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nitrate leaching united states

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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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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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, Phosphate, and Potassium Leaching from

2007 5 17&ensp·&enspmany areas of the United States. Nitrate levels 10 ppm in drinking water are considered unsafe for humans U.S. Environmental Pro tection Agency, 1982, and PO4 P often is Nitrate leaching generally decreased over time, PO4 P leaching increased, and K remained relatively

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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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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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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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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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In Situ Measurements of Nitrate Leaching Implicate Poor

2017 2 7&ensp·&enspNitrate is one of the most widespread ground water and Thorne, 1980. pollutants, and drinking water with a large NO Management practices to reduce NO 3 loss must be

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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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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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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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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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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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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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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 4 EFFECT OF FERTILIZER SOURCE ON NITRATE LEACHING AND The United States Environmental Protection Agency EPA limit

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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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Simulating weather effects on potato yield, nitrate

Nitrate leaching was higher with a larger irrigation and on a lighter soil. Tuber yields and profit margins were smaller on a lighter soil. 400 300 mm of irrigation

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Groundwater pollution

2018 10 13&ensp·&enspGroundwater pollution Nitrate Nitrate is the most wastewater infiltrating into the aquifer are among emerging ground water contaminants being studied throughout the United States. Popularticals such as antibiotics, anti inflammatories, antidepressants, decongestants

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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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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, Phosphate, and Potassium Leaching from

2007 5 17&ensp·&enspmany areas of the United States. Nitrate levels 10 ppm in drinking water are considered unsafe for humans U.S. Environmental Pro tection Agency, 1982, and PO4 P often is Nitrate leaching generally decreased over time, PO4 P leaching increased, and K remained relatively

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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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NITROGEN ACCUMULATION AND CHANGES IN NITRATE

2017 4 18&ensp·&enspIN NITRATE LEACHING AFTER 4 YEARS OF INTENSIVE FOREST CULTURE ON MARGINAL AGRICULTURAL LAND* THOMAS M. WILLIAMS and CHARLES A. GRESHAM Pine silviculture in the southern United States has utilised plantation management on industrial forest lands for the past four decades. During those four decades the harvest rates

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Probability of Nitrate Contamination of Recently

2018 6 28&ensp·&enspA new logistic regression LR model was used to predict the probability of nitrate contamination exceeding 4 mg/L in predominantly shallow, recently recharged groundwaters of the United States.

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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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Nitrate Leaching : USDA ARS

An official website of the United States government. Here's how you know. Interactive Effects of Tillage and Rotational Cropping Systems on Nitrate Leaching. shallow groundwater pollution with nitrate and other agrochemicals can be a major environmental concern in eastern Montana and western North Dakota under irrigated crops.

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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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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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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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The Mechanism of Nitrate Pollution in Soil and Groundwater

2018 10 12&ensp·&enspNitratepollution have caused great attention in 1950s overseas.In the 1960s, some developed countries in Europe and the United States began to focus on soil and , it start

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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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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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Risk of Nitrate in Groundwaters of the United States A

2007 1 18&ensp·&enspRisk of Nitrate in Groundwaters of the United StatessA National Kellogg and others 12 predicted the leaching potential of nitrogen fertilizer for the conterminous United States. identify areas in the United States at risk of nitrate contami nationofshallowgroundwater. Areaswithwell drainedsoils,

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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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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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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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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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