following questions: 1. How do soil microbial communities from cDNA and DNA samples compare in organic and conventional fertility treatments? 2. How do soil microbial communities in a tomato cropping season respond to long-term organic vs. conventional soil fertility treatments? 3. How do soil bacterial and fungal communities respond to high tunnels, plastic mulch and organic amendments across a tomato cropping season? The first two questions were addressed at the Kansas State University Horticulture and Extension Center in Olathe, KS, using organic and conventional field plots with three levels of fertilizer. We sampled the plots during the development of a tomato crop. The third question was addressed at a commercial farm in Lawrence, KS, during its transition to organic vegetable production, during a tomato crop. The Lawrence experiment included as treatments field plots versus high tunnels, and three organic nutrient amendments. We used 454-pyrosequencing of bacterial and fungal ribosomal markers to compare total resident (DNA) and active microbial communities (cDNA, which is DNA synthesized from a single stranded RNA template) for our first question. We used Illumina MiSeq metabarcoding of bacterial and fungal ribosomal markers for our second and third questions. In all three studies we evaluated bacterial and fungal community responses using Simpson ́s diversity index, Simpson ́s evenness and richness for each experiment. For the first question, when we compared DNA and cDNA, bacterial diversity was higher in cDNA samples from organic compared to conventional management. In addition, fungal diversity from cDNA samples was higher than from DNA samples. In contrast, in the second question, bacterial and fungal diversity indices did not differ in the tomato crop under organic and conventional management systems. For our third question, high tunnels did not affect bacterial or fungal diversity. Use of plastic mulch for a tomato crop in open field plots did not affect bacterial richness, but decreased fungal richness compared to open field plots without plastic mulch. High-throughput sequencing provides a new perspective on the structure and dynamics of these communities. Information from this approach will ultimately improve our ability to manage soil for sustainable productivity by promoting beneficial microorganisms and suppressing pathogenic ones.

American Doctoral Dissertations

Author :
Publisher :
ISBN 13 :
Total Pages : 848 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!

Book Synopsis American Doctoral Dissertations by :

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1999 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Community Structures and Substrate Utilization of Bacteria in Soils from Organic and Conventional Farming Systems of the DOK Long-term Field Experiment

Download Community Structures and Substrate Utilization of Bacteria in Soils from Organic and Conventional Farming Systems of the DOK Long-term Field Experiment PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (911 download)

DOWNLOAD NOW!

Book Synopsis Community Structures and Substrate Utilization of Bacteria in Soils from Organic and Conventional Farming Systems of the DOK Long-term Field Experiment by :

Download or read book Community Structures and Substrate Utilization of Bacteria in Soils from Organic and Conventional Farming Systems of the DOK Long-term Field Experiment written by and published by . This book was released on 2006 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sociology, Organic Farming, Climate Change and Soil Science

Author : Eric Lichtfouse
Publisher : Springer Science & Business Media
ISBN 13 : 9048133335
Total Pages : 478 pages
Book Rating : 4.0/5 (481 download)

DOWNLOAD NOW!

Book Synopsis Sociology, Organic Farming, Climate Change and Soil Science by : Eric Lichtfouse

Download or read book Sociology, Organic Farming, Climate Change and Soil Science written by Eric Lichtfouse and published by Springer Science & Business Media. This book was released on 2009-12-01 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable agriculture is a rapidly growing field aiming at producing food and energy in a sustainable way for humans and their children. Sustainable agriculture is a discipline that addresses current issues such as climate change, increasing food and fuel prices, poor-nation starvation, rich-nation obesity, water pollution, soil erosion, fertility loss, pest control, and biodiversity depletion. Novel, environmentally-friendly solutions are proposed based on integrated knowledge from sciences as diverse as agronomy, soil science, molecular biology, chemistry, toxicology, ecology, economy, and social sciences. Indeed, sustainable agriculture decipher mechanisms of processes that occur from the molecular level to the farming system to the global level at time scales ranging from seconds to centuries. For that, scientists use the system approach that involves studying components and interactions of a whole system to address scientific, economic and social issues. In that respect, sustainable agriculture is not a classical, narrow science. Instead of solving problems using the classical painkiller approach that treats only negative impacts, sustainable agriculture treats problem sources. Because most actual society issues are now intertwined, global, and fast-developing, sustainable agriculture will bring solutions to build a safer world. This book series gathers review articles that analyze current agricultural issues and knowledge, then propose alternative solutions. It will therefore help all scientists, decision-makers, professors, farmers and politicians who wish to build a safe agriculture, energy and food system for future generations.

Microorganisms as Indicators of Soil Health

Author : Mette Neiendam Nielsen
Publisher :
ISBN 13 : 9788777726583
Total Pages : 82 pages
Book Rating : 4.7/5 (265 download)

DOWNLOAD NOW!

Book Synopsis Microorganisms as Indicators of Soil Health by : Mette Neiendam Nielsen

Download or read book Microorganisms as Indicators of Soil Health written by Mette Neiendam Nielsen and published by . This book was released on 2002 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modern Soil Microbiology, Second Edition

Author : Jan Dirk van Elsas
Publisher : CRC Press
ISBN 13 : 9780824727499
Total Pages : 704 pages
Book Rating : 4.7/5 (274 download)

DOWNLOAD NOW!

Book Synopsis Modern Soil Microbiology, Second Edition by : Jan Dirk van Elsas

Download or read book Modern Soil Microbiology, Second Edition written by Jan Dirk van Elsas and published by CRC Press. This book was released on 2006-12-21 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the ten years since the publication of Modern Soil Microbiology, the study of soil microbiology has significantly changed, both in the understanding of the diversity and function of soil microbial communities and in research methods. Ideal for students in a variety of disciplines, this second edition provides a cutting-edge examination of a fascinating discipline that encompasses ecology, physiology, genetics, molecular biology, and biotechnology, and makes use of biochemical and biophysical approaches. The chapters cover topics ranging from the fundamental to the applied and describe the use of advanced methods that have provided a great thrust to the discipline of soil microbiology. Using the latest molecular analyses, they integrate principles of soil microbiology with novel insights into the physiology of soil microorganisms. The authors discuss the soil and rhizosphere as habitats for microorganisms, then go on to describe the different microbial groups, their adaptive responses, and their respective processes in interactive and functional terms. The book highlights a range of applied aspects of soil microbiology, including the nature of disease-suppressive soils, the use of biological control agents, biopesticides and bioremediation agents, and the need for correct statistics and experimentation in the analyses of the data obtained from soil systems.

Soil Microorganisms Under Ecological Planting

Author : Ming Liu
Publisher : Frontiers Media SA
ISBN 13 : 2832532993
Total Pages : 175 pages
Book Rating : 4.8/5 (325 download)

DOWNLOAD NOW!

Book Synopsis Soil Microorganisms Under Ecological Planting by : Ming Liu

Download or read book Soil Microorganisms Under Ecological Planting written by Ming Liu and published by Frontiers Media SA. This book was released on 2023-09-06 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Soil Biological Fertility

Author : Lynette K. Abbott
Publisher : Springer Science & Business Media
ISBN 13 : 1402066198
Total Pages : 267 pages
Book Rating : 4.4/5 (2 download)

DOWNLOAD NOW!

Book Synopsis Soil Biological Fertility by : Lynette K. Abbott

Download or read book Soil Biological Fertility written by Lynette K. Abbott and published by Springer Science & Business Media. This book was released on 2007-10-23 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is becoming more relevant to explore soil biological processes in terms of their contribution to soil fertility. This book presents a comprehensive scientific overview of the components and processes that underpin the biological characteristics of soil fertility. It highlights the enormous diversity of life in soil and the resulting effects that management of land can have on the contribution of this diverse community to soil fertility in an agricultural context.

Handbook of Plant Nutrition

Author : Allen V. Barker
Publisher : CRC Press
ISBN 13 : 1420014870
Total Pages : 662 pages
Book Rating : 4.4/5 (2 download)

DOWNLOAD NOW!

Book Synopsis Handbook of Plant Nutrition by : Allen V. Barker

Download or read book Handbook of Plant Nutrition written by Allen V. Barker and published by CRC Press. This book was released on 2016-04-19 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.

Handbook of Soil Sciences

Author : Pan Ming Huang
Publisher : CRC Press
ISBN 13 : 1439803072
Total Pages : 833 pages
Book Rating : 4.4/5 (398 download)

DOWNLOAD NOW!

Book Synopsis Handbook of Soil Sciences by : Pan Ming Huang

Download or read book Handbook of Soil Sciences written by Pan Ming Huang and published by CRC Press. This book was released on 2011-11-17 with total page 833 pages. Available in PDF, EPUB and Kindle. Book excerpt: An evolving, living organic/inorganic covering, soil is in dynamic equilibrium with the atmosphere above, the biosphere within, and the geology below. It acts as an anchor for roots, a purveyor of water and nutrients, a residence for a vast community of microorganisms and animals, a sanitizer of the environment, and a source of raw materials for construction and manufacturing. To develop lasting solutions to the challenges of balanced use and stewardship of the Earth, we require a fundamental understanding of soil—from its elastic, porous three-phase system to its components, processes, and reactions. Handbook of Soil Sciences: Resource Management and Environmental Impacts, Second Edition is the second of two volumes that form a comprehensive reference on the discipline of soil science. Completely revised and updated to reflect the current state of knowledge, this volume covers interfacial interactions between the physical, chemical, and biological regimes within the soil; the factors that control the availability of plant nutrients and microelements; interdisciplinary aspects of soil science, including salinity, sodicity, and soil erosion; and soil databases for assessing worldwide soil resources. Critical elements addressed in each section include: Descriptions of concepts and theories Definitions, approaches, methodologies, and procedures Data in tabular and figure format Extensive references This cohesive handbook provides a thorough understanding of soil science principles and practices based on a rigorous, complete, and up-to-date treatment of the subject matter compiled by leading scientists. It is a resource rich in data, offering professional soil scientists, agronomists, engineers, ecologists, biologists, naturalists, and students their first point of entry into a particular aspect of the soil sciences.

Cornell Soil Health Assessment Training Manual

Author : Beth K. Gugino
Publisher :
ISBN 13 : 9780967650746
Total Pages : 52 pages
Book Rating : 4.6/5 (57 download)

DOWNLOAD NOW!

Book Synopsis Cornell Soil Health Assessment Training Manual by : Beth K. Gugino

Download or read book Cornell Soil Health Assessment Training Manual written by Beth K. Gugino and published by . This book was released on 2007 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Phosphorus in Action

Author : Else K. Bünemann
Publisher : Springer Science & Business Media
ISBN 13 : 3642152716
Total Pages : 485 pages
Book Rating : 4.6/5 (421 download)

DOWNLOAD NOW!

Book Synopsis Phosphorus in Action by : Else K. Bünemann

Download or read book Phosphorus in Action written by Else K. Bünemann and published by Springer Science & Business Media. This book was released on 2010-11-08 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus (P) is a finite resource which is essential for life. It is a limiting nutrient in many ecosystems but also a pollutant which can affect biodiversity in terrestrial ecosystems and change the ecology of water bodies. This book collects the latest information on biological processes in soil P cycling, which to date have remained much less understood than physico-chemical processes. The methods section presents spectroscopic techniques and the characterization of microbial P forms, as well as the use of tracers, molecular approaches and modeling of soil-plant systems. The section on processes deals with mycorrhizal symbioses, microbial P solubilization, soil macrofauna, phosphatase enzymes and rhizosphere processes. On the system level, P cycling is examined for grasslands, arctic and alpine soils, forest plantations, tropical forests, and dryland regions. Further, P management with respect to animal production and cropping, and the interactions between global change and P cycling, are treated.

Microbial Strategies for Crop Improvement

Author : Mohammad Saghir Khan
Publisher : Springer Science & Business Media
ISBN 13 : 364201979X
Total Pages : 371 pages
Book Rating : 4.6/5 (42 download)

DOWNLOAD NOW!

Book Synopsis Microbial Strategies for Crop Improvement by : Mohammad Saghir Khan

Download or read book Microbial Strategies for Crop Improvement written by Mohammad Saghir Khan and published by Springer Science & Business Media. This book was released on 2009-08-25 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an ever-increasing human population, the demand placed upon the agriculture sector to supply more food is one of the greatest challenges for the agrarian community. In order to meet this challenge, environmentally unfriendly agroch- icals have played a key role in the green revolution and are even today commonly recommended to circumvent nutrient de?ciencies of the soils. The use of ag- chemicals is, though, a major factor for improvement of plant production; it causes a profound deteriorating effect on soil health (soil fertility) and in turn negatively affects the productivity and sustainability of crops. Concern over disturbance to the microbial diversity and consequently soil fertility (as these microbes are involved in biogeochemical processes), as well as economic constraints, have prompted fun- mental and applied research to look for new agro-biotechnologies that can ensure competitive yields by providing suf?ciently not only essential nutrients to the plants but also help to protect the health of soils by mitigating the toxic effects of certain pollutants. In this regard, the role of naturally abundant yet functionally fully unexplored microorganisms such as biofertilizers assume a special signi?cance in the context of supplementing plant nutrients, cost and environmental impact under both conventional practices and derelict environments. Therefore, current devel- ments in sustainability involve a rational exploitation of soil microbial communities and the use of inexpensive, though less bio-available, sources of plant nutrients, which may be made available to plants by microbially-mediated processes.