Comparison of soil and hydroponic cultivation systems for spinach irrigated with brackish water

Leal, Lucas Yago de Carvalho; Souza, Eliane Helena Alvim de; Júnior, José Amilton Santos; Santos, Monaliza Alves dos

doi:10.1016/j.scienta.2020.109616

Cited by 15 publications

(10 citation statements)

References 53 publications

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“…SAMBO et al (2019), for example, compiled scientific results demonstrating the higher water use efficiency in soilless cultivation for various crops when compared with soil-based cultivation. Similar results were also observed in other studies (LEAL et al, 2020;VERDOLIVA et al, 2021). In addition, BIONE et al (2014) draw attention to the need to study new crops in hydroponic systems, to increase the options in this type of cultivation, which today, in Brazil, is mainly used for the cultivation of leafy species.…”

Section: Introductionsupporting

confidence: 71%

“…Salinity is one of the abiotic stresses that most affects plant development, even in the hydroponic systems when brackish water is used to prepare the nutrient solution, as observed in the present study for 'Biquinho' pepper and also for other crops, such as spinach (Spinacia oleracea L.) (LEAL et al, 2020), okra (Abelmoschus esculentus L.) (MODESTO et al, 2019), tomato (Lycopersicon esculentum Mill 'Unicorn') (ISLAM et al, 2018). However, under salt stress, the hydroponic system generally promotes higher yield compared to soil (conventional cultivation) due to the readily available water and nutrients that provide plants with better conditions for root development (LEAL et al, 2020).…”

Section: Discussionmentioning

confidence: 53%

“…In traditional soil-based cultivation systems, the salts contained in the brackish waters reduce the total water potential, hampering the water absorption by the roots, decreasing water consumption, and causing problems in metabolism with direct reduction of production (ZANETTI et al, 2019). Some of these effects of water salinity are attenuated in the hydroponic cultivation system (due to the absence of matric potential) when compared to traditional cultivation in soil and may even increase biomass production and water use efficiency, as observed by LEAL et al (2020) in the cultivation of spinach (Spinacia oleracea) with the increase of salinity of the nutrient solution.…”

Section: Introductionmentioning

confidence: 99%

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Water consumption and water use efficiency of ‘Biquinho’ pepper in hydroponic cultivation with brackish water

et al. 2023

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The knowledge of water consumption and the efficiency of water use by crops is extremely important in the elaboration of agronomic and hydraulic projects of hydroponic systems. Thus, the present study determined the water consumption and water use efficiency of ‘Biquinho’ pepper cultivated in the hydroponic system using seven levels of electrical conductivity of the nutrient solution (ECsol) of 2.70, 3.64, 4.58, 5.28, 6.09, 6.90, and 7.77 dS m-1 and six replicates in randomized blocks. The hydroponic system used was the Nutrient Film Technique (NFT). The water consumption per plant was determined at an interval of ten days in the crop cycle (120 days after transplanting). The maximum mean daily water consumption was equal to 5.88 L plant-1 during the period 111-120 DAT, for ECsol of 4.58 dS m-1. The maximum water consumption for the crop cycle (120 DAT) was 275.66 L per plant for an estimated ECsol = 4.11 dS m-1. The highest water use efficiency (WUE), based on the total production of fruit fresh mass (ripe and unripe fruits) of ‘Biquinho’ pepper was 10.84 kg m-3 up to an estimated ECsol of 5.18 dS m-1, with an exponential reduction thereafter. The salinity of the nutrient solution, biomass production, and evapotranspiration are factors that influence the most water consumption of ‘Biquinho’ pepper.

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Section: Introductionsupporting

confidence: 71%

Section: Discussionmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

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Water consumption and water use efficiency of ‘Biquinho’ pepper in hydroponic cultivation with brackish water

et al. 2023

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“…In both species, neither salinity nor N level significantly influenced leaf succulence, which instead significantly decreased in successive harvests, while the DW/FW ratio increased (Tables 5 and 8). Leal et al [49] reported that, in spinach, the irrigation of brackish water with salinities ranging between 0.8 and 7.5 dS m −1 increased leaf succulence in plants that were grown in soil, while the opposite result was found in plants that were cultivated in a floating system [49].…”

Section: Leaf Qualitymentioning

confidence: 99%

Growth and Mineral Relations of Beta vulgaris var. cicla and Beta vulgaris ssp. maritima Cultivated Hydroponically with Diluted Seawater and Low Nitrogen Level in the Nutrient Solution

et al. 2022

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There is an increasing interest in the use of seawater in horticulture. The objective of this study was to evaluate Beta vulgaris var. cicla (Swiss chard) and its wild ancestor B. vulgaris spp. maritima (sea beet) as potential crop species for seawater hydroponics or aquaponics. Both species were grown in a floating system for leaf production with recurrent harvests. The nutrient solutions contained different concentrations of nitrate (1 and 10 mM) and a synthetic sea salt (0 and 10 g L−1), in a factorial design, where the saline solution with a low nitrate level intended to mimic the typical nutritional conditions of saltwater aquaponics. In both species, increasing the salinity or reducing the N level in the nutrient solution reduced the crop yield and total dry biomass. In both Swiss chard and sea beet, the use of saline water resulted in a lower leaf concentration of K, Ca, Cu, and Mn, and a greater content of Na and Cl. In Swiss chard, an increase in Na and Cl and a decrease in K leaf content were found in successive harvests. On average, sea beet showed a higher leaf production and accumulation of nitrate than Swiss chard.

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“…(2021) found that hydroponic systems produced 40% larger lettuce plants. Compared with SBS, Leal et al. (2020) observed that HPS could mitigate the influence of salinity stress and obtain higher yield when using water containing high concentrations of salt.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of two typical greenhouse lettuce production systems: commercial hydroponic production and traditional soil cultivation

Wang¹,

Ning

Zheng³

et al. 2023

Front. Plant Sci.

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IntroductionDue to the shortage of land and water resource, optimization of systems for production in commercial greenhouses is essential for sustainable vegetable supply. The performance of lettuce productivity and the economic benefit in greenhouses using a soil-based system (SBS) and a hydroponic production system (HPS) were compared in this study.MethodsExperiments were conducted in two identical greenhouses over two growth cycles (G1 and G2). Three treatments of irrigation volumes (S1, S2, and S3) were evaluated for SBS while three treatments of nutrient solution concentration (H1, H2, and H3) were evaluated for HPS; the optimal levels from each system were then compared.Results and discussionHPS was more sensitive to the effects of environmental temperature than SBS because of higher soil buffer capacity. Compared with SBS, higher yield (more than 134%) and higher water productivity (more than 50%) were observed in HPS. We detected significant increases in ascorbic acid by 28.31% and 16.67% and in soluble sugar by 57.84% and 32.23% during G1 and G2, respectively, compared with SBS. However, nitrate accumulated in HPS-grown lettuce. When the nutrient solution was replaced with fresh water 3 days before harvest, the excess nitrate content of harvested lettuce in HPS was removed. The initial investment and total operating cost in HPS were 21.76 times and 47.09% higher than those in SBS, respectively. Consideration of agronomic, quality, and economic indicators showed an overall optimal performance of the H2 treatment. These findings indicated that, in spite of its higher initial investment and requirement of advanced technology and management, HPS was more profitable than SBS for commercial lettuce production.

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Comparison of soil and hydroponic cultivation systems for spinach irrigated with brackish water

Cited by 15 publications

References 53 publications

Water consumption and water use efficiency of ‘Biquinho’ pepper in hydroponic cultivation with brackish water

Water consumption and water use efficiency of ‘Biquinho’ pepper in hydroponic cultivation with brackish water

Growth and Mineral Relations of Beta vulgaris var. cicla and Beta vulgaris ssp. maritima Cultivated Hydroponically with Diluted Seawater and Low Nitrogen Level in the Nutrient Solution

Performance analysis of two typical greenhouse lettuce production systems: commercial hydroponic production and traditional soil cultivation

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