LOW-COST AUTOMATION OF FERTIGATION WITH PROGRAMMABLE LOGIC CONTROLLER AND GAS-FILLED SENSORS

被引：0

作者：

Bezerra, Ricardo de S. ^{[1
]}

Evangelista, Adao W. P. ^{[1
]}

Vellame, Lucas M. ^{[2
]}

Alves Junior, Jose ^{[1
]}

Casaroli, Derblai ^{[1
]}

机构：

[1] Univ Fed Goias, Goias, Go, Brazil

[2] Univ Fed Reconcavo Bahia, Cruz Das Almas, BA, Brazil

来源：

ENGENHARIA AGRICOLA | 2017年 / 37卷 / 02期

关键词：

water management; microcontroller; matrix potential; MANAGEMENT;

D O I：

10.1590/1809-4430-Eng.Agric.v37n2p394-402/2017

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The aim of this study was to develop and evaluate a low-cost automation system for management of different fertigation regimes in tomato plants (Solanum lycopersicum L.) grown in a protected environment. The system consisted of an irrigation controller coupled to substrate moisture sensors and to a programmable logic controller (PLC). Four water regimes and nutrient supply levels were considered during evaluations. While developing, functional tests were performed to the automation system. Moreover, a cost-benefit analysis for the assembling of the system was carried out. As result, we noted that the automation system was efficient for controlling fertigation. It showed no problems regarding malfunction, still presenting a lower cost if compared to commercial controllers.

引用

页码：394 / 402

页数：9

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