Yield of lettuce grown in hydroponic and aquaponic systems using different substrates

Jordan, Rodrigo Aparecido; Ribeiro, E.; Oliveira, Fabrício Correia de; Geisenhoff, Luciano Oliveira; Martins, Elton Aparecido Siqueira

doi:10.1590/1807-1929/agriambi.v22n8p525-529

Cited by 25 publications

(33 citation statements)

References 14 publications

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“…Cation exchange capacity improves nutrient uptake of these organic-based materials. In another study, a combination of coconut fiber and crushed stones resulted in higher AP lettuce yield [25]. Thus, the need to explore more on AP crop productivity using different HP system types.…”

Section: Subgroup Analysismentioning

confidence: 99%

“…Generally, aquaculture effluent is usually low in essential crop nutrients required for optimum plant growth, warranting the need for nutrient supplementation. Reports show that nutrient supplementation leads to similar, or even higher, AP crop yield as cHP [24][25][26]. Other factors that influence AP crop yield include crop species [27,28], substrate/grow media type [14,28,29], HP system type, and a myriad of others, which affect nutrient availability and uptake by crops [2,[30][31][32][33].…”

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confidence: 99%

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Comparisons between Aquaponic and Conventional Hydroponic Crop Yields: A Meta-Analysis

et al. 2019

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Aquaponic is a relatively new system of farming, which has received much research attention due to its potential for sustainability. However, there is no consensus on comparability between crop yields obtained from aquaponics (AP) and conventional hydroponics (cHP). Meta-analysis was used to synthesize the literature on studies that compared crop yields of AP and cHP. Factors responsible for differences were also examined through subgroup analysis. A literature search was conducted in five databases with no time restriction in order to capture any publication on AP and cHP crop yield comparisons. The search was, however, limited to journal and conference articles published in English. Study characteristics and outcome measures of food crops were extracted. A natural log response ratio effect size measure was used to transform study outcomes. An unweighted meta-analysis was conducted through bootstrapping to calculate overall effect size and its confidence interval. Between-study heterogeneity (I2) was estimated using a random effects model. Subgroup and meta-regression were used to assess moderators, in an attempt to explain heterogeneity in the effect size. The results showed that although crop yield in AP was lower than conventional cHP, the difference was not statistically significant. However, drawing conclusions on the overall effect size must be done with caution due to the use of unweighted meta-analysis. There were statistically significant effects of aquatic organism, hydroponic system type, and nutrient supplementation used in the studies on crop yield comparisons. Nutrient supplementation, particularly, led to on average higher crop yield in AP relative to cHP. These findings are a vital information source for choosing factors to include in an AP study. These findings also synthesize the current trends in AP crop yields in comparison with cHP.

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Section: Subgroup Analysismentioning

confidence: 99%

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confidence: 99%

Comparisons between Aquaponic and Conventional Hydroponic Crop Yields: A Meta-Analysis

et al. 2019

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“…Os valores de oxigênio dissolvido oscilaram um pouco devido a variação de temperatura e problemas com o sistema de oxigenação, se mantendo abaixo do valor mínimo recomendado, que é de 3 mg L -1 (Rakocy et al, 2006;Jordan et al, 2018) em algumas leituras. A necessidade de oxigênio das plantas aumenta com a temperatura, e a diminuição da concentração para valores abaixo de 3 mg L -1 inibi o crescimento das raízes (Hosseinzadeh et al, 2017), afetando assim o desenvolvimento das plantas.…”

Section: Resultsunclassified

“…A aquaponia é a integração entre a produção superintensiva de peixes e a produção de vegetais e hortaliças (Medina et al, 2016). Trata-se de um ambiente simbiótico, onde os vegetais atuam como filtro biológico, removendo os elementos necessários para o seu Research, Society and Development, v. 9, n. 9, e1000998198, 2020 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v9i9.8198 4 crescimento, em contrapartida, melhorando a qualidade da água para os peixes (Geisenhoff et al, 2016;Jordan et al, 2018).…”

Section: Introductionunclassified

Produtividade de híbridos de tomate cultivados em aquaponia associada em sistema tipo floating

Jordan

Giordano

Oliveira

et al. 2020

RSD

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A pesquisa de laboratório teve o objetivo de avaliar produtividade de 5 híbridos de tomate (Apolo, Serato, Vento, Candieiro e Pioneiro) em um sistema aquapônico associado a criação de tilápias. O delineamento experimental empregado foi inteiramente casualizado, com 5 tratamentos (variedades de tomate) e quatro repetições. Cada repetição compreendeu um bloco de cultivo, uma área de um metro quadrado com 6 plantas. Foram monitorados os seguintes parâmetros da água do sistema: oxigênio dissolvido, pH, condutividade elétrica, temperatura mínima e máxima. A colheita foi realizada semanalmente entre o período de 05/01/2018 a 24/01/2018, totalizando quatro colheitas. No momento da colheita, foi determinada a massa e as medidas de cada fruto (diâmetro transversal e comprimento longitudinal). Os resultados foram analisados por meio de análise de variância pelo teste F e as médias comparadas pelo teste de Tukey, a 5% de probabilidade. O híbrido Apolo foi o que apresentou maior produtividade média total (104,53 t ha-1), com incrementos de produtividade variando de 19 a 61% em relação aos demais híbridos. As produtividades alcançadas podem ser consideradas elevadas e equivalentes a valores obtidos em cultivo convencional, em solo.

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“…Vegetable cultivation in aquaponic system is a very widespread technique in several countries of the world, but in Brazil there are no reports about aquaponic cultivation on a commercial scale. However, studies have been conducted in an attempt to provide information that contributes to the implementation of this cultivation technique (Geisenhoff, Jordan, Santos, Oliveira, & Gomes, 2016;Jordan, Ribeiro, Oliveira, Geisenhoff, & Martins, 2018).…”

Section: Introductionmentioning

confidence: 99%

Postharvest Quality of Yellow Pear Tomato Cultivated in Aquaponic System

Silva¹,

Schoeninger²,

Oliveira³

et al. 2019

JAS

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The production of vegetables in aquaponic systems has high sustainability and conservation of natural resources, but studies that make their cultivation feasible under Brazilian conditions are still incipient. Given the influence that the cultivation system can cause on the postharvest characteristics of fruits and vegetables, this study aimed to evaluate the postharvest quality of yellow pear tomato cultivated in an aquaponic system. Tomato plants were grown in a protected environment, in the experimental area of aquaponics of the Faculty of Agrarian Sciences, belonging to the Federal University of Grande Dourados. The experimental design was completely randomized in a factorial scheme, with two factors: maturity stage at harvest and storage time. Three stages of fruit maturity (green, intermediate and ripe) and two storage times (zero and 35 days) were analyzed. Tomato samples were subjected to the analyses using the whole fruit, evaluated for mass loss, color and firmness, and the fruit pulp, evaluated for soluble solids (SS), titratable acidity (TA), SS/TA ratio, pH and lycopene content. The fruits of yellow pear tomato cultivated in aquaponic system were in satisfactory conditions with respect to the postharvest parameters evaluated, indicating great potential to be cultivated on a commercial scale under Brazilian conditions. The parameters analyzed were similar or superior to the parameters of tomatoes grown in other cropping systems.

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Yield of lettuce grown in hydroponic and aquaponic systems using different substrates

Cited by 25 publications

References 14 publications

Comparisons between Aquaponic and Conventional Hydroponic Crop Yields: A Meta-Analysis

Comparisons between Aquaponic and Conventional Hydroponic Crop Yields: A Meta-Analysis

Produtividade de híbridos de tomate cultivados em aquaponia associada em sistema tipo floating

Postharvest Quality of Yellow Pear Tomato Cultivated in Aquaponic System

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