ECONOMIC AND ENVIRONMENTAL BENEFITS OF VARIABLE RATE APPLICATION OF NITROGEN TO CORN FIELDS: ROLE OF VARIABILITY AND WEATHER

The use of meta-response functions based on EPIC-generated data resulted in comparisons between variable (VRAT) and uniform rate application technologies for 36 simulated fields. VRAT was more profitable and less nitrogen was lost to the environment in most cases. When spatial variability was small, uniform rate application techniques were adopted. However, when nitrogen use is restricted, VRAT is used on all simulated fields.


Issue Date:
1999
Publication Type:
Conference Paper/ Presentation
PURL Identifier:
http://purl.umn.edu/21533
Total Pages:
17
Series Statement:
Selected Paper




 Record created 2017-04-01, last modified 2017-08-24

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