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Title: Drip Irrigation using a PLC based Adaptive Irrigation System
Authors: Shahidian, shakib
Serralheiro, Ricardo
Teixeira, José Luís
Santos, Francisco
Oliveira, Mario do Rosário
Costa, José
Toureiro, Célia
Haie, Naim
Machado, Rui
Keywords: Controlador de rega
Issue Date: Feb-2009
Publisher: WSEAS
Abstract: Irrigation is presently the main user of world´s fresh water. Most of it goes to irrigating small plots where it is not feasible to implement full-scale Evapotranspiration based irrigation controllers. The dramatic development of Programmable Logic Controllers, PLCs, and their rather affordable price has made it possible to use them as stand-alone irrigation controllers. In this paper a PLC is used to adapt the daily irrigation amount to actual ETc, using a Hargreaves-Samani type equation. Once the ETc is calculated, then the PLC manages the irrigation according to the specifications given by the farmer. First year results indicate an 8% saving in irrigation water.
Type: article
Appears in Collections:ERU - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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