A Regional Investigation of In-season Nitrogen Requirement for Maize Using Model and Sensor-based Recommendation Approaches

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ISBN 13 :
Total Pages : 309 pages
Book Rating : 4.:/5 (978 download)

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Book Synopsis A Regional Investigation of In-season Nitrogen Requirement for Maize Using Model and Sensor-based Recommendation Approaches by : Laura Joy Stevens

Download or read book A Regional Investigation of In-season Nitrogen Requirement for Maize Using Model and Sensor-based Recommendation Approaches written by Laura Joy Stevens and published by . This book was released on 2014 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: N management for corn can be improved by applying a portion of the total N during the growing season, allowing for adjustments responsive to actual field conditions. This study was conducted to evaluate two approaches for determining in-season N rates: Maize-N model and active crop canopy sensor. Various sensor algorithms designed for making in-season N recommendations from crop canopy sensor data were evaluated. The effects of corn hybrid and planting population on recommendations with these two approaches were considered. In a 2-yr study, a total of twelve sites were evaluated over a 3-state region, including sites in Missouri, Nebraska, and North Dakota. In-season N recommendations were generally lower when using the sensor-based approach with Holland and Schepers (2012) algorithm than the model-based approach. This resulted in observed trends of higher partial factor productivity of N and agronomic efficiency for the sensor-based treatments. At specific sites, conditions leading to high levels of mineralized N becoming available to the crop during the growing season increased environmental and economic benefit of the sensor-based approach. The optimum N rate was estimated using a linear-plateau model. Compared to the sensor-based approach with the Holland and Schepers algorithm, the model-based approach more closely estimated the optimum N rate and erred by over-recommending N. Profit loss from the sensor with Holland and Schepers algorithm was greater when considering all sites collectively due to the greater cost of lost yield when N was under-applied, versus the lower cost of excess N when N was over-applied.

Integrating Management Zones and Canopy Sensing to Improve Nitrogen Recommendation Algorithms

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ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (15 download)

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Book Synopsis Integrating Management Zones and Canopy Sensing to Improve Nitrogen Recommendation Algorithms by : Joel D. Crowther

Download or read book Integrating Management Zones and Canopy Sensing to Improve Nitrogen Recommendation Algorithms written by Joel D. Crowther and published by . This book was released on 2018 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertilizer nitrogen use efficiency (NUE) in maize (Zea mays L.) production is historically inefficient, presenting significant environmental and economic challenges. Low NUE can be attributed to poor synchrony between soil N supply and crop demand, applying uniform rates of N fertilizer to spatially variable landscapes, and failure to account for temporal variability in crop response to N. Innovative N management strategies, including crop canopy sensing and management zones (MZ), are tools that have proven useful in increasing NUE. Several researchers have proposed that the integration of these two approaches may result in further improvements in NUE and in profitability by synthesizing both crop- and soil-based information for more robust N management. The objectives of this research were to identify soil and topographic variables that could be used to delineate MZ that appropriately characterize areas with differential crop response to N fertilizer and then to test a sensor-based N application algorithm and evaluate the potential of an integrated MZ- and sensor-based approach compared to uniform N management and to sensor-based N management alone. Management zones delineated with a field-specific approach were able to appropriately characterize the spatial variability in in-season crop response to N in all eight fields and in yield response to N in three of six fields. Sensor-based application resulted in significantly increased NUE compared to uniform N management in six of eight fields, and marginal net return was significantly increased in four of eight fields. Delineated MZ appropriately classified areas of differing NUE in six of eight fields. Results from these studies indicate that integrating field-specific MZ and sensor-based N application has potential to increase NUE and profitability compared to sensor-based or MZ-based N management approaches alone. Additional research is needed to explore how to best incorporate static soil information into a sensor-based algorithm that can be generalized for a variety of soil, climatic, and managerial factors.

Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin

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ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin by :

Download or read book Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin written by and published by . This book was released on 1999 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Regional Analysis of Maize-based Land Use Systems for Early Warning Applications

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ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Regional Analysis of Maize-based Land Use Systems for Early Warning Applications by : Denis Rugege

Download or read book Regional Analysis of Maize-based Land Use Systems for Early Warning Applications written by Denis Rugege and published by . This book was released on 2002 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Repeated measurements during the crop cycle allow monitoring of the sufficiency of actual management practices. Introducing estimated or forecast weather data in crop growth calculations for the remainder of the crop cycle permits to make repeated estimates of anticipated crop production and to timely signal a need for remedial action.

Handbook of Soil Sciences (Two Volume Set)

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Publisher : CRC Press
ISBN 13 : 1439803048
Total Pages : 2272 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Handbook of Soil Sciences (Two Volume Set) by : Pan Ming Huang

Download or read book Handbook of Soil Sciences (Two Volume Set) written by Pan Ming Huang and published by CRC Press. This book was released on 2018-10-03 with total page 2272 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 co

Precision Agriculture for Sustainability and Environmental Protection

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Publisher : Routledge
ISBN 13 : 1136468242
Total Pages : 351 pages
Book Rating : 4.1/5 (364 download)

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Book Synopsis Precision Agriculture for Sustainability and Environmental Protection by : Margaret Oliver

Download or read book Precision Agriculture for Sustainability and Environmental Protection written by Margaret Oliver and published by Routledge. This book was released on 2013-11-20 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Remote Sensing in Precision Agriculture

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Publisher : Elsevier
ISBN 13 : 0323914640
Total Pages : 555 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Remote Sensing in Precision Agriculture by : Salim Lamine

Download or read book Remote Sensing in Precision Agriculture written by Salim Lamine and published by Elsevier. This book was released on 2023-10-20 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Nitrogen Fertilizer Recommendations for Maize Produced in the Tropics

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ISBN 13 :
Total Pages : 608 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Nitrogen Fertilizer Recommendations for Maize Produced in the Tropics by : Deanna Lynn Osmond

Download or read book Nitrogen Fertilizer Recommendations for Maize Produced in the Tropics written by Deanna Lynn Osmond and published by . This book was released on 1991 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of Soil Sciences

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

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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.

Precision agriculture '13

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Publisher : Springer
ISBN 13 : 9086867782
Total Pages : 770 pages
Book Rating : 4.0/5 (868 download)

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Book Synopsis Precision agriculture '13 by : John V. Stafford

Download or read book Precision agriculture '13 written by John V. Stafford and published by Springer. This book was released on 2013-09-04 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt: Precision agriculture is now 'main stream' in agriculture and is playing a key role as the industry comes to terms with the environment, market forces, quality requirements, traceability, vehicle guidance and crop management. Research continues to be necessary and needs to be reported and disseminated to a wide audience. This book contains peer reviewed papers presented at the 9th European Conference on Precision Agriculture, held in Lleida, Spain. The papers reflect the wide range of disciplines that impinge on precision agriculture: technology, crop science, soil science, agronomy, information technology, decision support, remote sensing and others. The broad range of research topics reported will be a valuable resource for researchers, advisors, teachers and professionals in agriculture long after the conference has finished.

Nitrogen in Agricultural Systems

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Publisher : ASA-CSSA-SSSA
ISBN 13 : 9780891181644
Total Pages : 994 pages
Book Rating : 4.1/5 (816 download)

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Book Synopsis Nitrogen in Agricultural Systems by : James Stuart Schepers

Download or read book Nitrogen in Agricultural Systems written by James Stuart Schepers and published by ASA-CSSA-SSSA. This book was released on 2008 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: Review of the principles and management implications related to nitrogen in the soil-plant-water system.

Geomorphometry

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Publisher : Newnes
ISBN 13 : 0080921884
Total Pages : 796 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Geomorphometry by : Tomislav Hengl

Download or read book Geomorphometry written by Tomislav Hengl and published by Newnes. This book was released on 2008-09-25 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geomorphometry is the science of quantitative land-surface analysis. It draws upon mathematical, statistical, and image-processing techniques to quantify the shape of earth's topography at various spatial scales. The focus of geomorphometry is the calculation of surface-form measures (land-surface parameters) and features (objects), which may be used to improve the mapping and modelling of landforms to assist in the evaluation of soils, vegetation, land use, natural hazards, and other information. This book provides a practical guide to preparing Digital Elevation Models (DEM) for analysis and extracting land-surface parameters and objects from DEMs through a variety of software. It further offers detailed instructions on applying parameters and objects in soil, agricultural, environmental and earth sciences. This is a manual of state-of-the-art methods to serve the various researchers who use geomorphometry. Soil scientists will use this book to further learn the methods for classifying and measuring the chemical, biological, and fertility properties of soils and gain a further understaing of the role of soil as a natural resource. Geologists will find value in the instruction this book provides for measuring the physical features of the soil such as elevation, porosity, and structure which geologists use to predict natural disasters such as earthquakes, volcanoes, and flooding. * Technical details on a variety of software packages allow researchers to solve real-life mapping issues * Provides soil and agronomy researchers best practice techniques for soil data analysis to assist in enhanced land-use and planning * Offers geologists essential tactics for better environmental management by providing a comprehensive analysis of the physical features of soil * Companion website includes access to the latest technological advancements previously unpublished in any other comprehensive source: geomorphometry software, DEM data sources, and applications

Studies on Nitrogen Requirement and Planting Geometry of Maize Based Grain Legume Intercropping Systems

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (659 download)

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Book Synopsis Studies on Nitrogen Requirement and Planting Geometry of Maize Based Grain Legume Intercropping Systems by :

Download or read book Studies on Nitrogen Requirement and Planting Geometry of Maize Based Grain Legume Intercropping Systems written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sustainable Agriculture Systems and Technologies

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Publisher : John Wiley & Sons
ISBN 13 : 1119808537
Total Pages : 416 pages
Book Rating : 4.1/5 (198 download)

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Book Synopsis Sustainable Agriculture Systems and Technologies by : Pavan Kumar

Download or read book Sustainable Agriculture Systems and Technologies written by Pavan Kumar and published by John Wiley & Sons. This book was released on 2022-03-14 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Agriculture Systems and Technologies A robust treatment of traditional and new techniques in sustainable agriculture In Sustainable Agriculture Systems and Technologies, a team of distinguished researchers delivers an up-to-date and comprehensive exploration of sustainable agriculture and its relationship to the drivers of climate change. Along with robust examinations of food security and the agrarian livelihood, the book covers the impact of climate change and variability on agriculture, water management in agricultural systems, and precision agriculture. This book represents a significant contribution to the scientific understanding of the application of technologies that address food insecurity and climate change through sustainable productivity, system diversification, irrigation practices, crop modeling, data analytics, and agricultural policy. It also explores the risks and benefits of different agricultural systems under changing climate scenarios. The book also offers: A thorough introduction to agriculture and food security, including the diversification of ecosystems and the impact of Covid-19 lockdowns on food security and smallholder agricultural systems Comprehensive explorations of crop diversification and the impacts of climate variability on food security in Indonesia Practical discussions of water conservation agriculture and the quality of irrigation water for sustainable agriculture development in India In-depth examinations of geoinformatics, artificial intelligence, sensor technology, and big data Perfect for academics, scientists, environmentalists, and environmental consultants, Sustainable Agriculture Systems and Technologies will also earn a place in the libraries of computing experts working in the field of agricultural science.

Regulation of Carbon and Nitrogen Reduction and Utilization in Maize

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Publisher :
ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Regulation of Carbon and Nitrogen Reduction and Utilization in Maize by : Jack C. Shannon

Download or read book Regulation of Carbon and Nitrogen Reduction and Utilization in Maize written by Jack C. Shannon and published by . This book was released on 1986 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Efficiency of Soil and Fertilizer Phosphorus Use

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Publisher : Fao Fertilizer and Plant Nutri
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Efficiency of Soil and Fertilizer Phosphorus Use by : John Keith Syers

Download or read book Efficiency of Soil and Fertilizer Phosphorus Use written by John Keith Syers and published by Fao Fertilizer and Plant Nutri. This book was released on 2008 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: The efficient use of phosphorus (P) is essential to many agricultural and environmental issues. This bulletin reviews, analyses and synthesizes information on the efficient use of soil and fertilizer P. It presents information on the plant availability of soil and fertilizer P, with an emphasis on soil plant interactions. The focus is on the changing concepts of the behaviour of both soil and fertilizer P and on the need to define and assess their recovery and, thus, P-use efficiency more appropriately.

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 1040 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1973 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.