Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 630

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

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Author: Kenneth Mathews
Publisher: CreateSpace
ISBN: 9781518771439
Category :
Languages : en
Pages : 28

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As the last quarter of 2015 begins, production data show that total red meat and poultry production, aggregated over the first three quarters of 2015, increased by less than 1 percent over the same period of 2014. In the first three quarters of 2015, beef production is about 3 percent below production in the same period last year. Cattle prices so far in 2015 have averaged almost 3 percent above prices in the same period of 2014. Production effects of disease outbreaks link the pork and poultry sectors, but in divergent directions: the pork sector continues to recover from the effects of porcine epidemic diarrhea (PEDv) outbreaks last year, with total production in the first three quarters of 2015 almost 8 percent ahead of the same period in 2014. The poultry sector is recovering from Highly Pathogenic Avian Influenza (HPAI), the effects of which has fallen so far on the turkey sector (2 percent lower production) and the egg sector (5 percent lower production). Turkey prices have averaged almost 6 percent above the same period last year; average egg prices are almost 36 percent above the same period of 2014. Broiler production is up in 2015 by 4 percent.

Author: Agriculture Dept., Forest Service, National Technology & Development Program
Publisher: Government Printing Office
ISBN: 9780160935923
Category : Business & Economics
Languages : en
Pages : 130

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Over 1.6 million miles of dirt and gravel roads exist within the United States providing a vital part of the nation's transportation system. An environmentally sensitive road maintenance practice is a practice that when implemented reduces the adverse effect of a road on the environment by treating the cuase of the problem and is in keeping wtih the natural landscape. This illustrated field guide provides examples of environmentally sensitive maintenance practices, which if implemented reduce erosion and sediment, maintain subsurface hydrologic connectivity, restore drainage density to more natural conditions, and eliminate diversion potential. It is organized to identify visual signs and problems associated with CAUSES and SOLUTIONS for the most commonly encountered road problens (road surface, ditch, cutbank, etc.) Highway inspectors, public works construction inspectors, to include some construction and building inspectors and engineers that must meet compliance with specifications, building codes, and other regulations, Additionally, City engineers, concrete masonry contractors, road maintenance specialists and workers, and technicians, as well as County Road Supervisors may ber interested in this volume. Students pursuing degree programs for Civil Engineering or certificates of study for Industrial Maintenance Technology or Public Works training in clases such as Roadway Asset Management Essentials, or Inspecting Pavement Markings or certified Public Infrastructure Inspector courses may be interested in this print field guide as a handy reference. Related products: Sign Up for the Public Roads print subscription to begin receiving valuable guidance bimonthly from the U.S. Department of Transportation Federal Highway Administration here: https://bookstore.gpo.gov/products/sku/750-005-00000-4?ctid= Drainage Manual can be found here: https://bookstore.gpo.gov/products/sku/024-003-00177-5 Field Book for Describing and Sampling Soils, Version 3.0 is available for purchase here: https://bookstore.gpo.gov/products/sku/001-000-04758-2 Converging Waters: Integrating Collaborative Modeling With Participatory Processes to Make Water Resources Decisions can be found here: https://bookstore.gpo.gov/products/sku/008-022-00349-5 Gravel Roads Construction and Maintenance Guide is available for purchase here: https://bookstore.gpo.gov/products/sku/050-001-00348-1 Designing Sustainable Off-Highway Vehicle Trails: An Alaska Train Manager's Perspective is available here: https://bookstore.gpo.gov/products/sku/001-001-00701-3 Other resources that may be of interest produced by the United States Department of Transportation (USDOT) can be found here: https://bookstore.gpo.gov/agency/199 Other publications produced by the U.S. Forest Service within the United States Department of Agriculture can be found here: https://bookstore.gpo.gov/agency/819 , .

Author:
Publisher:
ISBN:
Category : Germplasm resources, Plant
Languages : en
Pages : 1024

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Author: National Agricultural Library (U.S.)
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 150

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Author:
Publisher:
ISBN:
Category : AGRICOLA (Information retrieval system)
Languages : en
Pages : 172

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Author: Yanbo Huang
Publisher: Springer Nature
ISBN: 3030721027
Category : Technology & Engineering
Languages : en
Pages : 264

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Agricultural systems are uniquely complex systems, given that agricultural systems are parts of natural and ecological systems. Those aspects bring in a substantial degree of uncertainty in system operation. Also, impact factors, such as weather factors, are critical in agricultural systems but these factors are uncontrollable in system management. Modern agriculture has been evolving through precision agriculture beginning in the late 1980s and biotechnological innovations in the early 2000s. Precision agriculture implements site-specific crop production management by integrating agricultural mechanization and information technology in geographic information system (GIS), global navigation satellite system (GNSS), and remote sensing. Now, precision agriculture is set to evolve into smart agriculture with advanced systematization, informatization, intelligence and automation. From precision agriculture to smart agriculture, there is a substantial amount of specific control and communication problems that have been investigated and will continue to be studied. In this book, the core ideas and methods from control problems in agricultural production systems are extracted, and a system view of agricultural production is formulated for the analysis and design of management strategies to control and optimize agricultural production systems while exploiting the intrinsic feedback information-exchanging mechanisms. On this basis, the theoretical framework of agricultural cybernetics is established to predict and control the behavior of agricultural production systems through control theory.

Author: Andrew N. Sharpley
Publisher: CRC Press
ISBN: 9781566704946
Category : Technology & Engineering
Languages : en
Pages : 256

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Using the Chesapeake Bay as a case study, Agriculture and Phosphorus Management discusses the impact and management of phosphorus in watersheds. Although urban and other sources contribute phosphorus to the Bay, the papers presented focus on how its role in agriculture impacts water quality. They review the new guidelines and legislation slated for implementation by 2002 directed towards sustainable nutrient management and strategies for implementing them. Phosphorus, an essential element for plant and animal growth, has long been recognized as necessary to eliminate deficiencies and to maintain profitable crop and livestock production. It can increase the biological productivity of surface waters by accelerating eutrophication. Human activities accelerate the rate of eutrophication - principally by increasing the rate at which phosphorus enters the aquatic system. Written by experts from a range of disciplines Agriculture and Phosphorus Management provides a deeper understanding of the diverse, dynamic, and complex factors controlling the impact of agricultural phosphorus management on production and water quality. Each contributor addresses the questions: what do we know, what do we still need to know, where are the major gaps in our knowledge, and how does the information relate to phosphorus management strategies in the Bay Watershed, and other watersheds? As a result this series of papers provides a unique collection of information of regional, national, and international significance and gives prioritized phosphorus management options for not only the Chesapeake Bay Watershed, but for watersheds around the world.

Author: Etats-Unis. Department of agriculture
Publisher:
ISBN:
Category :
Languages : en
Pages : 68

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