Nitrogen Decision Aid
The Nitrogen Decision Aid is a computerized program that predicts the amount of N mineralized from planting to side-dress or 5-leaf growth-stage. By applying just enough N-fertilizer to reach the critical soil nitrate concentration it is possible reduce this waste. This model is designed for Northern climates that will have some frost in the soil during the winter.
Each Year more than 10 billion kg of nitrogen fertilizer are applied to croplands in the United States at a cost of more that $3.5 billion (USDA Economics and Statistics System, 1998). It is estimated that the efficiency of this applied nitrogen (N) ranges from about 30% to about 70% (Pilbeam, 1998); thus, large amounts of fertilizer N are lost or wasted each year.
The Nitrogen Decision Aid is a computerized program that predicts the amount of N mineralized from planting to side-dress or 5-leaf growth-stage. By applying just enough N-fertilizer to reach the critical soil nitrate concentration it is possible reduce this waste. This model is designed for Northern climates that will have some frost in the soil during the winter.
Resources in this dataset:
Resource Title: Nitrogen Decision Aid.
File Name: Web Page, url: https://www.ars.usda.gov/research/software/download/?softwareid=85&modecode=50-60-05-00
download page
Funding
Agricultural Research Service
History
Data contact name
Archer, DavidData contact email
David.Archer@usda.govPublisher
United States Department of AgricultureUse limitations
The resulting output from the Nitrogen Decision Aid should be used as a guide to assist the user in making Nitrogen Management decisions. The USDA - ARS is not liable for any damages resulting from the use or misuse of the Nitrogen Model, its output and its accompanying documentation.Temporal Extent Start Date
1998-01-01Theme
- Not specified
Geographic Coverage
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- environment
- farming
National Agricultural Library Thesaurus terms
computer software; models; planting; nitrogen fertilizers; soil; nitrates; wastes; climate; frost; winter; cropland; economics; statistics; fertilizer ratesOMB Bureau Code
- 005:18 - Agricultural Research Service
OMB Program Code
- 005:040 - National Research
Pending citation
- No
Public Access Level
- Public
