Canopy Reflectance Estimation of Wheat Nitrogen Content for Grain Protein Management

Authors

Dennis L. Wright, Utah State University
V. Philip Rasmussen, Utah State University
R. Douglas Ramsey, Utah State UniversityFollow
Doran J. Baker, Utah State University
Jason W. Ellsworth, University of Idaho

Document Type

Article

Journal/Book Title/Conference

GIScience & Remote Sensing

Volume

41

Issue

4

Publisher

Taylor & Francis

Publication Date

5-15-2013

First Page

287

Last Page

300

Abstract

The objective of this study is to evaluate remote sensing as a tool for measuring wheat nitrogen (N) content and then demonstrate how that information may be used by crop managers to improve grain protein content. Remote sensing data from aerial and satellite platforms were collected and compared with flag leaf N concentrations. Flag leaf N was significantly correlated with reflectance (r² = 0.52-0.80) during 2002 and 2003. A mid-season application of N increased grain protein in every treatment, but most significantly in the N-stressed treatments. Using remote sensing as a tool, wheat growers can estimate N stress and make decisions about protein management.

Recommended Citation

Wright, Dennis L.; Rasmussen, V. Philip; Ramsey, R. Douglas; Baker, Doran J.; and Ellsworth, Jason W., "Canopy Reflectance Estimation of Wheat Nitrogen Content for Grain Protein Management" (2013). Wildland Resources Faculty Publications. Paper 3218.
https://digitalcommons.usu.edu/wild_facpub/3218