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DEVELOPMENT OF A PROCESS USING PRECISION AGRICULTURE TECHNIQUES FOR SIMULTANEOUS APPLICATION OF FERTILIZER IN VARIABLE RATE SYSTEM

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2015 ASABE Annual International Meeting  152187156.(doi:10.13031/aim.20152187156)
Authors:   Carlos Eduardo Silva Volpato, Murilo Machado De Barros, Fabio Moreira Da Silva
Keywords:   agricultural machinery, application equipment, fertilizer distributors, precision agriculture, accuracy.

Abstract.

The objective of this study was to evaluate a control system for variable rate fertilizers distribution, for coffee, simultaneously applying two products. Two types of tests were performed: transversal deposition with tarps, for quantifying the variations between planned and applied doses, by Completely Randomized Design (CRD), in a factorial scheme; was used the Scott-Knott test at P < 0.05. The longitudinal deposition test determined the distribution characteristics of the equipment along the displacement line analyzed by the values relative frequency; other factor analyzed was the behavior of the application rates on both sides of the distribution system by CRD and Scott-Knott test at P < 0.05. It was observed that the application range in the transversal deposition test with tarps was 1.59%. The variable rate distribution system not changed in relative to the longitudinal deposition independent of any interaction. Thus, to the methodology used was possible to evaluate and validate the use of the control system for the crop studied.

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