Download or read book Determination of Ammonia Flux from Swine Effluent Applied to Calcareous Soils written by Karmen Shawn Tapp Zupancic and published by . This book was released on 1999 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantifying Ammonia Volatilization from Swine Effluent Applied Calcareous Clay Loams in the Southern Great Plains written by Adinarayana Reddy Malapati and published by . This book was released on 2006 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study conducted during summer of 2004 and 2005 to evaluate ammonia volatilization from swine effluent on calcareous clayey loam soils. Ammonia volatilization from applied swine effluent ranged from 21.7% to 57.8%. On an average, 58% of the total volatilization loss occurred within 12 hrs of application. The plant material significantly reduced volatilization loss as compared to conventional till soils. The second objective to evaluate measured ammonia volatilization from swine effluent applied conventional till, no-till and buffalograss production system compared to a mechanistic model. The predicted volatilization was 25% and 70% greater in magnitude compared to measured values under buffalograss and no-till systems, respectively. The present model predicted patterns of NH3 volatilization from swine effluent when applied to fallow systems. For model predictions in no-till systems, saturated hydraulic conductivity of the soil based on the percent residue cover on the ground has to be measured.
Download or read book Proceedings of the Great Plains Soil Fertility Conference written by and published by . This book was released on 2000 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ammonia Volatilization from Applied Swine Effluent in the Southern Great Plains written by Jason George Warren and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements Modeling and Analysis of Ammonia Flux from Hog Waste Treatment Technologies written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Gaseous ammonia has a relatively short residence time in the atmosphere, depositing quickly back to the earth's surface. Excessive ammonia deposition can enhance environmental processes such as eutrophication of aquatic ecosystems. Atmospheric ammonia that does not deposit quickly combines with acidic species, such as sulfuric acid, nitric acid, and hydrochloric acid, to form ammonium aerosols. Ammonium aerosol has a longer residence time in the atmosphere and therefore travels farther distances from the source than gaseous ammonia does. Eventually, ammonium aerosol undergoes deposition, also affecting the earth's ecosystems. Domestic animal waste comprises the largest global source of atmospheric ammonia. Ammonia emissions from agricultural operations have recently attracted attention in the state of North Carolina due to the rapid expansion of the state's swine industry over the past decade. In order to assess the potential effects of enhanced ammonia emission due to the large hog population, quantitative measurements of ammonia emissions from commercial swine operations must be made. Traditionally, hog operations utilize waste treatment lagoon and spray field technology for waste management. This study includes ammonia flux measurements from three farms with potential environmentally superior waste treatment technologies. These experimental technologies potentially produce lower ammonia emissions than the traditional waste management technology does. Field measurements are conducted over liquid waste surfaces, cropland soil surfaces, the surface of a covered waste treatment lagoon, and from a hog housing unit that contains a belt removal system for waste. The measured ammonia emissions from the liquid waste surfaces have been parameterized by a multivariate physical and chemical model. A coupled mass transfer with chemical reactions model predicts ammonia flux across a gas-liquid interface, such as an air-waste lagoon interface. Ammonia flux measurements made fro.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biochar Fundamentals and Applications in Environmental Science and Remediation Technologies written by and published by Academic Press. This book was released on 2021-11-18 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochar: Fundamentals and Applications in Environmental Science and Remediation Technologies, Volume Six provides readers with the fundamentals of scientific and technological aspects of biochar application in stormwater treatment, its use in contaminant removal, greenhouse gas mitigation, as landfill cover material, and new environmental and agronomic applications. Chapters in this new release cover Biochar application for soil remediation in a redox-sensitive environment, Remediation of heavy metal contaminated soil: Role of biochar, Role of biochar as a cover material in Landfill waste disposal system- Perspective from Unsaturated soil mechanics, Biochar in soil re-engineering, Green remediation of contaminated agricultural land using biochar, and more. Additional chapters cover the Impact of biochars on redox processes in soils, Biochar for manipulation of manure properties, A relationship paradigm between biochar amendments and green house gas emissions, Biochar amalgamation with clay: Enhanced performance for environmental remediation, Functionalization of biochar using microbial consortia, and the Potential role of biochar to mitigate the negative impacts of climate change on water quality. Provides up to-date information on the use of biochar for contaminant remediation, as landfill cover material, and as a tool for energy transition Includes the aspect of biochar’s use in mitigating impacts of climate change and how manure properties can be altered through biochar addition Covers the role of microbial consortia on biochar functionalization
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soils and Fertilizers written by and published by . This book was released on 1997 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1992 with total page 1742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Assessment written by Tariq Aziz and published by Academic Press. This book was released on 2021-11-23 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen Assessment: Pakistan as a Case-Study provides a detailed overview of issues and challenges related to nitrogen use and overuse, thus serving as a reference for researchers in Pakistan and providing important insights for other geographic regions. Excess and inefficient nitrogen use in crops and livestock sectors is polluting our rivers, seas, atmosphere, and ecosystems, contributing to climate change, hampering biodiversity, and contributing to stratospheric ozone depletion. This book covers the importance of nitrogen in relation to food security, human health, and economic stability in South Asia. It also discusses nitrogen status, sources, sinks, and drivers of nitrogen use in Pakistan, focusing on current nitrogen measures and policies.Nitrogen pollution is one of the biggest challenges of 21st Century, and the international scientific community is beginning to recognize the significance of nitrogen pollution and to explore how to combat it. The editors’ institution, University of Agriculture, Faisalabad, partners with South Asia Nitrogen Hub, which includes about 30 organizations from South Asia and UK working on nitrogen assessment, budgeting, awareness, and policy guidance, as well as possible measures to reduce nitrogen pollution.Nitrogen Assessment: Pakistan as a Case-Study provides an important guide to this work and is written in a way that is accessible to an audience with a wide range of experience from advanced students to seasoned researchers. Presents an excellent compilation of research-based findings in the first comprehensive assessment of nitrogen use in Pakistan Offers a detailed and comprehensive compilation of data and content from a variety of sources Analyzes important translational insights for other geographic regions seeking to maximize nutrient use efficiency
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1995 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agriculture and Phosphorus Management written by Andrew N. Sharpley and published by CRC Press. This book was released on 1999-12-20 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Root Zone Water Quality Model written by Lajpat Ahuja and published by Water Resources Publication. This book was released on 2000 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication comes with computer software and presents a comprehensive simulation model designed to predict the hydrologic response, including potential for surface and groundwater contamination, of alternative crop-management systems. It simulates crop development and the movement of water, nutrients and pesticides over and through the root zone for a representative unit area of an agricultural field over multiple years. The model allows simulation of a wide spectrum of management practices and scenarios with special features such as the rapid transport of surface-applied chemicals through macropores to deeper depths and the preferential transport of chemicals within the soil matrix via mobile-immobile zones. The transfer of surface-applied chemicals (pesticides in particular) to runoff water is also an important component.
Download or read book Monitored Natural Attenuation of Inorganic Contaminants in Ground Water written by and published by . This book was released on 2007 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: V.3 ... consists of individual chapters that describe 1) the conceptual background for radionuclides, including tritium, radon, strontium, technetium, uranium, iodine, radium, thorium, cesium, plutonium-americium and 2) data requirements to be met during site characterization.
Download or read book Bioavailability of Contaminants in Soils and Sediments written by National Research Council and published by National Academies Press. This book was released on 2003-05-03 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
Download or read book Process Design Manual written by and published by . This book was released on 1995 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
