sub-irrigation Articles

  • 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

  • A novel synthesis method for TiO2 particles with magnetic Fe3O4 cores

    TiO2@(AC/Fe3O4) (AC is activated carbon) was prepared by using AC and Fe3O4 as joint support. The morphological features, crystal structure, and magnetism of the final product were characterized. The results indicate that TiO2 particles formed on the surface of AC and Fe3O4; the sizes of TiO2 and ...


    By IWA Publishing

  • Effect of O3 and O3/H2O2 on algae harvesting using chitosan

    We examined the effects of pre-oxidation using ozone (O3) and a combination of O3 and hydrogen peroxide (O3/H2O2) on algae suspensions and their harvesting. Inactivation of algae cells, release of intracellular organic matter (IOM), mineralization of extracellular organic matter (EOM), and changes in molecular weight distribution of EOM were found after ...


    By IWA Publishing

  • Degradation of Orange II in aqueous solution by a novel electro/Fe3O4 process

    The removal of Orange II in aqueous solution by Fe3O4 enhanced anode oxidation (EC/Fe3O4 process) was performed in an electrochemical reactor. The process involved the use of a dimensionally stable anode and a stainless steel cathode. Fe3O4 was performed as particle electrodes to increase mass transfer coefficient and reduce energy ...


    By IWA Publishing

  • A sub-economy in Montreal

    This paper explores the size and socio-demographic characteristics of a Jewish sub-economy found in Montreal in the late 1970s and 1980s, along with other features of Jewish economic activity in Canadian cities. It is found that there is a much higher than expected degree of intra-group economic activity found linking Jewish entrepreneurs, employers, workers, suppliers, and customers. This ...


    By Inderscience Publishers

  • Cleanup at Mandirituba Power Sub Substation

    The site was divided into 6 squares and each square is being treted independently with AgroRemed BR CTBA. At the end of June, 2007 first square was treated and the level of contamination in the soil was reduced to acceptable ...


    By Sarva Bio Remed, LLC

  • Seeds of change in sub-Saharan Africa

    In the late 1900s, as per-acre grain yields moved to 3 metric tons per hectare in South and Southeast Asia and Latin America, 5 metric tons per hectare in China, and 10 metric tons per hectare in North America, Europe and Japan, there’s one place where production stagnated big time: sub-Saharan Africa, where loss of soil fertility on small farms trapped grain production at an unsustainable ...


    By Ensia

  • Synthesis, characterization and photocatalytic activity of 1D TiO2 nanostructures

    Nanowire/nanorod TiO2 structures of approximately 8 nm in diameter and around 1,000 nm long were synthesized by alkaline hydrothermal treatment of two different TiO2 nanopowders. The first precursor was TiO2 obtained by the sol-gel process (SG-TiO2); the second was the well-known commercial TiO2 P-25 (P25-TiO2). Anatase-like 1D TiO2 ...


    By IWA Publishing

  • 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.

  • Foreign direct investment in Sub–Saharan Africa

    This article deals with the domestic and private foreign direct investment in sub–Saharan African countries. The region share of global foreign direct investment inflows is 0.4% in 1990–2000, and 24% in 2004–2005. The most important reasons are linked with the socio–political and structural conditions. The African saving ratio is 18.1%, inflation 7.4% in 2009. This article shows that the ...


    By Inderscience Publishers

  • 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 ...

  • 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 ...

  • Growth of Hg1-xCdxTe nanostructures by molecular beam epitaxy with ellipsometric control

    We demonstrate the growth of potential barriers, wells and periodic nanostructures on the basis of Hg1-xCdxTe by molecular beam epitaxy. In situ single wavelength ellipsometry is used for control of thickness and variation of Hg1-xCdxTe composition. The behavior of ellipsometric parameters measured during the ...


    By Inderscience Publishers

  • 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

  • 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

  • The effect of poultry manure application rate and AlCl3 treatment on bacterial fecal indicators in runoff

    Increasing costs associated with inorganic fertilizer have led to widespread use of broiler litter. Proper land application, typically limiting nutrient loss, is essential to protect surface water. This study was designed to evaluate litter-borne microbial runoff (heterotrophic plate count bacteria, staphylococci, Escherichia coli, enterococci, and Clostridium perfringens) ...


    By IWA Publishing

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