irrigation data Articles

  • Method for irrigation scheduling based on soil moisture data acquisition

    The water requirements of crops are dependent on evapotranspiration (ET), soil chemistry, and the crop’s maximum allowable depletion (MAD). Direct measurements of root zone soil moisture, water application along with published ET values and soil textures, can be used in a soil water balance model that can significantly optimize irrigation efficiency. Over the past five years, advancements in ...

  • Implementing participatory irrigation management in Thailand

    Participatory Irrigation Management (PIM) was formally adopted in Thailand in 2004. The involvement of farmers in water management decision making is necessary to meet the implementation challenges of this initiative. As such, the research presented in this paper considered the level of farmer involvement in water management and decision making, and the lessons learned by both government ...


    By IWA Publishing

  • Monitoring Water Resources Beyond Irrigation

    Over the past year, California’s governor has taken unprecedented action, requiring Californians to drastically cut potable urban water use. While the restrictions may seem harsh to some, it actually provides an opportunity for building managers and community association boards to implement an effective long-term water conservation program. And the result can be significant dollar savings. ...


    By WaterSignal

  • Group method of data handling (GMDH) in modelling of growth dynamics of trees irrigated with wastewater

    This paper describes the formulation and analysis of growth dynamics models for trees irrigated with wastewater. The models can be used to obtain the characteristics of a species, depending on treatment conditions and climate factors, at all stages of growth. The experiments were carried out at the University of Patras to identify the characteristics (height rate and mortality) of the forest tree ...


    By Inderscience Publishers

  • Group method of data handling (GMDH) application for modelling of mechanical properties of trees irrigated with wastewater

    Experiments have been carried out to identify the mechanical properties of trees irrigated with wastewater, as well as mathematical modelling of measurement results via the group method of data handling (GMDH) method. Eucalyptus trees were cultivated and irrigated with processed wastewater from a treatment plant. Characteristics of wood quality (axial compression and bending, etc.) were measured ...


    By Inderscience Publishers

  • Tips And Vital Points For Solar Irrigation Projects

    The Article highlights important points that should be taken care of from planning to commissioning of a solar powered irrigation project. For example: points to consider during sizing of the project; defining the objectives of the project; study of the project site with respect to the historical site solar data and climate data. There are points to consider during installation of the project, ...


    By Bati Energy Private Limited

  • Flow monitoring for golf course irrigation case study

    “We are all talking about the price of oil, but it's water we'll be fighting for in the future” Summerheights Golf Links in Cornwall, Ontario draws irrigation water from the South Raisin River. Flow rates in the river can become very low during dry periods so water extraction is regulated and monitored closely. Under a water extraction permit issued by the Ministry of The ...


    By Greyline Instruments Inc.

  • India's groundwater irrigation boom: can it be sustained?

    Development of groundwater irrigation (GWI) has been very impressive in India, especially after the introduction of the green revolution. The area under GWI accounts for 62% of the net irrigated area today. Though GWI provides added benefits to farmers, compared to other sources of irrigation, the continuous exploitation of groundwater of late has resulted in a drastic drop in the water table, ...


    By IWA Publishing

  • Modelling regional general equilibrium effects and irrigation in Canterbury

    We describe the development of a regional computable general equilibrium (CGE) model for the analysis of issues concerning water supply and (re)allocation in Canterbury, New Zealand. Traditionally, water has been seen as an abundant resource, but growing irrigation demands are now outstripping the supply of water and competing with in-stream uses and non-use values. In the longer term, this ...


    By IWA Publishing

  • Dynamics of irrigation management and interlinked agrarian relations: empirical findings from a canal irrigation command in Odisha, India

    The literature on the dynamics of irrigation management, in terms of the analysis of interlinked agrarian relations, is very limited. This paper attempts to get a detailed grassroots view of farmers' knowledge of various issues pertaining to the relationship between agrarian structure, land and water. Data from 200 sample cultivators of different farm sizes and 20 landless labour ...


    By IWA Publishing

  • Corn cob characteristics in irrigated central great plains studies

    Escalating fossil fuel cost and concern over global climate change have accelerated interest in cellulosic feedstocks, such as corn (Zea mays L.) cobs, for liquid fuel production. Little information is available about this plant organ. We compiled and summarized available cob data from several recent field studies in the Central Great Plains. Data were collected from two locations in Colorado and ...

  • The importance of irrigation water rights: lessons from South Africa and Tunisia

    With increasing water scarcity, research on policy options for improved water allocation and governance has become an urgent priority for many developing and developed countries. More and more, the focus is placed on institutional reforms but evaluating institutional alternatives is a challenging task. This paper takes a comparative approach and confronts case study data from Tunisia and South ...


    By IWA Publishing

  • Impact of irrigation water scarcity on rural household food security and income in Pakistan

    As Pakistan is currently facing a severe shortage of irrigation water, this paper analyzes the determinants of water scarcity and its impact on the yield of cereal crops (wheat, maize and rice), household income, food security and poverty levels by employing the propensity-score-matching approach. This study is based on a comprehensive set of cross-sectional data collected from 950 farmers ...


    By IWA Publishing

  • Transferring irrigation management to farmer's associations: Evidence from the Philippines

    Irrigation management transfer (IMT) is an important strategy among donors and governments that aims to strengthen farmer control over water and irrigation infrastructure. In this study, we use data from a survey of 68 irrigator associations (IAs) and 1020 farm households in the Philippines to examine the impact of IMT on irrigation association performance and on rice yields. We find that the ...


    By IWA Publishing

  • AquaCrop model simulation under different irrigation water and nitrogen strategies

    On a global scale, irrigated agriculture consumes about 72% of available freshwater resources. Deficit irrigation can be applied in the field to save irrigation water and still lead to acceptable crop production. The AquaCrop model is a simulation model for management of irrigation and nitrogen fertilizer. This model is a new model that is accurate, robust and requires fewer data inputs ...


    By IWA Publishing

  • Greyline TTFM 1.0 flow meter for Golf course irrigation - Case Study

    Summerheights Golf Links in Cornwall, Ontario draws irrigation water from the South Raisin River. Flow rates in the river can become very low during dry periods so water extraction is regulated and monitored closely. Flowmeter is equipped with an optional 2-million point data logger which stores daily total, minimum and maximum flow rates. Rory MacLennan plugs a USB memory stick into the ...


    By Greyline Instruments Inc.

  • Assessing selenium contamination in the irrigated stream–aquifer system of the Arkansas river, Colorado

    Received for publication December 4, 2008. Prudent interventions for reducing selenium (Se) in groundwater and streams within an irrigated river valley must be guided by a sound understanding of current field conditions. An emerging picture of the nature of Se contamination within the Lower Arkansas River Valley in Colorado is provided by data from a large number of groundwater and surface water ...

  • Irrigation demand modelling using the UKCP09 weather generator: lessons learned

    The determination of irrigation demand is typically based on crop modelling using a long historic record of local daily weather data. However, there are rarely adequate weather station records near to given sites; often any local records cover a limited number of years, are incomplete, costly or are of poor quality. This paper examines whether version 1 of the UKCP09 weather generator can ...


    By IWA Publishing

  • Seasonal ammonia losses from spray-irrigation with secondary-treated recycled water

    This work examines ammonia volatilization associated with agricultural irrigation employing recycled water. Effluent from a secondary wastewater treatment plant was applied using a center pivot irrigation system on a 12 ha agricultural site in Palmdale, California. Irrigation water was captured in shallow pans and ammonia concentrations were quantified in four seasonal events. The average ammonia ...


    By IWA Publishing

  • Large-scale irrigation - Understanding energy-water-food connections

    Original story at MIT News An MIT team is providing new understanding of the growing interconnections among three critical resources: energy, water and food. The work focuses on Pakistan's Indus Basin, where irrigation water is increasingly pumped from underground, a practice that is intensifying a preexisting shortage of energy. Using new and ...

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