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nitrate leaching united states

Nitrate Leaching : USDA ARS

Some occurrences of high nitrate nitrogen NO 3 N concentrations in groundwater supplies have been attributed to agricultural irrigation and fertilization practices. Much of the agricultural land in NGP non irrigated dryland crops and range lands and is not subject to high rates of N fertilization, and any leaching can be largely controlled

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Effects of nitrogen deposition on nitrate leaching

2017 8 8&ensp·&enspEffects of nitrogen deposition on nitrate leaching from forests of the northeastern United States will change with treeposition Katherine F. Crowley, Gary M. Lovett Cary Institute of Ecosystem Studies, Box AB, 2801 ShXinhai Turnpike, Millbrook, NY 12545, USA.

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Nitrate in the Mississippi River Basin

2018 9 29&ensp·&enspThe increase in pollution of the Mississippi River has greatly affected the species that live in the water, as well as those who rely on the river for food and recreational purposes. One of the main types of pollution is an excess of nitrate caused by chemical wastes from power plants and agricultural runoffs.The watershed covers about 40 of the lower 48 states, with 7 of the 10 top

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Irrigation and Fertilizer Management to Minimize Nitrate

2011 4 14&ensp·&enspNitrate contamination of ground water has been a problem in the United States for many years and continues to occur. A survey of wells conducted by the U.S. Geological

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Miscanthus and Switchgrass Production in Central Illinois

2013 7 10&ensp·&enspMaizesoybean nitrate leaching averaged 40.4 kg N ha1 yr , whereas switchgrass and Miscanthus had values of 1.4 and 3.0 kg N ha1 yr1, respectively. of the studies on switchgrass in the United States have focused on the Great Plains, where precipitation and leaching are much

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Nitrate leaching losses and pasture yields as affected

Nitrate NO 3 is a contaminant and, at high concentrations, is deemed harmful to human health WHO 1984.It can also contribute to surfacetrophication and thus deterioration of water quality. Nitrate leaching from agricultural land is the main source of NO 3 in most surface and ground water bodies around the globe Di and Cameron 2002a.

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Spatial patterns of soil nitrification and nitrate export

In the northeastern United States, total N deposition rates have usually been <12 kg ha 1 yr 1 During the growing season, plant uptake limits leaching of nitrate and overall downward water movement is also limited by evapotranspiration .

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Simulation of potato yield, nitrate leaching, and profit

The Columbia Basin in the Pacific Northwest is a highly productive area for potatoes in the United States. Here, nitrate is the most frequently documented groundwater contaminant, and the challenge of maximizing crop productivity while minimizing the nitrate pollution still remains.

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Cover crops in the upper midwestern United States

Abstract. A fall planted winter cover crop is an agricultural management practice with multiple benefits that may include reducing nitrate NO 3 losses from artificial drained agricultural fields.While the practicemonly used in the southern and eastern United States, little is known about its efficacy in midwestern states where winters are longer and colder, and artificial subsurface

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Soil Texture Effect on Nitrate Leaching in Soil Percolates

2009 8 28&ensp·&enspNitrate nitrogen NO 3 N, which is an essential source of nitrogen N for plant growth, is now also considered a potential pollutant by the Environmental Protection Agency EPA. This is because excess applied amounts of N03 N can move into streams by runoff and into ground water by leaching, therebyg an environmental hazard.

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Risk of Nitrate in Groundwaters of the United States A

2007 1 18&ensp·&enspMueller and otherspared nitrate concentrationsin groundwater across the Nation by land use, well depth, well type, aquifer type, soil drainage characteristic, and geographic region.

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EFFECT OF FERTILIZER SOURCE ON NITRATE LEACHING,

2010 5 6&ensp·&enspEFFECT OF FERTILIZER SOURCE ON NITRATE LEACHING, PLANT WATER CONSUMPTION, AND TURF AND ORNAMENTAL QUALITY By Nitrate Leaching mg L 1 The United States Environmental Protection Agency EPA limit for NO3 N in 1 . 2

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NITROGEN LEACHING FROM DAIRY PASTURES IN THE

2016 1 13&ensp·&enspin the Northeast United States, its environmental impact needs to be evaluated in the temperate continental climate of this region of the world. MA TERIALS AND METHODS

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NITRATE LEACHING IN FLORIDA URBAN ENVIRONMENTS

2017 9 14&ensp·&enspmg/L. Nitrate concentrations above 4 mg/L can affect humanactivities and the United States Environmental Protection Agency has established 10 mg/L as the maximum contamination level .

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Nitrate in Groundwater of the United States,

2018 8 22&ensp·&enspAn assessment of nitrate concentrations in groundwater in the United States indicates that concentrations are highest in shallow, oxic groundwater beneath areas with high N inputs. During 19912003, 5101 wells were sampled in 51 study areas throughout the U.S. as part of the U.S. Geological Survey National Water Quality Assessment NAWQA program.

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Cover crops in the upper midwestern United States

Abstract. Nitrate NO 3 losses from agricultural lands in the Midwest flow into the Mississippi River Basin MRB and contribute significantly to hypoxia in the Gulf of Mexico.Previous work has shown that cover crops can reduce loadings, but adoption rates are low, and the potential impact if cover crops were widely adopted is currently unknown.

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LOSS OF NITRATE NITROGEN BY RUNOFF AND

2017 7 2&ensp·&enspis a major cause of poor water quality in the United States. Scientists NRCS developed a technique to estimate the impact of agricultural Key words: Runoffnitrate N, leaching water, leaching nitrate N, runoff water, agricultural watershed. Ti E presence of nitrates and other soluble forms of nitrogen and phosphorus in sur

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Journal of Environmental Quality Abstract

2018 8 30&ensp·&enspThe potential for NO 3 N runoff and leaching was estimated for a total of 128 591 sites using information on soil, climate, crop, rotation, tillage, irrigation, and conservation practices at each site.

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Simulation of potato yield, nitrate leaching, and profit

The Columbia Basin in the Pacific Northwest is a highly productive area for potatoes in the United States. Here, nitrate is the most frequently documented groundwater contaminant, and the challenge of maximizing crop productivity while minimizing the nitrate pollution still remains.

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Drainage and Nitrate Leaching from Artificially Drained

artificially drained soils in two different regions of the United States, and on manured and nonmanured maize production systems, will support the application of the PNM model in studies of regional N

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Cover crops in the upper midwestern United States

2017 8 3&ensp·&enspWhile the practicemonly used in the southern and eastern United States, little is known about its efficacy in midwestern states where winters are longer and colder, and artificial subsurface drainage is widely used in cornsoybean systems

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Nitrate Accumulation and Leaching in Surface and

2016 1 3&ensp·&enspBecause nitrate accumulation is the premise of leaching, a substantial amount of nitrate must have accumulated in the soil in the prior experiments. Then, the infiltration flow provides a carrier for the accumulated NO 3 N in the soil profiles to move down, finally presenting the possibility of contaminating the groundwater .

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Recommended Soil Nitrate Tests Amazon S3

2015 7 8&ensp·&enspRecommended Soil Nitrate Testsmended Soil Testing Procedures for the Northeastern United States Last Revised 10/2009 29mended Extractants and Extracting Procedures for Soil NO

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NITROGEN ACCUMULATION AND CHANGES IN NITRATE

2011 1 21&ensp·&enspPine silviculture in the southern United States has utilised plantation management on Williams GreshamNitrogen accumulation and nitrate leaching 267 management included mechanical and chemical site preparation,ic improvement of growing stock, chemical seedling release, and fertiliser application at both planting and mid

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Nitrate Leaching from Sand and Pumice Geomedia

2017 10 9&ensp·&enspenvironments Article Nitrate Leaching from Sand and Pumice Geomedia Amended with Pyrogenic Carbon Materials Jihoon Kang 1,* ID, Marissa Davila 2, Sergio Mireles 1 and Jungseok Ho 3 1 School of Earth, Environmental and Marine Sciences, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA [email protected]

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Nitrate Leaching from Sand and Pumice Geomedia

2017 10 9&ensp·&enspAmended with Pyrogenic Carbon Materials Jihoon Kang 1,* ID, Marissa Davila 2, Sergio Mireles 1 and Jungseok Ho 3 materials as an amendment to geomedia to reduce nitrate leaching. Batch adsorption and column The United States Environmental Protection Agency USEPA has set the Maximum Contaminant Level MCL of nitrate nitrogen

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National look at nitrate contamination of Ground Water

Risk of ground water contamination by nitrate varies across the United States The risk of ground water contamination by nitrate depends both on the nitrogen input to the land surface and the degree to which an aquifer is vulnerable to nitrate leaching and accumulation.

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Cover crops in the upper midwestern United States

Cover crops in the upper midwestern United . States: Potential adoption and reduction of adoptioncover cropshypoxiaMississippi Rivernitrate leachingwater quality.

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Long Term Drainage and Nitrate Leaching below Well

2014 4 30&ensp·&enspApproximately one half of the United States drinkinges from groundwater while in upper Mid nutrient reduction strategies, there is a need for quality nitrate leaching data that represents a wide spectrum of landscape practices and hydrologic settings.

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Nitrate leaching under irrigation in the United

1988 10 26&ensp·&enspThe literature was reviewed for nitrate leaching under irrigation. The mass of nitrate leached is directly related to the percolation volume. Both water management and nitrogen management are important in controlling nitrate leaching. Applying only enough nitrogen fertilizer to meet yield goals, timing of nitrogen application and the use of slow release fertilizers are nitrogen management

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Study of nitrate leaching and nitrogen fate under

The results obtained indicated that: under local conventional agronomic practices, there is a high discrepancy in leaching nitrate N concentration ranging from 17 to 457 mg L 1, and nitrate losses 152347 kg N ha 1 were observed from 1 m soil profiles in the field.

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Sulphate, Nitrogen and Base Cation Budgets at 21

2004 7 2&ensp·&enspSulphate, Nitrogen and Base Cation Budgets at 21 Forested Catchments in Canada, the United States and Europe. Authors Authors and affiliations Shaun A. Watmough Julian Aherne was retained in the catchments, although there was a tendency for greater NO 3 N leaching at sites receiving higher <7 kg ha 1 per year bulkanic N

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nitrate leaching Fort Collins Science Center

2012 10 10&ensp·&enspHuman activity in the last century has led to a significant increase in nitrogen N emissions and atmospheric deposition. This N deposition has reached a level that has caused or is likely to cause alterations to the structure and function of many ecosystems across the United States.

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Cover crops in the upper midwestern United States

Cover crops in the upper midwestern United States: Potential adoption and reduction of nitrate leaching in the Mississippi River Basin E.J. Kladivko, T.C. Kaspar Nitrate leaching to subsurface drains as affected by drain spacing and changes in crop production system.

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Cover crops in the upper midwestern United States

Not available in this view. Citing Articles via Web of Science 26 Articles citing this article Google Scholar. Articles by Kladivko, E. Articles by Searchinger, T.

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Nitrate Leaching from Sand and Pumice Geomedia

2017 10 3&ensp·&enspThe United States Environmental Protection Agency USEPA has set the Maximum Contaminant Level MCL of nitrate nitrogen NO 3 N at 10 mg L 1 =44.2 mg NO 3 L 1 for the safety of drinking water.

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Nitrate leaching under irrigation in the United

2018 10 5&ensp·&enspNitrate leaching under irrigation in the United Statesa review Article in Journal of Environmental Science and Health Part A Environmental Science and Engineering 244:349 378 ·

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Effect of biochar amendment on sorption and leaching of

2012 10 8&ensp·&enspShort Communication Effect of biochar amendment on sorption and leaching of nitrate, ammonium, and phosphate in a sandy soil Ying Yaoa, Bin Gaoa,, Ming Zhanga, Mandu Inyanga, Andrew R. Zimmermanb a Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States bDepartment of Geological Sciences, University of Florida,

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Reduced nitrate leaching and enhanced denitrifier activity

2006 3 13&ensp·&enspNitrate leaching and runoff into rivers and estuarine ecosys tems are responsible for algal bloomstrophication and also pose a public health risk 6, 7.

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1997_Risk of Nitrate in Groundwaters of the United States

2013 3 2&ensp·&ensp1997_Risk of Nitrate in Groundwaters of the United States_//__ 00 1997_Risk of Nitrate in

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