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Agricultural Nitrogen Management For Water Quality Protection In The Midwest
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Book Synopsis Agricultural Nitrogen Management for Water Quality Protection in the Midwest by : Charles S. Wortmann
Download or read book Agricultural Nitrogen Management for Water Quality Protection in the Midwest written by Charles S. Wortmann and published by . This book was released on 2006 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This publication provides an overview of factors influencing nitrogen loss to ground and surface waters in the four-state Heartland region of Iowa, Kansas, Missouri and Nebraska"--P. 3.
Book Synopsis Evaluating Nitrogen Management Strategies for Groundwater Quality Improvement Under a Changing Climate Across the Wisconsin Central Sands by : Tracy Alanna Campbell
Download or read book Evaluating Nitrogen Management Strategies for Groundwater Quality Improvement Under a Changing Climate Across the Wisconsin Central Sands written by Tracy Alanna Campbell and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Across the Midwest, farmers, researchers, policy makers and communities are confronting increasing groundwater contamination due to agricultural practices, particularly the use of synthetic nitrogen fertilizer, coupled with the challenge of employing these practices to continue growing profitable crops. Additionally, not only are the impacts of agricultural practices felt at the local level-often in the form of agricultural runoff, unsafe drinking water, soil erosion, and decreased stream and lake levels-but also nationally. As agricultural runoff travels downstream to the Gulf of Mexico, excess nutrients have resulted in dead zones. It is likely that ongoing and future climate change across the Midwest will exacerbate current struggles and may leave many fields more vulnerable to nitrate leaching. Moving forward, to ensure safe drinking water and restore and protect ecosystem services, nitrogen management strategies need to be improved and implemented. The Wisconsin Central Sands (WCS) faces many of the challenges felt by communities across the Midwest when managing agricultural land with growing water quality contamination. The WCS region serves as a case study in improving nitrogen management for groundwater quality. To better identify pathways to improved groundwater quality, we incorporated on-farm research related to drivers of water quality variability, observations of soil-plant-environment interactions, agroecosystem modeling, and farmer surveys. In chapter one, we evaluated/quantified the spatiotemporal variability of nitrate concentrations in irrigation water across the WCS region. Additionally, we analyzed the influence of well depth, well casing diameter, nitrogen application rate, year and week of sampling event on nitrate concentration in irrigation water. We found that nitrate levels varied more across space than time, that nitrogen application rate was the most significant predictor of nitrate concentration, and that on average, nitrate levels in irrigation water across the WCS are 19.0 mg/L, or nearly twice the threshold for safe drinking water set by the EPA. In chapter two, we measured leaf level photosynthesis and calculated key photosynthetic parameters for two cultivars of potato grown under four nitrogen application rates. We found that nitrogen application rate (season total N), days after emergence (DAE), and temperature were significant predictors of Vcmax (maximum rate of carboxylation). We also found that at the highest level of nitrogen application (403.5 kg N/ha), both N content (%) and Vcmax declined relative to a nitrogen application rate of 336.3 kg N/ha. In chapter three, we modeled the impact of nitrogen best management practices (BMPs) with varied N rates on irrigated corn yield and nitrate leaching. To better understand the effectiveness and tradeoffs of BMPs considering increased weather variability, we used cluster analysis to group similar weather years. We found that nitrate leaching could be reduced through the use of BMPs (20%) and reduced nitrogen application rates (40%), but there was little room for mitigation during years experiencing wetter than average growing seasons. Additionally, nitrate concentration in the groundwater never reached safe/healthy levels (below 10 mg/L) in our simulations. In chapter four, we surveyed farmers on their current use of nitrogen BMPs, levels of concern towards environmental and economic challenges, as well as barriers to implementing certain BMPs. Our findings highlight that growers feel the greatest level of concern for the cost of government regulation and ineffective government policies, and 100% of respondents felt at least a little concerned about groundwater quality. While the BMP of split application was widely adopted (69%), growers perceived lack of information as a substantial barrier to adopting the practice of crediting nitrate in irrigation water.
Book Synopsis Nitrogen Management and Ground Water Protection by : Ronald F Follett
Download or read book Nitrogen Management and Ground Water Protection written by Ronald F Follett and published by Elsevier. This book was released on 2012-12-02 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supplying crops with adequate nitrogen is vital to ensuring food supplies. Once nitrogen is added to the soil, it is subject to chemical transformations of the nitrogen-cycle including transformation to nitrate. Excessive amounts of accumulated nitrate may then leach out of the soil and could potentially enter and contaminate drinking water supplies. The purpose of this book is to examine the subject of nitrogen management and ground water protection. The issue of maintaining ground water quality is addressed primarily from an agronomic point of view. Topics covered include: health and economic aspects of nitrate in drinking water; nitrate sources; ground water nitrate in the USA and other developed countries; transport, leaching and accounting for nitrogen; soil, nitrogen, crop and water management; and nitrate in aquifer systems. The book contains a keyword index and is organized into thirteen chapters, each with appropriate references, tables and figures. Chapter authors are among the leading experts on the subject of nitrate and ground water quality. Readers to whom the book is directed include soil scientists and agronomists, agricultural engineers (irrigation and drainage), environmental scientists, agricultural policy makers, and hydrologists.
Book Synopsis Agricultural Nitrogen Management Helps Protect Water Quality by :
Download or read book Agricultural Nitrogen Management Helps Protect Water Quality written by and published by . This book was released on 2000 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agricultural Nitrogen Management to Protect Water Quality by :
Download or read book Agricultural Nitrogen Management to Protect Water Quality written by and published by . This book was released on 1998 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fertilizer Suggestions by : E. R. Flint
Download or read book Fertilizer Suggestions written by E. R. Flint and published by . This book was released on 1905 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen Losses from Midwestern Watersheds by : Stephanie Ann McCaslin
Download or read book Nitrogen Losses from Midwestern Watersheds written by Stephanie Ann McCaslin and published by . This book was released on 2000 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is an essential element in our natural environment, and especially critical for crop production to maintain economic yield from crop production. Nitrogen is considered a major contributor for the Northern Gulf of Mexico hypoxic zone. Nitrogen losses from agriculture are the cause for concern because of the increasing scientific data suggesting N is the leading cause of the hypoxic zone. This interpretation leads the public to believe that agricultural N needs to be regulated. Past research suggests that nitrate concentrations in the Upper Midwest streams and rivers have high nitrate levels due to fertilizers. These studies have been done on large-scale watersheds, which implicates that smaller tributaries are responsible for the increasing amount of N concentrations in the Mississippi River Basin. This study evaluates the N loss from selected smaller tributaries of the Upper Midwest, their N concentrations, and the amount of fertilizer applied in five Midwestern states; Illinois, Iowa, Minnesota, Missouri, and Wisconsin. A loss of N was found from every state but a large variation exists within and among states. Higher application rates of N in Iowa and Illinois create greater N loadings in these watersheds. A consistent trend in the amount of N lost vs. applied was not found in the watersheds evaluated. This study illustrates the amount of N does need to be reduced, but it shows no significant relationship from the amount applied to the amount lost. Therefore, nutrient management should be based on the practices for managing N application and N loss.
Book Synopsis Contaminants in Agriculture by : M. Naeem
Download or read book Contaminants in Agriculture written by M. Naeem and published by Springer Nature. This book was released on 2020-04-25 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume covers recent studies into agricultural problems caused by soil and water contamination. Considering the importance of agricultural crops to human health, the editors have focused on chapters detailing the negative impact of heavy metals, excessive chemical fertilizer use, nutrients, pesticides, herbicides, insecticides, agricultural wastes and toxic pollutants, among others, on agricultural soil and crops. In addition, the chapters offer solutions to these negative impacts through various scientific approaches, including using biotechnology, nanotechnology, nutrient management strategies, biofertilizers, as well as potent PGRs and elicitors. This book serves as a key source of information on scientific and engineered approaches and challenges for the bioremediation of agricultural contamination worldwide. This book should be helpful for research students, teachers, agriculturalists, agronomists, botanists, and plant growers, as well as in the fields of agriculture, agronomy, plant science, plant biology, and biotechnology, among others. It serves as an excellent reference on the current research and future directions of contaminants in agriculture from laboratory research to field application.
Book Synopsis Mississippi River Water Quality and the Clean Water Act by : National Research Council
Download or read book Mississippi River Water Quality and the Clean Water Act written by National Research Council and published by National Academies Press. This book was released on 2008-02-08 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mississippi River is, in many ways, the nation's best known and most important river system. Mississippi River water quality is of paramount importance for sustaining the many uses of the river including drinking water, recreational and commercial activities, and support for the river's ecosystems and the environmental goods and services they provide. The Clean Water Act, passed by Congress in 1972, is the cornerstone of surface water quality protection in the United States, employing regulatory and nonregulatory measures designed to reduce direct pollutant discharges into waterways. The Clean Water Act has reduced much pollution in the Mississippi River from "point sources" such as industries and water treatment plants, but problems stemming from urban runoff, agriculture, and other "non-point sources" have proven more difficult to address. This book concludes that too little coordination among the 10 states along the river has left the Mississippi River an "orphan" from a water quality monitoring and assessment perspective. Stronger leadership from the U.S. Environmental Protection Agency (EPA) is needed to address these problems. Specifically, the EPA should establish a water quality data-sharing system for the length of the river, and work with the states to establish and achieve water quality standards. The Mississippi River corridor states also should be more proactive and cooperative in their water quality programs. For this effort, the EPA and the Mississippi River states should draw upon the lengthy experience of federal-interstate cooperation in managing water quality in the Chesapeake Bay.
Book Synopsis Nitrogen Management in Agriculture and Water Quality by : John R. Jared
Download or read book Nitrogen Management in Agriculture and Water Quality written by John R. Jared and published by . This book was released on 1989 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen Management in Agricultural Soils by : Midwest Laboratories
Download or read book Nitrogen Management in Agricultural Soils written by Midwest Laboratories and published by . This book was released on 1994 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen in the Environment: Sources, Problems and Management by : R.F. Follett
Download or read book Nitrogen in the Environment: Sources, Problems and Management written by R.F. Follett and published by Gulf Professional Publishing. This book was released on 2001-12-03 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen in the Environment: Sources, Problems, and Management is the first volume to provide a holistic perspective and comprehensive treatment of nitrogen from field, to ecosystem, to treatment of urban and rural drinking water supplies, while also including a historical overview, human health impacts and policy considerations. It provides a worldwide perspective on nitrogen and agriculture. Nitrogen is one of the most critical elements required in agricultural systems for the production of crops for feed, food and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Strategies and perspectives are considered to improve nitrogen-use efficiency. Issues of nitrogen in crop and human nutrition, and transport and transformations along the continuum from farm field to ground water, watersheds, streams, rivers, and coastal marine environments are discussed. Described are aerial transport of nitrogen from livestock and agricultural systems and the potential for deposition and impacts. The current status of nitrogen in the environment in selected terrestrial and coastal environments and crop and forest ecosystems and development of emerging technologies to minimize nitrogen impacts on the environment are addressed. The nitrogen cycle provides a framework for assessing broad scale or even global strategies to improve nitrogen use efficiency. Growing human populations are the driving force that requires increased nitrogen inputs. These increasing inputs into the food-production system directly result in increased livestock and human-excretory nitrogen contribution into the environment. The scope of this book is diverse, covering a range of topics and issues from furthering our understanding of nitrogen in the environment to policy considerations at both farm and national scales.
Book Synopsis Nitrogen in the Environment by : J.L. Hatfield
Download or read book Nitrogen in the Environment written by J.L. Hatfield and published by Elsevier. This book was released on 2008-08-28 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is one of the most critical elements for all life forms. In agricultural systems it is essential for the production of crops for feed, food, and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Nitrogen in the Environment provides a wholistic perspective and comprehensive treatment of nitrogen. The scope of this book is diverse covering a range of topics and issues related to furthering our understanding of nitrogen in the environment at farm and national levels. Issues of nitrogen from its effects on crops and human nutrition to nitrogen in ground water, watersheds, streams, rivers, and coastal marine environments are discussed to provide a broad view of the problem and support scientists, researchers, and engineers in formulating comprehensive solutions. The only source which presents an international, wholistic perspective of the effects of nitrogen in the environment with worldwide mitigation practices Provides details on how to improve the quality of the environment by analyzing the development of emerging technologies Develops strategies to be used by soil scientists, agronomists, hydrologists, and geophysicists for broad scale improvement of nitrogen efficiency
Book Synopsis Optimizing Nitrogen Management in Food and Energy Production and Environmental Protection by : J. Galloway
Download or read book Optimizing Nitrogen Management in Food and Energy Production and Environmental Protection written by J. Galloway and published by CRC Press. This book was released on 2002-01-01 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of food and energy interfere with the natural nitrogen cycle of the earth. Many of these changes are beneficial, while others are detrimental to societies and the environment. The changing nature of nitrogen in the global environment crosses scientific disciplines, geographical boundaries and political divisions and challenges the creative minds of natural and social scientists, economists, engineers, business leaders and planners. The papers in this book give readers a panoramic view of the changing nature of reactive nitrogen in the global environment, enabling them to make better choices about nitrogen management in food production and consumption, energy production and use, and environmental protection.
Download or read book Agriculture Fact Book written by and published by . This book was released on 1994 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Farm Transitions Toolkit by : Jane Grimsbo Jewett
Download or read book Farm Transitions Toolkit written by Jane Grimsbo Jewett and published by . This book was released on 2011 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agriculture--a River Runs Through it by : Paul D. Capel
Download or read book Agriculture--a River Runs Through it written by Paul D. Capel and published by Geological Survey. This book was released on 2018 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Format not distributed to depository libraries.
