scholarly journals An Automatic Irrigation Control System for Soilless Culture of Lettuce

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1692 ◽  
Author(s):  
Zhigang Liu ◽  
Qinchao Xu
Keyword(s):  
Control System ◽  
Root Zone ◽  
Low Cost ◽  
Manual Control ◽  
Growth Stages ◽  
Irrigation Strategy ◽  
Irrigation Water Use ◽  
Irrigation Control ◽  
Intelligent Irrigation ◽  
Control Irrigation

To achieve precise measurement of moisture content in the substrate and intelligent water-saving irrigation, a simple and low cost automatic irrigation control system based on ZigBee wireless network has been developed. A software with irrigation strategy was proposed based on the models of substrate wetting pattern, lettuce root zone and the evapotranspiration. The system could detect substrate moisture in real-time and irrigate automatically according to the threshold of substrate and the irrigation strategy. The average fresh weight per plant under intelligent irrigation are 16.60% and 11.37% higher than manual control irrigation at least in different growth stages in spring and summer, the average drainage rate of intelligent irrigation is 16.08% and 17.06% smaller than manual control irrigation in spring and summer, and the irrigation water use efficiency of intelligent irrigation is 68.03% and 98.61% higher than manual control irrigation in spring and summer. The results show that the system is a promising tool for scientific and rational irrigation decision.

scholarly journals Low Cost Design of Automated Drip Irrigation System with GSM

2019 ◽  
Vol 8 (4) ◽  
pp. 8077-8082
Keyword(s):  
Control System ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Low Cost ◽  
Cost Effective ◽  
Effective Control ◽  
Irrigation Technology ◽  
Flow Through ◽  
Irrigation Control ◽  
Fail Safe

This paper is about an automatic irrigation control system which is cost effective and can be used for irrigation by a farmer. Today’s industrial automation and controlling of machine is high in cost and not suitable for a farming field. So, here we design a smart drip irrigation technology with effective control system in low cost. The voltage monitoring unit informs the farmer about the power supply conditions on the field. The aim of this study, is to control the motor automatically, and decide the direction of the water flow through valves, based on the inputs from the farmer and also with the collective inputs from the sensors, which finally notify instantly about the happenings and conditions of the field. It operates under low hardware cost by distributing irrigation to crops by elevation change and gravity. The soil moisture and amount of flow of water in each sector are major consideration to design a fail-safe system for a variety of crops planted at a time.

scholarly journals Automated Irrigation Based on Soil Moisture Tension Reduces Run-off and Increases Productivity and Quality of Greenhouse-grown Cut Flower Roses

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 533B-533
Author(s):  
Lorence R. Oki ◽  
J. Heinrich Lieth
Keyword(s):  
Soil Moisture ◽  
Control System ◽  
Root Zone ◽  
Stem Length ◽  
Cut Flower ◽  
Specific Level ◽  
Moisture Condition ◽  
Pressure Transducers ◽  
Potted Plants ◽  
Irrigation Control

Conventional irrigation practices of cut-fl ower greenhouse crops may result in application of excess water, resulting in runoff which may pollute the environment and contaminate drinking water supplies. A computerized irrigation control system based on soil moisture tension, originally designed for potted plants, was adapted for use in cut flower production. Tensiometers equipped with a high-fl ow ceramic tip and pressure transducers were effective in monitoring the soil moisture in the root zone of plants grown in ground beds and responded to rapid changes in soil moisture. The irrigation control system using these sensors, a computer, and custom-written software continuously monitored the moisture condition of the soil, initiated irrigation when the soil dried to a specific level, and turned off the water when an adequate amount was applied. When the system was installed in a greenhouse producing roses, water use decreased while productivity (stems harvested/m2) and stem length increased substantially. The observed increases in productivity and quality can result in significant increases in profitability for commercial rose producers.

Research and Design of Intelligent Irrigation Control System Based on Fuzzy

2021 ◽  
Author(s):  
Liu Sijia ◽  
Hu Wenwen ◽  
Xu Shipu ◽  
Wu Yingjing ◽  
Liu Yong ◽  
...  
Keyword(s):  
Control System ◽  
Irrigation Control ◽  
Intelligent Irrigation ◽  
Research And Design

Automatic Irrigation Control System for Soilless Culture Based on Feedback from Drainage Hydrograph

2017 ◽  
Vol 33 (4) ◽  
pp. 531-542 ◽  
Author(s):  
Daniel Rodríguez ◽  
Juan Reca ◽  
Juan Martínez ◽  
Miguel Urrestarazu
Keyword(s):  
Control System ◽  
Low Cost ◽  
Irrigation Management ◽  
Irrigation Scheduling ◽  
Soilless Culture ◽  
Proportional Integral Derivative ◽  
Tomato Crop ◽  
Proportional Integral ◽  
Irrigation Application ◽  
Irrigation Control

Abstract. In a soilless culture, water and nutrients must be frequently and precisely applied due to the reduced volume and low water holding capacity of the substrate. We describe a low-cost and efficient control system for the irrigation management of soilless culture based on an irrigation tray. Both irrigation and drainage volumes from the irrigation control tray are measured automatically. The proposed irrigation scheduling options were based on applying both variable timing and amounts. A Proportional Integral Derivative (PID) algorithm was used to establish the irrigation timing option while two different irrigation application options, based on measurements from the drainage hydrograph, were developed and tested. A field test performed on a tomato crop was carried out to assess the performance of the two irrigation application options. Both irrigation algorithms performed well as they fitted the leaching fraction for every irrigation event to the target value. The fruit yield and quality were comparable to results obtained from the control treatment of the tomato crop. The designed low-cost irrigation control system, if implemented on commercial farms, could prove to be economically very beneficial. Keywords: Automation, Drainage hydrograph, Irrigation control tray, Irrigation scheduling, Proportional-Integral-Derivative (PID) controller, Substrate culture.

Research on Networked Agriculture Greenhouses Irrigation Control System

2010 ◽  
Vol 121-122 ◽  
pp. 787-791
Author(s):  
Fang Ming Tian ◽  
Gui Qing Xi ◽  
Xiao Liang Wang
Keyword(s):  
Control System ◽  
Wireless Network ◽  
Computer Network ◽  
Irrigation System ◽  
Control Technology ◽  
Modern Agriculture ◽  
Modern Computer ◽  
Irrigation Control ◽  
Network Technologies ◽  
Control Irrigation

Greenhouse irrigation control technology is an important content in the research of modern agriculture technologies. The traditional agriculture greenhouse used man-made irrigation approach to add moisture and nutrient to crops, which is difficult to control and easily to cause resource waste. The paper brought out a networked agriculture greenhouse irrigation control based on wireless network, which obtained temperature and humidity information of crops with network sensor and distance control irrigation system with algorithm, so that the automation of supply be achieved. The research fully utilizes modern computer network technologies and improves the accuracy of agriculture greenhouse irrigation control and work.

Design of Water and Fertilizer Measurement and Control System for Seedlings Soil Based on Wireless Sensor Networks

2012 ◽  
Vol 241-244 ◽  
pp. 86-91
Author(s):  
Yong Xian Song ◽  
Juan Li Ma ◽  
Xian Jin Zhang
Keyword(s):  
Control System ◽  
Seedling Growth ◽  
Information Acquisition ◽  
Low Cost ◽  
Growth Potential ◽  
Wireless Sensor ◽  
Growth Stages ◽  
Measurement And Control System ◽  
And Control ◽  
Measurement And Control

Water and fertilizer are two important factors in seedlings growth and development, the reasonable management of water and fertilizer can play a greater growth potential for seedling, and blind management of water and Fertilizer not only is harmful for seedling growth, but also will lead to the water resource waste and environmental pollution. In order to precisely determine the seedlings fertilizer demand, this paper presents a method seedlings fertilizer and water measurement and control system based on wireless sensor network, the system can realize automatic deployment of information acquisition node, data self-organization transfer, namely, wireless communication, and can accurately detect information of soil water and fertilizer and identify water and Fertilizer on the best demand of seedlings growth stages for different seedlings, different regions, different period of climate and seedling growth status, so the best water and fertilizer control is achieved in seedling cultivation. This system were introduced and analyzed from the hardware structure, software structure and so on in this paper, and it has the advantages of low power consumption, low cost, good robustness, flexibility and so on. The experiment results shown that the system is practical and efficient, which can be applied in farmland, and nursery area.

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