Subirrigation of container-grown tomato I: Decreased concentration of the nutrient solution sustains growth and yield

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dc.citation.issue10
dc.citation.volume11
dc.contributor.authorGarcía-Santiago JC
dc.contributor.authorValdez-Aguilar LA
dc.contributor.authorCartmill AD
dc.contributor.authorCartmill DL
dc.contributor.authorJuárez-López P
dc.contributor.authorDíaz-Pérez JC
dc.date.accessioned2024-07-18T02:00:05Z
dc.date.available2024-07-18T02:00:05Z
dc.date.issued2019-10-02
dc.description.abstractSubirrigation of containerized vegetable crops is a promising strategy to increase water and fertilizer use efficiency. However, the nutrient solution may cause salts accumulation in the substrate top layer. The objective of this study was to determine the effect of nutrient solution concentration in container-grown tomato under surface drip-irrigation and subirrigation. The plants were irrigated with solutions at concentrations of -0.072, -0.058 and -0.043 MPa (100%, 80% and 60% of Steiner's nutrient solution, respectively). Except at the highest concentration, the greatest yields occurred in subirrigated (10.6 kg plant-1) compared to drip-irrigated plants (9.5 kg plant-1). In drip-irrigated plants, yield was higher with the highest solution concentration. The increased yield in subirrigated plants at low solution concentrations was related with increased fruit N and Ca content. The higher accumulation of N, P, K and Ca demonstrates that subirrigation allows for increased nutrient use efficiency, particularly when using nutrient solutions of low concentration. Water use efficiency was markedly increased in subirrigated tomato, as 300 to 460 g of fruit L-1 were produced, compared to 50 g L-1 in drip-irrigated plants. Our results indicate that subirrigation is a feasible system for soilless-cultivated tomato provided the nutrient solution is reduced to a 60% of the total concentration.
dc.description.confidentialfalse
dc.edition.editionOctober 2019
dc.identifier.citationGarcía-Santiago JC, Valdez-Aguilar LA, Cartmill AD, Cartmill DL, Juárez-López P, Díaz-Pérez JC. (2019). Subirrigation of container-grown tomato I: Decreased concentration of the nutrient solution sustains growth and yield. Water (Switzerland). 11. 10.
dc.identifier.doi10.3390/w11102064
dc.identifier.eissn2073-4441
dc.identifier.elements-typejournal-article
dc.identifier.number2064
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70226
dc.languageEnglish
dc.publisherMDPI (Basel, Switzerland)
dc.publisher.urihttps://www.mdpi.com/2073-4441/11/10/2064
dc.relation.isPartOfWater (Switzerland)
dc.rights(c) 2019 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectgreenhouse vegetable crops
dc.subjectnutrient use efficiency
dc.subjectwater use efficiency
dc.subjectelectrical conductivity of irrigation water
dc.titleSubirrigation of container-grown tomato I: Decreased concentration of the nutrient solution sustains growth and yield
dc.typeJournal article
pubs.elements-id485407
pubs.organisational-groupCollege of Health
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