micro-irrigation Articles

  • Expanding the applications of micro irrigation `Drip` treatment and disposal systems in Delaware

    Abstract An 18–month field evaluation of four micro–irrigation "drip" treatment and disposal systems was conducted to determine if reducing the separation distance between the bottom of the drip–line and the seasonal high water table (limiting condition) could be reduced from 18 inches to 12 inches. In this study three systems did not have advanced ...


    By Geoflow, Inc.

  • Quantification of soil surface evaporation under micro-scale advection in drip-irrigated fields

    The objective of this study is to quantify soil surface evaporation under micro-scale advection in drip-irrigated fields. A numerical model for estimating soil surface evaporation under micro-scale advection, assuming drip-irrigated fields, is introduced. Results indicate that the soil surface evaporation changes spatially. Soil surface evaporation at the upwind edge of wet soil portions adjacent ...


    By Springer

  • 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 ...

  • 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

  • Empowering Women in Irrigation Management

    This case study aims to highlight, within the context of a Gender Pilot of the Peru Sierra Irrigation Project, how women's different needs were identified to facilitate their access to training and to increase their participation in the management of water users' organizations. It follows the diagnostic participatory discussions around the importance for communities to include women in water ...


    By IWA Publishing

  • Incentives and instruments for sustainable irrigation

    This book looks at Sustainable Irrigation in a holistic way, considering the multidisciplinary objectives of sustainable agriculture, sustainable water management, sustainable water infrastructure, sustainable irrigation communities and a sustainable environment, the need to reallocate water between competing users, and the need for water and food security in an environment of scarcity. It does ...


    By WIT Press

  • Variable Demand Irrigation

    2,000 GPM Turbine pump supplies four 500 GPM pivot sprinklers After three VFD’s failed in less than five years, this farmer decided to try a Cycle Stop Valve. Three years later there have been no problems with the CSV. The system is able to supply one pivot just as easily as all four pivots when ...


    By Cycle Stop Valves, Inc.

  • Micro-credit programmes, social capital and micro-enterprise performance

    Micro-credit programmes (generally considered to be initiated by the 2006 Nobel Prize winner Mohammed Yunus of the Grameen Bank in Bangladesh) are a form of social (global) entrepreneurship that work with low-income micro-enterprise owners and construct alternate means of approving, disbursing and monitoring loans for micro-enterprises. In this paper, we develop a conceptual model that identifies ...


    By Inderscience Publishers

  • Limits and challenges of manufacturing micro moulds

    Due to the ongoing miniaturisation in industrial sectors like automotive, electronics or medical, the development of new manufacturing processes which are suitable for micro system technologies gains more and more importance. The miniaturisation of components leads to challenges in the manufacturing of micro parts. One application area is the manufacturing of moulds for the micro powder injection ...


    By Inderscience Publishers

  • Deficit irrigation optimization of cotton with aquacrop

    Given the current pressures to reduce irrigation water use, it is important to optimize the use of water in irrigated agriculture. This work was aimed at determining the optimum level of applied irrigation water (AIW) for cotton (Gossypium hirsutum L.) production in southern Spain under several climatic and agricultural policy scenarios. To generate the yield response to variations in AIW, we ...

  • The Environmental Impacts of Irrigation in the European Union

    The purpose of the studies is to explore the relationship generally between agricultural sectors and practices and the environment. The sectoral studies describe the environmental relationship, the practical possibilities to improve that relationship and the various options (with agri-environmental measures) to establish environmental gains. They should contribute to an informal debate and ...

  • Study on the joint probability distribution of irrigation water volume and irrigation water efficiency

    Using the copula method, the joint probability distribution of irrigation water volume and efficiency is constructed, and their joint return period is also described to reveal the encounter probability of irrigation water volume and efficiency. Furthermore, the conditional probability of irrigation water efficiency with different water volumes is built to show the quantitative effects of flow on ...


    By IWA Publishing

  • Morocco: Irrigation water pricing policy of large scale irrigation projects

    In Morocco, the consequence of increased industrialization and a rapidly growing population accentuated by a progressive shift from rural to urban living. This resulted in the growth of requirements for the quality and quantity of water resources, their more intensive and comprehensive use. The ...


    By IWA Publishing

  • An analysis of groundwater irrigation expansion in India

    This paper suggest that groundwater irrigation expansion in India is driven mainly by the population pressure and not necessarily dependent on the change in surface water irrigation. However, in the districts irrigated by Groundwater only, our findings indicate that the marginal effect of groundwater on Gross Irrigated Area (GIA) is lower than that in the district endowed with both surface and ...


    By Inderscience Publishers

  • 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

  • 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

  • Waterquality in irrigation canals and boreholes - Greece

    Background Kavala is located in the North East of Greece, 680 km from the capital Athens. The population of the prefecture of Kavala is around 85,000 people. The River Nestos which flows through this prefecture is very important for the agriculture of the area. To allow for a fair distribution of the water for irrigation purposes, a number of Boreholes and canals have been established. The ...


    By The OTT Hydromet Group

  • The effect of winter flood irrigation with saline water on groundwater in a typical irrigation area

    Flood irrigation in the winter has been widely applied in northwest China for several years, but little attention has been paid to the flood irrigation program to date. In order to seek a reasonable irrigation quota, a flood irrigation experiment using two common quotas (1,800 and 1,200 m3 ha−1) was conducted in an area irrigated by saline water in the Nanjiang basin with shallow ...


    By IWA Publishing

  • Distribution of moisture and salinity under deficit irrigation and irrigation water salinity in an alternative trickle irrigation system of tape

    This study was performed to investigate the horizontal and vertical distribution of soil moisture and salinity using an alternative trickle irrigation system of drip tape. Four main treatments consisting of 100, 80, 70, and 60% of the plants’ water requirements and three sub-treatments of 2.1, 4.6, and 10.2 dS/m, were conducted. Following irrigation, the soil moisture and salinity ...


    By IWA Publishing

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