Nitrogen Recommendation Recalibrations for Wheat in North Dakota

A multiple year research study updating N response and recommendations for wheat in various agro-ecological areas of North Dakota.

IPNI-2007-USA-ND15

Enhance and complete a modern data set for the N response of spring wheat. Investigate the use of organic matter levels or the Illinois Soil Nitrogen Test (ISNT) as a modifier to our N recommendation formula. Investigate within-state regionalization of N recommendations due to climatic influences on soil organic matter levels, soil organic matter quality, and mineralization potential. Read more


Year of initiation:2007
Year of completion:2009
Map:

Interpretive Summary

2009

Nitrogen Recommendation Recalibrations for Wheat in North Dakota, 2009 The objective of this project was to review current N recommendations for wheat to determine profitable N recommendations for spring wheat and durum in North Dakota. Over 100 site-years of data were collected during this project from archived studies and recent N-rate studies. Soil test nitrate improved the relationship between available N and yield.

2008

Nitrogen Recommendation Recalibrations for Wheat in North Dakota, 2008 The current N recommendations for spring wheat in North Dakota (2. 5 X Yield Potential less credits) were developed more than 30 years ago when there was no ability to vary rates within a field and N prices were less than 10 cents/lb of N.


Updates & Reports

2009

2009 Annual Report

2007

Objectives

2007

Methodology

2007

Justification

2007

Project Description


Project Leader

David Franzen, North Dakota State University


Project Cooperators

None


IPNI Staff

T. Jensen


Location

Americas \ Northern America \ USA \ North Dakota


Topics

4r rate, 4r source, 4r time, nutrient management

wheat

Nitrogen (N)