Optimum N management using site-specific management zones

R. Khosla; D. Inman; D.G. Westfall

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Optimum N management using site-specific management zones

In: Precision Agriculture â05

Authors:

R. Khosla

R. Khosla rkhosla@colostate.edu

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D. Inman

D. Inman
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D.G. Westfall

D.G. Westfall
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Type:: Chapter

Pages:: 827â834

DOI:: https://doi.org/10.3920/978-90-8686-549-9_101

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Utilizing management zones for variable rate fertilizer application has not been thoroughly evaluated. The objectives of this study were (1) to determine if grain yield response to applied N is significantly different across management zones, (2) to determine if grain yield is significantly different across management zones, and (3) to assess the accuracy of site-specific management zones in characterizing grain yield classes. Fields were classified into three management zones. Grain yield response and grain yield were significantly different across management zones. Management zones had an overall area association of 42% with corresponding yield classes, as determined by an error matrix. Management zones consistently and accurately characterized differences in yield and N response across site years.

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Precision Agriculture â05

E-Book ISBN:: 9789086865499

Publisher:: Wageningen Academic

Print Publication Date:: 24 Oct 2005

Subjects
- Life Sciences
  - General
  - Agriculture & Environment

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Optimum N management using site-specific management zones

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Precision Agriculture â05

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Precision Agriculture â05