Agricultural Nitrogen Management for Water Quality Protection in the Midwest PDF Download
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Author: Charles S. Wortmann
Publisher:
ISBN:
Category : Nitrogen in agriculture
Languages : en
Pages : 32
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Book Description
"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"--Page 3.
Author: Charles S. Wortmann
Publisher:
ISBN:
Category : Nitrogen in agriculture
Languages : en
Pages : 32
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Book Description
"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"--Page 3.
Author:
Publisher:
ISBN:
Category : Agricultural systems
Languages : en
Pages : 2
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Book Description
Author: Ronald F Follett
Publisher: Elsevier
ISBN: 0444599398
Category : Technology & Engineering
Languages : en
Pages : 412
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Nitrogen in agriculture
Languages : en
Pages : 22
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Book Description
Author: Stephanie Ann McCaslin
Publisher:
ISBN:
Category :
Languages : en
Pages : 324
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Book Description
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.
Author: E. R. Flint
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 42
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309177812
Category : Nature
Languages : en
Pages : 252
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Book Description
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.
Author: John R. Jared
Publisher:
ISBN:
Category : Agricultural pollution
Languages : en
Pages : 15
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Book Description
Author: Midwest Laboratories
Publisher:
ISBN:
Category : Agronomy
Languages : en
Pages : 90
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Book Description
Author: M. Naeem
Publisher: Springer Nature
ISBN: 303041552X
Category : Technology & Engineering
Languages : en
Pages : 443
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Book Description
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.
