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Record Search Query: ServiceParameters>DATA ANALYSIS AND VISUALIZATION>STATISTICAL APPLICATIONS

Nitrogen Index Tool
Entry ID: USDA_ARS_NIT
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Summary
Abstract: The effectiveness of nitrogen fertilizer in maximizing agricultural production and increasing economic returns for farmers has led to its widespread use. However, when this element is applied to a farming system, it can enter the surrounding environment via atmospheric, surface and leaching pathways. Consultants, extension agents, farmers, and other stakeholders need tools than can be used to quickly calculate the risk of nitrogen movement into the environment. The Nitrogen Index can assist users in making these assessments by integrating data on a series of management practices, weather conditions, soil characteristics and off-site factors. This tool has been tested using data from different agroecosystems across the United States, China, Mexico, Argentina, a Mediterranean region in Spain, and the Caribbean. It has performed well in comparing the effects of different management practices on nitrogen losses by distinguishing practices with high and very high risk levels from practices with medium, low and very low risk levels.
Related URL
Link: GET SERVICE > GET SOFTWARE PACKAGE
Description: Download the Nitrogen Index Tool (registration required).

Link: VIEW RELATED INFORMATION > USER'S GUIDE
Description: Nitrogen Index Tool user manual.
Service Citation
Originators: Delgado et al.
Title: Nitrogen Index Tool
Release_Date: 2010
Provider: USDA Agricultural Research Service
Edition: 4.4
URL: http://www.ars.usda.gov/Services/docs.htm?docid=20341
ISO Topic Category
FARMING
ECONOMY
ENVIRONMENT
GEOSCIENTIFIC INFORMATION
IMAGERY/BASE MAPS/EARTH COVER
PLANNING CADASTRE
Access Constraints
Users must complete a form in order to download software.
Use Constraints
The Nitrogen Index is a tool written in the programming language Java developed by Sun Microsystems®. The user must have the most recent version of Java installed to run the Nitrogen Index which can be downloaded for free from Java's website.
Service Provider
Agricultural Research Service, U. S. Department of Agriculture

Service Provider Personnel
Name: USDA-ARS
Phone: 254-770-6500
Fax: 254-770-6561
Contact Address:
USDA-ARS
Grassland Soil and Water Research Laboratory
808 E. Blackland Rd.
City: Temple
Province or State: TX
Postal Code: 76502
Country: USA
Distribution Media
Distribution_Media: Online
Fees: No fees
Personnel
JORGE A. DELGADO
Role: TECHNICAL CONTACT
Phone: 970‐492‐7260
Email: jorge.delgado at ars.usda.gov
Contact Address:
Natural Resources Research Center
Building D
City: Fort Collins
Province or State: CO
Postal Code: 80526-8119
Country: USA

TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Publications/References
De Paz, J.M., J.A. Delgado, C. Ramos, M. J. Shaffer, and K. K. Barbarick. (2009), Use of a new Nitrogen Index‐GIS assessment for evaluation of nitrate leaching across a Mediterranean region, J. Hydrol, 365, 183‐194

Delgado, J.A., M. Shaffer, C. Hu, R.S. Lavado, J. Cueto Wong, P. Joosse, X. Li, H. Rimski‐ Korsakov, R. Follett, W. Colon and D. Sotomayor. (2006), A decade of change in nutrient management requires a new tool: A New Nitrogen Index., J. Soil Water Conserv, 61, 62A‐71A

Delgado, J.A., M. Shaffer, C. Hu, R. Lavado, J. Cueto Wong, P. Joosse, D.Sotomayor, W. Colon, R. Follett, S. Del Grosso X. Li, and H. Rimski‐Korsakov (2008), An index approach to assess nitrogen losses to the environment, Ecol. Eng, 32, 108‐120
Creation and Review Dates
SERF Creation Date: 2011-05-12
SERF Last Revision Date: 2012-04-24
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