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Open AccessArticle

Evaluation of Deficit Irrigation and Water Quality on Production and Water Productivity of Tomato in Greenhouse

UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
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Agriculture 2020, 10(7), 297; https://doi.org/10.3390/agriculture10070297
Received: 19 June 2020 / Revised: 13 July 2020 / Accepted: 13 July 2020 / Published: 14 July 2020
(This article belongs to the Special Issue Productivity, Efficiency, and Sustainability in Agriculture)
This study deals with the evaluation of the effects of deficit irrigation (DI) and water quality (WQ) on the vegetative and productive response of greenhouse-grown tomatoes (Lycopersicon esculentum Mill. cv. Izmir). A pot-based experiment was carried out over two growing seasons. Three WQ: (groundwater, recycled wastewater and a mix of both) were applied in four irrigation scenarios which targeted soil moisture content (SMC) maintaining at 60%, 70%, 80% and 100% of field capacity (FC). Results showed that both DI and WQ had significant effects on crop development, yield and water productivity. The highest values of plant height (186.0 ± 0.58 cm) and stem diameter (23.40 ± 0.02 mm) were found at 100% FC (control). Total yield ranged from 2.33 ± 0.03 kg/plant (60% FC) to 4.05 ± 0.06 kg/plant (control). However, mild water stress (SMC maintaining at 80% FC) showed a positive effect on irrigation water use efficiency (IWUE) without significant yield reduction compared to control. IWUE was at its maximum (31.77 ± 0.47 kg/m3) at 80% FC. A DI regime based on 80% FC could be an efficient irrigation strategy particularly in water-limiting condition. Recycled wastewater was superior among the three WQ for achieving a better crop growth, yield and water productivity at same DI level. View Full-Text
Keywords: greenhouse tomato; irrigation deficiency; water productivity; water quality; recycled water reuse greenhouse tomato; irrigation deficiency; water productivity; water quality; recycled water reuse
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MDPI and ACS Style

Chand, J.; Hewa, G.; Hassanli, A.; Myers, B. Evaluation of Deficit Irrigation and Water Quality on Production and Water Productivity of Tomato in Greenhouse. Agriculture 2020, 10, 297. https://doi.org/10.3390/agriculture10070297

AMA Style

Chand J, Hewa G, Hassanli A, Myers B. Evaluation of Deficit Irrigation and Water Quality on Production and Water Productivity of Tomato in Greenhouse. Agriculture. 2020; 10(7):297. https://doi.org/10.3390/agriculture10070297

Chicago/Turabian Style

Chand, Jeet; Hewa, Guna; Hassanli, Ali; Myers, Baden. 2020. "Evaluation of Deficit Irrigation and Water Quality on Production and Water Productivity of Tomato in Greenhouse" Agriculture 10, no. 7: 297. https://doi.org/10.3390/agriculture10070297

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