Author: David A. Hennessy
Publisher:
ISBN:
Category : Agriculture and state
Languages : en
Pages : 40

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Book Description

Author: Salim Lamine
Publisher: Elsevier
ISBN: 0323914640
Category : Technology & Engineering
Languages : en
Pages : 555

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Book Description
Remote Sensing in Precision Agriculture: Transforming Scientific Advancement into Innovation compiles the latest applications of remote sensing in agriculture using spaceborne, airborne and drones' geospatial data. The book presents case studies, new algorithms and the latest methods surrounding crop sown area estimation, determining crop health status, assessment of vegetation dynamics, crop diseases identification, crop yield estimation, soil properties, drone image analysis for crop damage assessment, and other issues in precision agriculture. This book is ideal for those seeking to explore and implement remote sensing in an effective and efficient manner with its compendium of scientifically and technologically sound information. - Presents a well-integrated collection of chapters, with quality, consistency and continuity - Provides the latest RS techniques in Precision Agriculture that are addressed by leading experts - Includes detailed, yet geographically global case studies that can be easily understood, reproduced or implemented - Covers geospatial data, with codes available through shared links

Author: National Academy of Engineering
Publisher: National Academies Press
ISBN: 0309222753
Category : Technology & Engineering
Languages : en
Pages : 284

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Book Description
The Global Positioning System (GPS) has revolutionized the measurement of position, velocity, and time. It has rapidly evolved into a worldwide utility with more than a billion receiver sets currently in use that provide enormous benefits to humanity: improved safety of life, increased productivity, and wide-spread convenience. Global Navigation Satellite Systems summarizes the joint workshop on Global Navigation Satellite Systems held jointly by the U.S. National Academy of Engineering and the Chinese Academy of Engineering on May 24-25, 2011 at Hongqiao Guest Hotel in Shanghai, China. "We have one world, and only one set of global resources. It is important to work together on satellite navigation. Competing and cooperation is like Yin and Yang. They need to be balanced," stated Dr. Charles M. Vest, President of the National Academy of Engineering, in the workshop's opening remarks. Global Navigation Satellite Systems covers the objectives of the workshop, which explore issues of enhanced interoperability and interchangeability for all civil users aimed to consider collaborative efforts for countering the global threat of inadvertent or illegal interference to GNSS signals, promotes new applications for GNSS, emphasizing productivity, safety, and environmental protection. The workshop featured presentations chosen based on the following criteria: they must have relevant engineering/technical content or usefulness; be of mutual interest; offer the opportunity for enhancing GNSS availability, accuracy, integrity, and/or continuity; and offer the possibility of recommendations for further actions and discussions. Global Navigation Satellite Systems is an essential report for engineers, workshop attendees, policy makers, educators, and relevant government agencies.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
Precision agriculture (PA) is a suite of information technologies that can support a farm-based and site-specific crop management system in agricultural production. PA is not a single technology or farming system, but rather a cluster of different techniques. PA uses advanced information technologies to identify and to evaluate temporal and spatial variation in cropland. Rather than apply inputs of production, e.g., fertilizers, pesticides, seed, or water, uniformly across a field, a grower using PA techniques can apply inputs more efficiently based on the biophysical variability of different areas of a field. Proponents argue that PA can increase the yield potential of a farm while reducing the costs from inefficiently applying inputs. Further, by applying fertilizers and pesticides in more efficient amounts, proponents argue that farmers would reduce the environmental effects of over-application. Because PA is in the early stages of adoption, however, these benefits have been difficult to measure to date. Returns to investment in PA have also been mixed according to available research. Questions persist about the appropriate scale of analysis and measurement needed to validly assess the potential benefits of PA. Adopters of PA to date have disproportionately been larger corn, soybean, and wheat producers, which may be partly attributable to the early commercial availability of PA technology, such as yield monitors for these crops; but no hard evidence has emerged that PA technologies are size-biased or crop-specific. PA appears to offer the greatest future potential benefits where a variety of inputs are used and input costs are high, sub-field spatial and/or temporal variability is high, and adverse environmental effects, especially on water resources, must be reduced. Several bills have been introduced in recent Congresses to increase support for public research on PA development. Several public and land-grant universities have also initiated new programs in PA technology and development; additional research and development are supported by the Agricultural Research Service. In contrast to many previous U.S. technological innovations in agriculture, however, PA is currently being developed and promoted largely by private companies. Further diffusion of PA technologies could raise several public policy concerns that the Congress may wish to address. These include questions about the role of public research, education, and extension services; future effects on the organization of production; intellectual property issues associated with ownership and control of the agronomic databases created for individual farms; and other public or appropriate public-private roles to help growers gain access to and achieve some of PA's potential benefits.

Author: Margaret Oliver
Publisher: Routledge
ISBN: 1136468242
Category : Nature
Languages : en
Pages : 351

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Book Description
Precision agriculture (PA) involves the application of technologies and agronomic principles to manage spatial and temporal variation associated with all aspects of agricultural production in order to improve crop performance and environmental quality. The focus of this book is to introduce a non-specialist audience to the the role of PA in food security, environmental protection, and sustainable use of natural resources, as well as its economic benefits. The technologies covered include yield monitors and remote sensing, and the key agronomic principles addressed are the optimal delivery of fertilizers, water and pesticides to crops only when and where these are required. As a result, it is shown that both food production and resource efficiency can be maximized, without waste or damage to the environment, such as can occur from excessive fertilizer or pesticide applications. The authors of necessity describe some technicalities about PA, but the overall aim is to introduce readers who are unfamiliar with PA to this very broad subject and to demonstrate the potential impact of PA on the environment and economy. Chapter 3 of this book is freely available as a downloadable Open Access PDF at http://www.taylorfrancis.com under a Creative Commons Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND) 3.0 license.

Author: Congressional Research Service: The Libr
Publisher: BiblioGov
ISBN: 9781294255710
Category :
Languages : en
Pages : 30

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Book Description
Precision agriculture (PA) is a suite of information technologies that can support a farm-based and site-specific crop management system in agricultural production. PA is not a single technology or farming system, but rather a cluster of different techniques. PA uses advanced information technologies to identify and to evaluate temporal and spatial variation in cropland. Rather than apply inputs of production, e.g., fertilizers, pesticides, seed, or water, uniformly across a field, a grower using PA techniques can apply inputs more efficiently based on the biophysical variability of different areas of a field. Proponents argue that PA can increase the yield potential of a farm while reducing the costs from inefficiently applying inputs. Further, by applying fertilizers and pesticides in more efficient amounts, proponents argue that farmers would reduce the environmental effects of over-application. Because PA is in the early stages of adoption, however, these benefits have been difficult to measure to date. Returns to investment in PA have also been mixed according to available research. Questions persist about the appropriate scale of analysis and measurement needed to validly assess the potential benefits of PA. Adopters of PA to date have disproportionately been larger corn, soybean, and wheat producers, which may be ...

Author: John V. Lake
Publisher: John Wiley & Sons
ISBN: 0470515422
Category : Technology & Engineering
Languages : en
Pages : 259

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Book Description
This book investigates new agricultural systems such as organic and green manuring, as well as integrated pest management practices, and looks at how they can improve farm productivity against the enhancements for the environment. Much of the information presented focuses on microinvestigation of the soil, and on the effects of soil variability within fields on yields and nutrient flows.

Author: Latief Ahmad
Publisher: Springer
ISBN: 3030034488
Category : Technology & Engineering
Languages : en
Pages : 205

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Book Description
This book focuses on the recent advances in precision agriculture and satellite farming, detailing applications for sensing, data handling, modeling, and control. In addition, the book reviews its history - establishing the background on the various processes and applications – describes the current status, and offers insight into the future technology of satellite farming in India. Introducing processes and applications based on a global scale, the book reveals how precision agriculture can be used in large-scale agriculture, community agriculture, and diversified farming. It includes site-specific information from a variety of information sources for planning, planting, growing, and harvesting agricultural crops. It also presents a new concept based on the control system theory that can be used to formulate systematic methods for more effective precision crop production. Precision agriculture when properly integrated into the crop production process, can greatly improve overall production and sustainability.

Author: Søren Marcus Pedersen
Publisher: Springer
ISBN: 3319687158
Category : Technology & Engineering
Languages : en
Pages : 282

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Book Description
This book presents cases from different countries with a main focus on the perspectives of using precision farming in Europe. Divided into 12 chapters it addresses some of the most recent developments and aspects of precision farming. The intention of this book is to provide an overview of some of the most promising technologies with precision agriculture from an economic point of view. Each chapter has been put together so that it can be read individually should the reader wish to focus on one particular topic. Precision Farming as a farm technology benefits from large-scale advantages due to relatively high investment costs and is primarily adopted on farms with medium to large field areas.

Author: Nicholas C. Ward
Publisher:
ISBN: 9781321978445
Category :
Languages : en
Pages : 146

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Book Description
Water and nitrogen (N) are undoubtedly the two largest agricultural inputs globally. Coupled with advances in site-specific management technology their integration into production agriculture will allow for the most efficient use these crop input resources. Active canopy sensors offer the ability to measure biophysical plant traits rapidly and make assessments about plant status. Specifically, optical sensor measurements of light reflectance assess plant N status allowing for in-season and on-the-go N recommendations and applications; while infrared thermometers (IRT) measurement of canopy temperature can be used a tool for irrigation management. To evaluate how these technologies work among different plant stress environments a series of experiments were formulated. The first experiment compared reference strategies for normalizing reflectance data across multiple vegetation indices (VI). We found the virtual reference concept helped reduce variation of the calculated reference and placed sufficiency index values in a range that corresponded to plant N status. Additionally, VI varied in their ability to show significant responses to applied N fertilizer. In the second experiment, we sought to understand the influence of VI on how an in-season N application algorithm performs as well as the confounding effects of irrigation might have. We found N application rates would change based on algorithm and VI. Also, N rate can be affected by apparent water stress. In this case, reduced reflectance in the NIR spectrum reduced leaf area from leaf rolling. The final objective was to quantify the effect of N fertility on plant canopy temperature and determine if functions of canopy temperature could be useful for detecting apparent N stress. We concluded that plant canopy temperature can be affected by N stresses and that canopy temperature and canopy/air temperature difference provided equal sensitivity to plant stress. Therefore, these technologies will be vital to help conserve resources and maximize efficiency in production agriculture.