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Water 2018, 10(1), 62; doi:10.3390/w10010062

Crop and Irrigation Management Systems under Greenhouse Conditions

1
Agronomy Department of Superior School Engineering, University of Almería, Agrifood Campus of International Excellence ceiA3, Carretera Sacramento s/n, La Cañada de San Urbano, 04120 Almería, Spain
2
Faculty of Agriculture, Kafrelsheikh University, 33511 Kafr El-Shiekh, Egypt
3
University of Novi Sad, Faculty of Agriculture, Trg, Dositeja Obradovica 8, 2100 Novi Sad, Serbia
*
Author to whom correspondence should be addressed.
Received: 21 November 2017 / Revised: 4 January 2018 / Accepted: 9 January 2018 / Published: 11 January 2018
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Abstract

Plants of Ruscus aculeatus, known as “butcher’s broom”, Maytenus senegalensis, known as “confetti tree”, and Juncus acutus, known as “spiny rush” were grown in pots with a mixture of sphagnum peat-moss and Perlite in order to determine the effect and evolution over time of three water use systems on plant growth, water saving and nutrient uptake. These were an open system (irrigated with standard nutrient solution) and two closed systems (blended-water (drainage water blended with water of low electrical conductivity (EC)) and sequential reuse of drainage (sequential-reuse) water), over a period of 8 weeks. Irrigation with blended- and sequential-reuse-water increased the biomass of all three species at the end of the experiment, compared to the open system. Overall, sequential-reuse-water treatment maximised biomass production. The application of blended- and sequential-reuse-water allowed savings of 17% of water in comparison to the open system. Regarding Cl, NO3 and H2PO4 loads, there was a removal of 5%, 32% and 32%; respectively in the blended-water treatment and 15%, 17% and 17% in the sequential-reuse water treatment compared to the open system. For the cation loads (Na+, K+, Ca2+ and Mg2+) in these water treatments there was a removal of 10%, 32%, 7% and 18% respectively in the blended-water treatment, and 17%, 22%, 17% and 18% respectively in the sequential-reuse treatment, compared to the open system. View Full-Text
Keywords: blending water; drainage water; electrical conductivity; ornamental potted plants; water-sequential reuse blending water; drainage water; electrical conductivity; ornamental potted plants; water-sequential reuse
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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García-Caparrós, P.; Llanderal, A.; El-Tarawy, A.; Maksimovic, I.; Lao, M.T. Crop and Irrigation Management Systems under Greenhouse Conditions. Water 2018, 10, 62.

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