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Tecnología y ciencias del agua

versão On-line ISSN 2007-2422

Resumo

LEON-MOSTACERO, José Andrés et al. Development of a precision irrigation system on central pivot team. Tecnol. cienc. agua [online]. 2017, vol.8, n.4, pp.101-116. ISSN 2007-2422.  http://dx.doi.org/10.24850/j-tyca-2017-04-06.

This research was conducted in the central pivot of the Colegio de Postgraduados, Mexico, Montecillo campus from 2011 to 2012. The objective was to design, build and evaluate a precision irrigation system operating on a central pivot. The methodology was quartered 1) development of electromechanical component, based on the location of the system, cabling and installation of valves; 2) electronic component, with the development of two tablets, GPS integration and communication with the computer; 3) software based on the comparison of the data obtained by the GPS with a map set zones “homogeneous” for irrigation, and 4) evaluation of the system by comparing the amount of water applied (ordered by the program) and the water collected at ground level. Among the results was a) the precision irrigation system in the central pivot, which allows the operation of valves according to position; b) development of a precision irrigation software open and adaptable to any equipment bearing circular (central pivot) at any location on earth, by any standard programming or cultivation soil variability; c) evaluation of the precision was found to allow a saving irrigation of water 39.09% compared to uniform application achieved with the use of a conventional irrigation pivot and variation between the applied and collected sheet of 8.41% was attributed to wind and delay in valve actuation operating conditions under study.

Palavras-chave : Precision irrigation; variable rate irrigation; automation of irrigation; differential irrigation; real time irrigation.

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