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Title: THE VALUE OF ADDITIONAL DATA TO LOCATE POTENTIAL MANAGEMENT ZONES IN COMMERCIAL CORN FIELDS UNDER CENTER PIVOT IRRIGATION

Author
item HEERMANN, DALE
item DIKER, KENAN
item BUCHLEITER, GERALD
item BRODAHL, MARY

Submitted to: European Conference on Precision Agriculture Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 11/1/2002
Publication Date: 6/19/2003
Citation: HEERMANN, D.F., DIKER, K., BUCHLEITER, G.W., BRODAHL, M.K. THE VALUE OF ADDITIONAL DATA TO LOCATE POTENTIAL MANAGEMENT ZONES IN COMMERCIAL CORN FIELDS UNDER CENTER PIVOT IRRIGATION. EUROPEAN CONFERENCE ON PRECISION AGRICULTURE PROCEEDINGS. 2003.

Interpretive Summary: The identification of management zones and writing management prescriptions is a major question facing producers to implement precision farming. How much and what kind of data are required is the question of most producers. The exploration of temporal frequency analysis of yield data that can be easily understood by the producer is the focus of this paper. Results showed that the two-state frequency analysis required at least two years of data while similar zones were created by one year data in three state frequency analysis. We believe this would be an important information for farmers, consultants who want to implement precision agriculture.

Technical Abstract: The identification of management zones and writing management prescriptions is a major question facing producers to implement precision farming. How much and what kind of data are required is the question of most producers. The exploration of temporal frequency analysis of yield data that can be easily understood by the producer is the focus of this paper. The frequency of high and low yield was combined to estimate the yield response zones. Results showed that the two-state frequency analysis required at least two years of data. The use of a three-state model for analysis of one years data provided an estimate of 25% and 15% and the two-state model with five years of data estimated 39% and 15% to be in the high and low response zones, respectively.