Irrigation Control Articles

  • Delta Drainage and Irrigation System - Case Study

    Background Delta, British Columbia is located in the Fraser River delta on the shores of the Pacific Ocean, just south of the City of Vancouver. Delta comprises mostly agricultural land, with typical ground elevations near sea level. Levees protect the area from potential floods from the Fraser River and tidal surges from the Pacific Ocean. Of the 13,500 hectares (ha) watershed, ...


    By XP Solutions

  • GoRoSoBo: an overall control diagram to improve the efficiency of water transport systems in real time

    Agriculture plays an important part in the food chain and water resources for agriculture are essential. A problem is that the water transport systems present low efficiencies in practice. Crop yields must be optimized, and the goal of an operational water manager is to deliver water to irrigation sites accurately and efficiently. In order to fulfill this objective, we propose a centralized ...


    By IWA Publishing

  • CSE algorithm: ‘canal survey estimation’ to evaluate the flow rate extractions and hydraulic state in irrigation canals

    One of the main problems in water management of irrigation systems is the control of the equitable distribution of water among different orifice offtakes. The difficulty of managing a canal is partly caused by the lack of knowledge of the canal state because the scheduled demand is often not fulfilled, since farmers extract more water than is scheduled and it is impossible for the watermaster ...


    By IWA Publishing

  • Procedure for rapid determination of δ15N and δ18O values of nitrate: development and application to an irrigated rice paddy watershed

    The dual isotope approach using the stable isotope ratios of nitrate nitrogen (δ15NNO3) and oxygen (δ18ONO3) is a strong tool for identifying the history of nitrate in various environments. Basically, a rapid procedure for determining δ15NNO3 and δ18ONO3 values is required to analyze many more samples quickly and thus save ...


    By IWA Publishing

  • Why Drip Irrigation Design is Crucial to Your Success

    Drip irrigation is one of the most cost-effective and efficient watering methods in agriculture. It has become incredibly popular in the past 50-years and has been widely adopted by agriculturalists in dozens of countries throughout the world. In simple term, drip irrigation works by sending water through plastic pipes into drip emitters. These emitters are specifically designed to release water ...


    By KIM

  • PVC pipe fitting mold, collapsible PVC fitting mold, irrigation fitting mold

    PVC pipe fitting mould PVC pipe fitting Mould ( for high pressure and low pressure = for water supplying and water discharging)  1. CPVC pipe fitting mould for high pressure.  2. UPVC pipe fitting ...


    By Focare Mould Co.,Ltd.

  • Colorado Irrigation Canal Channels - Case Study

    Project Background “Different materials to protect canal liners had been tried in irrigation canals across the West over the past 15 or 20 years.   One typical method uses a low cost earthen material like clay. Over time, however, these systems begin to crack and start to leak.  It’s not a very efficient way to convey water,” notes Joe Kaul, Kaul ...


    By Presto Geosystems

  • Case study: How benefitial are Wireless Control Systems today ?

    In the area of industrial and commercial automation (control and monitoring) you would normally use a cable to connect electrical devices. Often the operating device is at a different location from where the switching decision is made and this could be a challenge! For example to operate an irrigation pump far away from ...


    By QTech Data Systems (NZ)

  • Singer's algorithm controls farm irrigation case study

    Their Challenge On the San Xavier Reservation near Tucson, Arizona, the Tohono O’odom Nation grows organic alfalfa for racing horses plus fruits and vegetables. Thanks to Singer Valve, San Xavier is home to a sophisticated flood irrigation system that consists of one 16” (400 mm) globe style and eight 16” angle style valves and five storage tanks each with its own ...


    By Singer Valve Inc.

  • A computer model to estimate seepage rates from automated irrigation distribution channels during periods of shutdown

    Within the last 10 years throughout south-eastern Australia, there has been a rapid expansion of modernisation efforts by irrigation companies that has included installation of automatic control structures, the so-called total channel control (TCC) technology. TCC includes supervisory control and data acquisition technology, which results in production of integrated databases utilising real time ...


    By IWA Publishing

  • Experimental comparison of canal models for control purposes using simulation and laboratory experiments

    Considerable amounts of water can be saved by automating irrigation canals. The design of most of the practical automatic controllers rely on a simplified model of the irrigation canal. This model can be obtained from measured data (identification) or can be formulated (white box models) assuming simplifications in the physical concepts and using the canal geometry. Several models of this kind ...


    By IWA Publishing

  • Water justice: exploring the social dimensions of new irrigation technologies in northern Victoria, Australia

    Water resource management is one of the most pressing human and environmental challenges of the 21st century. Technological approaches to improving the management of water feature prominently, with technology positioned as the solution to issues of competing interests and the achievement of water savings. This paper analyses the social dimensions of a regional-level irrigation technology, ...


    By IWA Publishing

  • Irrigation by Sewage Effluents in Yemen

    Yemen is the least advanced country among Middle East Countries in the sewage reuse and safety control. The current sewage effluent quality in Yemen is generally poor as none of the existing sewage treatment plants produces effluents comply with the effluent quality regulations. The oxidation and stabilization ponds are considered the most appropriate for the warm climate conditions in the ...


    By IWA Publishing

  • Lindsay Irrigation advances VFD Pump Control case Study

    Put more"UMP" in your pump with VFD control Like most farmers, third-generation Nebraska corn grower Brian Wall is constantly looking for ways to make his farming operation more efficient and profitable. One of the ways he is doing that is by using variable frequency drive (VFD) control technology. Wall recently installed a Lindsay Watertronics VFD control panel on his 100 horsepower irrigation ...


    By Lindsay Corporation

  • Effects of treated municipal wastewater on fluctuation trend of leaf area index and quality of maize (Zea mays)

    The effect of primary-treated municipal wastewater (TMWW) on the leaf area index (LAI) and quality of maize (Zea mays) was studied in comparison to the clean irrigation water (control). The experiment was based on a randomized block design with four replicates, and it was conducted in a field experiment in Aligoudarz (Iran). Irrigation was applied with five different methods as treatments: ...


    By IWA Publishing

  • Stealth reuse Ocala`s airport solution

    Abstract In 1996, the City of Ocala constructed a subsurface reuse irrigation project in the clear zone at the local airport. This site is the first reuse project permitted on an airport property by FAA in the southeast in over 20 years. The site is a key element in Ocala’s reuse system, which was recently named the MOST INNOVATIVE AND EFFECTIVE REUSE SYSTEM in EPA Region 4. The ...


    By Geoflow, Inc.

  • Crops flourish with Scalewatcher

    Water is an essential component of horticulture and agriculture whether it is used for irrigating field-scale vegetables, nursery stock, flowers or fruit.  Where water contains high degrees of calcium, magnesium and sodium, it can cause nutrient deficiency in plants and crops resulting in stunted growth and poor yields. Calcium also blocks irrigation systems and boilers in heated ...

  • Novel simulation-based algorithms for optimal open-loop and closed-loop scheduling of deficit irrigation systems

    The scarcity of water compared with the abundance of land constitutes the main drawback within agricultural production. Besides the improvement of irrigation techniques a task of primary importance is solving the problem of intra-seasonal irrigation scheduling under limited seasonal water supply. An efficient scheduling algorithm has to take into account the crops' response to water stress at ...


    By IWA Publishing

  • Lg Sonic Ultrasonic Algae and biofilm control for irrigation case study

    Water used for irrigation can contain high levels of nutrients, some of these nutrients are beneficial for the plants watered, but can also lead to extensive algal growth. Algae in irrigation tanks can clog the irrigation system and can also be spread over the irrigated area. In addition, some types of fungus, also present in these waters, can be harmful for the plants grown. Therefore the ...


    By LG Sonic

  • LG Sound, controlling algae in irrigation reservoirs

    Algae growth in irrigation water can cause a serious problem. Algae in irrigation tanks can clog the entire irrigation system, such as the pumps, filters, drip-installation and sprinkler nozzles. Besides that the algae and their by-products can also be spread over the irrigated area. In addition, some types of fungi, also present in these waters, can be harmful for the plants grown. Typical ...


    By LG Sonic

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