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Development and evaluation of a DSS for drainage management in semi-closed hydroponic systems
dc.creator | Katsoulas, N. | en |
dc.creator | Kittas, C. | en |
dc.creator | Bartzanas, T. | en |
dc.creator | Savvas, D. | en |
dc.date.accessioned | 2015-11-23T10:34:17Z | |
dc.date.available | 2015-11-23T10:34:17Z | |
dc.date.issued | 2014 | |
dc.identifier.isbn | 9789462610217 | |
dc.identifier.issn | 5677572 | |
dc.identifier.uri | http://hdl.handle.net/11615/29281 | |
dc.description.abstract | The recycling of greenhouse effluents in soilless cultivation systems is environment-friendly, since the waste of water and the disposal of nutrients to the environment is drastically reduced or even eliminated. However, a long-term recycling of the effluents may result in accumulation of Na+ and Cl- in the recycled nutrient solution. The major aim of the present research was to test the performance of a Na+ mass balance model operating as part of a decision support system in a tomato crop grown in a closed-loop hydroponic system. Three treatments were compared: a completely open, a completely closed and a semi-closed hydroponic system during one experimental period lasting from October 2011 to January 2012. The fresh water used for the preparation of the nutrient solution contained 2 mM NaCl. During the total experimental period, the water uptake by the crop was relatively low, near to 130 L m-2, and thus, the concentration of Na+ in the closed system did not surpass the level of about 20 mM during the total experimental period. Comparison between measured and simulated Na+ values gave fair results. The system was efficient at minimizing the discharge of nutrient solution effluents in semi-closed hydroponic systems, thereby maximizing the water use efficiency. | en |
dc.source.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-84902258299&partnerID=40&md5=5a0b80dec7050da6b3de0a67065f9e3c | |
dc.subject | Crop water consumption | en |
dc.subject | Greenhouse | en |
dc.subject | Nutrient solution management | en |
dc.subject | Tomato | en |
dc.title | Development and evaluation of a DSS for drainage management in semi-closed hydroponic systems | en |
dc.type | other | en |
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