Irrigation Control Articles

  • 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

  • Factors affecting adoption of agricultural water-saving technologies in Heilongjiang Province, China

    This study aimed to find key factors influencing the decisions of farmers regarding the adoption of water-saving practices including the rice-controlling irrigation technique, drip irrigation under plastic film, and sprinkling irrigation in Heilongjiang Province, China. It was found that reliability of the water source and government promotion had very significant and positive associations with ...


    By IWA Publishing

  • 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

  • Numerical simulation of bare soil water and heat flow under an automated irrigation system

    Modern irrigation techniques use automated systems where irrigation schedules are controlled according to certain criteria. The objective of this study is to numerically estimate irrigation events, water content and temperature distributions, evaporation, drainage, and soil water under closed loop automated irrigation systems of a bare soil. The automated irrigation system is activated and ...


    By IWA Publishing

  • 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

  • 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

  • Pump Stations: CSV vs VFD case study

    None of the problems associated with VFD exist when using a Cycle Stop Valve for control. With a CSV, the motor is always spinning at full RPM, but the amps are reduced similarly to varying the speed. When the motor is spinning at full speed, the cooling fan always provides adequate cooling. Spinning at full speed also means there are no problems with resonance frequency vibrations. Running on ...


    By Cycle Stop Valves, Inc.

  • Kentucky - Golf Homes Development case study

    Site: County Club Golf Homes Location: Elizabethtown Kentucky The Country Club Golf Homes (CCGH) located in Elizabethtown, Kentucky is a shining example of how technology, engineering, and land development can come together to make unsuitable land suitable for onsite wastewater dispersal. In late 2001, the CCGH developers required ...


    By Quanics Incorporated

  • 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

  • Wireless Greenhouse Monitoring and Control

    CAS DataLoggers Provides the Intelligent Automated Solution A fruit crop experiment station needed to remotely monitor and control its climate systems in a number of greenhouses.  The proposed system needed to monitor soil moisture content and temperature and actively control irrigation and airflow by opening and closing windows to ensure that the appropriate temperature was ...


    By CAS DATALOGGERS

  • 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.

  • Scalewatcher Banishes Limescale In Gardens And Greenhouses

    In hard water areas, automated watering systems, sprinkler irrigation systems and greenhouse-misting systems clog with limescale, plant leaves develop white scale deposits and over-spray causes limescale build-up on greenhouse windows. Scalewatcher North America, manufacturers of the original, patented and award-winning computerized electronic water-conditioner, Scalewatcher®, has a range of ...

  • 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

  • Algae control in irrigation case study

    Reduction of aerobic bacteria and algae in irrigation reservoir Analyzed parameters After finalizing the test the following was observed: strong reduction in algae and aerobic bacteria concentration. This lower amount in micro-organism concentration, in the water leads to lower biochemical oxygen demand (BOD). This subsequently leads to the improvement of the quality of the ...


    By LG Sonic

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you