irrigation well Articles

  • Arsenic in irrigated paddy soils

    Natural arsenic pollution of drinking water has been reported from over 70 countries world-wide, affecting an estimated 150 million people (Ravenscroft et. al., 2008). About 50 million of these people live in Bangladesh, 30 million in India and 33 million in six other countries of south and south-east Asia. It has recently been recognised that arsenic-contaminated groundwater used for irrigation ...

  • Disposal of De-Icing Effluents By Irrigation

    At Zurich Airport (Switzerland) alcohols, as well as urea in small quantities, are utilized for de-icing in order to maintain the air traffic during winter. To purify the accumulated de-icing effluents a new, groundbreaking, cost-effective (investment and maintenance) method was developed which has been successfully applied since winter 2000/2001. The de-icing effluents are irrigated onto the ...


    By Jungo Engineering

  • Spectral water indices for assessing yield in elite bread wheat genotypes under well-irrigated, water-stressed, and high-temperature conditions

    The objective of the present work was to determine the relationship between spectral reflectance indices (SRI) and yield in spring wheat (Triticum aestivum L.) in NW Mexico in three environments (irrigated, water-stress, and high-temperature). The SRI were classified into vegetative indices (three indices) and water indices (five indices). The SRI were determined at booting, heading, and ...

  • 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

  • A policy option for valuing irrigation water in the dry areas

    Participants at the international conference on policies for water and food security in the dry areas, held in June 2013, agreed that, given the fast pace of depletion of groundwater, the issue of water valuation in the dry areas is no longer one of whether or not, but rather of how. Policies that have been or are perceived to have adverse effects on the cost of agricultural production or food ...


    By IWA Publishing

  • Special features of drip-sprinkler irrigation technology

    Irrigation techniques and technology based on principle of regular accumulation of moisture in active layer (surface irrigation, regular sprinkler irrigation) are most common in science and in practice. More progressive is principle of non-stop water supply of plants and soil in conformity to their water consumption. Drip irrigation and impulse sprinkling are based on this principle. The main ...


    By IWA Publishing

  • Analysis of constructed wetland performance for irrigation reuse

    Most of the wastewater treatment systems in small rural communities of the Cova da Beira region (Portugal) consist of constructed wetlands (CW) with horizontal subsurface flow (HSSF). It is believed that those systems allow the compliance of discharge standards as well as the production of final effluents with suitability for reuse. Results obtained in a nine-month campaign in an HSSF bed pointed ...


    By IWA Publishing

  • Water Quality, Soil and Managing Irrigation of Crops

    The book entitled Water Quality, Soil and Managing Irrigation of Crops comprises three sections, specifically: Reuse Water Quality, Soil and Pollution which comprises five technical chapters, Managing Irrigation of Crops with four, and Examples of Irrigation Systems three technical chapters, all presented by the respective authors in their own fields of expertise. This text should be of interest ...


    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

  • 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.

  • Prospects of desalination for irrigation water in the Sultanate of Oman

    The most limiting factor for the agricultural sector in the Sultanate of Oman is a lack of water, and security of supply in terms of both quantity and quality. Salinization of both soils and groundwater systems along the coastal strip of Al-Batinah has placed a substantial burden on farmers regarding crop selection and, therefore, farm profitability. Desalination of brackish and seawaters ...


    By IWA Publishing

  • Quality of Irrigation Water in Sri Lanka - Status and Trends

    Abstract: Already available and newly collected data sets on water chemistry of twenty reservoirs located in seven river basins in Sri Lanka were analyzed to determine the status and trends in irrigation related water quality characteristics. pH of irrigation water varied within a wide range but the upper limit did not exceed the proposed level suitable for irrigation water. Salinity was found ...


  • Irrigation challenges in the sub-humid US Mid-South

    Irrigated area in the Mid-South USA continues to increase and now totals four million ha. Because of low available water holding capacities and shallow root-limiting layers in many soils, irrigation management is difficult. Water quality and water use efficiency impacts under irrigation are poorly understood, but comprehension is necessary if conversion from groundwater to surface water supplies ...


    By Inderscience Publishers

  • Reuse of constructed wetland effluents for irrigation of energy crops

    The aim of this study was to evaluate biomass production of promising ‘no-food’ energy crops, Vetiveria zizanoides (L.) Nash, Miscanthus × giganteus Greef et Deu. and Arundo donax (L.), irrigated with low quality water at different evapotranspiration restitutions. Two horizontal subsurface flow (H-SSF) constructed ...


    By IWA Publishing

  • 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.

  • 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

  • Can drip irrigation keep the Prairie Profitable?

    The use of flood and center pivot irrigation of crops via the waters of the Ogallala Aquifer is as hot a discussion topic as the current drought. To many who mine the aquifer to make a living, trying to keep a profitable way of life sustainable in a time when the broader public is seeking more conservation of resources yet wanting inexpensive, plentiful and safe food is problematic. Perhaps it's ...


    By Netafim USA

  • 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

  • Suitability Assessment of Groundwater for Irrigation and Drinking Purpose in the Northern region off Jordan

    In the study, groundwater samples were collected from fifty wells in the northern region of Jordan. These samples have been assessed on the basis of various qualitative parameters. The considered water quality parameters are; pH, electrical conductivity, total dissolved salts, calcium and magnesium, sodium, potassium, carbonate, bicarbonate, chloride, sulphate, fluoride, sodium adsorption ratio, ...


  • Promoting irrigation demand management in India: options, linkages and strategy

    Against the backdrop of a discussion on the rationale, logic and scope of irrigation demand management in India, this paper provides a brief overview of the status, effectiveness and technical and institutional requirements of six demand management options, that is, water pricing, water markets, water rights, energy regulations, water saving technologies and user organizations. The paper then ...


    By IWA Publishing

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