De Aller-Bedste Bøger - over 12 mio. danske og engelske bøger
Levering: 1 - 2 hverdage

Bøger udgivet af American Society of Agronomy

Filter
Filter
Sorter efterSorter Populære
  • af Fang
    2.438,95 kr.

    "Book and Mutimedia Publsihing Committee, April Ulery, Chair, [and 21 others]."

  • - The Food Legume of the 21st Century
    af SINGH
    533,95 kr.

    "Co-sponsored by the International Institute of Tropical Agriculture."

  • - Linking People and Nature
    af David N. (Chair of the School of Economics at Georgia Institute of Technology) Laband
    1.348,95 kr.

    What is the urban-rural interface? Is it a visual phenomenon, a place where country gives way to neighborhoods and shopping areas in a startling way? Is it a simple factor of population density? There is nothing simple about the urban-rural interface--editors David Laband, Graeme Lockaby, and Wayne Zipperer present the broad spectrum of interdisciplinary complexities at play. Organized into three sections on changing ecosystems, changing human dimensions, and the dynamic integration of human and natural systems, this book is a must read for anyone who works in the real world, where natural and human systems are joined. This is the new sustainability science, an emerging discipline that integrates social and economic values with the physical, chemical, and ecological functions of ecosystems. The goal is optimal management, since our human impact is often significant and far-reaching in both space and time.

  • - Biology, Use, and Management
    af John C. (Professor in the plant sciences department of the University of Tennessee-Knoxville) Stier
    2.318,95 kr.

  • af D. Kent Shannon
    813,95 kr.

    With the growing popularity and availability of precision equipment, farmers and producers have access to more data than ever before. With proper implementation, precision agriculture management can improve profitability and sustainability of production. Precision Agriculture Basics is geared at students, crop consultants, farmers, extension workers, and practitioners that are interested in practical applications of site-specific agricultural management. Using a multidisciplinary approach, readers are taught to make data-driven on-farm decisions using the most current knowledge and tools in crop science, agricultural engineering, and geostatistics. Precision Agriculture Basics also features a stunning video glossary including interviews with agronomists on the job and in the field.--

  • af Kathleen M. (University of Illinois) Yeater & Barry (USDA-ARS Sugarcane Field Station in Canal Point Glaz
    2.018,95 kr.

    "Book and Multimedia Publishing Committee"--Title page.

  • - Goespatial Techniques for Agricultural and Natural Resources Conservation
    af Jorge A. (Louisiana State University) Delgado, Gretchen F. (University of Illinois) Sassenrath & Tom (Purdue University) Mueller
    1.108,95 kr.

  • af A Chatterjee
    348,95 kr.

    In Soil Fertility Management in Agroecosystems, Editors Amitava Chatterjee and David Clay provide a thoughtful survey of important concepts in soil fertility management. For the requirements of our future workforce, it is imperative that we evolve our understanding of soil fertility. Agronomists and soil scientists are increasingly challenged by extreme climatic conditions. Farmers are experimenting with integrating cover crops into rotations and reducing the use of chemical fertilizers. In other words, there is no such a thing as a simple fertilizer recommendation in today's agriculture. Topics covered include crop-specific nutrient management, program assessment, crop models for decision making, optimization of fertilizer use, cover crops, reducing nitrous oxide emissions, natural abundance techniques, tile-drained conditions, and soil biological fertility.

  • af Jerry L. Hatfield & David Fleisher
    1.053,95 kr.

    Understanding how crops will respond to climate change is essential to agriculture's ability to adapt and have the greatest probability of continuing to meet societal needs. Crop model intercomparison and improvement are required to advance understanding of the impact of future climate change on crop growth and yield. Initial efforts undertaken in the Agriculture Model Intercomparison and Improvement Project (AgMIP) led to several observations where crop models were not adequately simulating growth and development. Enhanced efforts are required to quantify the carbon dioxide temperature water interactions in plant growth and yield. This volume in the Advances in Agricultural Systems Modeling series presents progress in that area, with experimental observations across crops, simulation modeling outcomes, and future challenges in improving crop simulation models.--

  • af Ahuja
    1.743,95 kr.

    Completely devoted to applicati on of models to opti mize the use of limited water and nutrients in various climates, this collecti on will inspire confi dence in the capacity of modeling to tackle the biggest threats to secure agriculture. To obtain the most producti on from available water while maintaining natural resources, we need whole system-based quanti tati ve knowledge and tools to help select appropriate crops and manage water and associated inputs on a site-specifi c basis under changing climate. Site-specifi c experimental results are available for limited locati ons, limited periods of ti me, and limited management opti ons. Well-tested process models of cropping systems can extend fi eld research results to long-term weather conditi ons, as well as other climates and soils, allowing us to explore new management opti ons. The case studies in this volume are promising examples of these kinds of soluti ons.

  • - Safeguarding Animal Feed with Calcium Smectite
    af Joe B. (Texas A&M University) Dixon & Ana L. (Texas A&M University) Barrientos Velazquez
    348,95 kr.

    Aflatoxin contamination represents a serious threat to a healthy food supply. Resulting from mold on corn, peanuts, and other grains and grain products, aflatoxins are extremely toxic. Understanding the nature of fungi infection and the factors that favor aflatoxin formation is important to grain producers, dealers, and other professionals who control grain from the field to the site of consumption to prevent serious loss of large quantities of grain or grain products. Producers of poultry, cattle, sheep, pigs, and even pet food need to be aware of the threat of aflatoxin. Participants in the grain industry who grow, store, or process corn and other grains subject to potential infection by aflatoxin should be aware of the risks of fungal infection and aflatoxin contamination, and proper management strategies. The authors focus on the binding of aflatoxin in animal feeds by employing calcium smectite. Readers will be especially glad to know that aflatoxin can often be controlled with a natural mineral material to bind aflatoxin in animal feeds at a modest cost.--

  • af Timlin
    933,95 kr.

    Research progress in soil-root growth interactions has been slow due to the relative inaccessibility of roots in their natural environment and because root research cuts across the boundaries of soil science, ecology, crop science, and plant physiology, among others. Enhancing Understanding and Quantification of Soil-Root Growth Interactions takes on this challenge to solve society's growing problems in the conservation of quality water and soil resources. Researchers must come together and leverage our understanding of the rhizosphere to maximize efficient, sustainable use of limited water and soil nutrient resources. This is a serious calling--from addressing the critical needs in nations who cannot afford costly fertilizers, to the global challenge of enhancing soil carbon storage to reduce climate change effects of elevated carbon dioxide. This book brings together scientists from different disciplines, worldwide, together to encourage synthesis of transdisciplinary knowledge and further research and developments in the area of root-soil interactions.

  • - It's What You Need on the Research Path
    af RD Taskey
    353,95 kr.

    The new graduate student must select a graduate committee, plan course work, find an original research topic, and design a research plan that ultimately leads to a defensible thesis or series of publishable research articles. Whether a graduate student plans a research career or not, he or she typically must complete an original, independent, analytical study, even though few beginning students know how or where to begin. A little help would be good, right? This process-oriented manual holds the fundamentals students in the sciences need to trek the graduate school path--it is their "backpack." Open it and see what it can do for you.

  • af Edward E. (Professor and Interim Director of the Agricultural Statistics Laboratory at the University of Arkansas) Gbur, Walter W. (Professor of Statistics at the University of Nebraska Stroup, Kevin S. (Department of Experimental Statistics at Louisiana State University) McCarter, mfl.
    833,95 kr.

    Generalized Linear Mixed Models in the Agricultural and Natural Resources Sciences provides readers with an understanding and appreciation for the design and analysis of mixed models for non-normally distributed data. It is the only publication of its kind directed specifically toward the agricultural and natural resources sciences audience. Readers will especially benefit from the numerous worked examples based on actual experimental data and the discussion of pitfalls associated with incorrect analyses.

  • af J. (Assistant Professor of Urban Water and Nutrient Management within the Soil and Crop Science department at Texas A&M University) Aitkenhead-Peterson
    1.128,95 kr.

    If more than half of the Earth's people live in cities and the amount of paved surfaces in the United States is equivalent to the area of Ohio, shouldn't our sciences thrive in the city? Urban Ecosystem Ecology takes on the important task of reconciling environmental sciences with the world's growing urbanization. From wildlife to water, from urban agriculture to low-impact development, we need a better understanding of the urban ecosystem.

  • - Quietness and Strength for a New American Agriculture
    af Wedin
    943,95 kr.

    Grass: the 1948 yearbook of agriculture: Washington, D.C., U.S. Dept of Agriculture, included on CD-ROM.

  • af Peter (University of Missouri) Scharf
    333,95 kr.

    Among crop nutrients, nitrogen has the most complex chemistry and behavior in soil, gives the largest yield responses, and is the most difficult to manage. Managing Nitrogen in Crop Production condenses the latest research and thinking from leading experts in nitrogen. The result will increase your understanding of nitrogen and your odds of managing it successfully.

  • af Wendroth
    873,95 kr.

    In the 8th book of Dr. Ahuja's innovative "Advances in Agricultural Systems Modeling" series, authors give a look into the future of climatesmart agricultural systems, emphasizing the integration of soil, weather, vegetation and management information to predict relevant agro-ecosystem processes. Expansion of data availability, improvement of sensors, and computational power have opened opportunities in modeling and exploration of management impact. Authors give a background on model development and explain soil, plant, and climate processes and their interactions that encompass the wide range of applications of simulation models to address challenges in managing our resources and complex agricultural systems.