Use of fish-farming wastewater in lettuce cultivation

Guimarães, Isaias Porfírio; Oliveira, Francisco de Assis de; Torres, Salvador Barros; Pereira, Francisco Élder Carlos Bezerra; França, Francisco Diorge de; Oliveira, Mychelle Karla Teixeira de

doi:10.1590/1807-1929/agriambi.v20n8p728-733

Cited by 8 publications

(11 citation statements)

References 13 publications

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“…Negative effect of salinity on lettuce head diameter has also been found by other authors, such as Santos et al (2010). Guimarães et al (2016), working with seven lettuce cultivars, observed that the effect of salinity on this variable varied according to the cultivar.…”

Section: Resultssupporting

confidence: 77%

Effect of Saline Stress and Calcium Nitrate on Lettuce Grown on Coconut Fiber

Oliveira¹,

Marques²,

Targino³

et al. 2018

JAS

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This study aimed to evaluate the use of saline solutions enriched with calcium nitrate in the production of lettuce grown in coconut fiber. The experiment was carried out from July to August 2017 in a greenhouse, at the Federal Rural University of the Semi-Arid Region (UFERSA), Mossoró-RN, Brazil. A randomized block design was used, in 2 × 5 factorial scheme, with three replicates. Treatments resulted from the combination of two lettuce cultivars [Elba (Curly) and Irene (Crisphead)] and five nutrient solutions (S1- standard nutrient solution; S2-S1 + NaCl (28.48 mmol L-1); S3-S2 + Ca(NO3)2 (6.89 mmol L-1); S4-S2 + Ca(NO3)2 (9.15 mmol L-1); S5-S2 + Ca(NO3)2 (11.43 mmol L-1)]. Plants were harvest 30 days after transplantation and the following variables were analyzed: head diameter, stem diameter, number of leaves, fresh weight, dry weight, leaf area, specific leaf area and leaf succulence. The cv. Irene (Crisphead) is more tolerant to nutrient solution salinity compared with the cv. Elba (Curly). Nutrient solutions enriched with 50 and 100% of Ca(NO3)2 promoted better performance of the cultivars Elba and Irene, respectively, fertigated with saline nutrient solution.

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Section: Resultssupporting

confidence: 77%

Effect of Saline Stress and Calcium Nitrate on Lettuce Grown on Coconut Fiber

Oliveira¹,

Marques²,

Targino³

et al. 2018

JAS

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“…The observed lettuce yield (leaves number and leaf mass) was relatively superior than the values reported by Sikawa and Yakupitiyage (2010), but lower than the values reported by Seawright et al (1998) and Rakocy et al (2006) in an aquaponics system, in which effluent was enriched with a nutrient solution. Although no additional nutrient solution has been included in this trial, except hydrated lime, the lettuce biomass obtained was similar to the values reported by Castellani et al (2009) who also investigated the integration of the freshwater shrimp culture with a hydroponic system and by Guimarães et al (2016) who grew lettuce plants hydroponically using saline wastewater from fish farming. Our lettuce yield was relatively lower than the values reported by Genuncio et al (2012) who grew lettuce plants hydroponically using nutrient solutions.…”

Section: Water Quality and Growth Of Hydroponic Cropssupporting

confidence: 81%

“…The organic waste volume generated in this trial probably did not provide adequate nutrition for lettuce. It is noteworthy that the lettuce growth has an interrelationship with ionic concentration and the flow rate of the nutrient solution, which are relevant variables at the nutrient availability and water retention in a hydroponic system (Genuncio et al 2012;Guimarães et al 2016).…”

Section: Water Quality and Growth Of Hydroponic Cropsmentioning

confidence: 99%

Performance of an aquaponics system using constructed semi-dry wetland with lettuce (Lactuca sativa L.) on treating wastewater of culture of Amazon River shrimp (Macrobrachium amazonicum)

Lima¹,

Duarte

Bastos³

et al. 2019

Environ Sci Pollut Res

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Aquaponics is a science that integrates animal aquatic production with vegetable culture in recirculating water systems. The performance of an aquaponics system using constructed semi-dry wetland with lettuce (Lactuca sativa L.) planted on treating wastewater of culture of shrimp Macrobrachium amazonicum was evaluated. Each aquaponics module consisted in four culture tanks (1 m 3 tank −1), conical sedimentation tank (0.1 m 3), circular holding tank (0.2 m 3), and constructed semi-dry wetland (0.2 m × 1.0 m × 4.0 m). Post larvae (PL) shrimps with an initial average mass of 314 ± 4.75 mg were stocked at density treatments in quadruplicate: (A) 40 shrimps m −2 , (B) 80 shrimps m −2 , and (C) 120 shrimps m −2. Our results showed the average final mass of shrimps had a slight reduction at the density 80 and 120 shrimps. However, it did not differ significantly between the treatments. The ultimate survival and productivity were higher in density 80 and 120 shrimps. The maximum biomass productivity occurred at the treatment with density 120 shrimps. The aquaponics recirculation system using constructed semi-dry wetlands with lettuce adequately treated the water at the densities tested. Various water quality parameters were deemed suitable for shrimp culture, but for lettuce not, especially the temperature. The shrimp density was inappropriate which limited the system to accumulate and increase the concentration of nutrients to vegetables with lessening the yield. Nonetheless, the system with higher density has higher nutrient content that plants demonstrated significantly better growth and yield. The results showed the potential use of organics waste generated in a family lettuce hydroponic production, but for a commercial production is indicated supplementation with nutrients like calcium, magnesium, and potassium in the water.

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“…Na literatura existem vários estudos com a cultura da alface sub estresse salino (Dias et al, 2011;Paulus et al, 2012;Guimarães et al, 2016;Soares et al, 2016), e todos estes autores observaram redução na massa fresca das plantas em função da salinidade.…”

Section: Resultsunclassified

Aplicação Exógena De Ácido Salicílico E Estresse Salino Em Alface Crespa Cultivada Em Sistema Semihidropônico

Costa¹,

Maia²,

Lima³

et al. 2017

Anais Do IV Inovagri International Meeting - 2017

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RESUMO:Alfaces são hortaliças folhosas de grande consumo na alimentação humana, sendo produzida por pequenos e médios produtores rurais que, em muitos casos, não dispõe PALAVRA CHAVE: Lactuca sativa, estresse salino, nutrição mineral. EXOGENOUS APPLICATION OF SALICYLIC ACID AND SALINE STRESS IN LETTUCE CRISPED CULTIVATED IN A SEMI-HYDROPONIC SYSTEMABSTRACT: Lettuces are hardwoods vegetables for human consumption and are produced by small and medium-sized rural producers, who in many cases do not have good quality water for irrigation. Therefore, the objective of this work was to evaluate the effect of salicylic acid on the cultivar of crisp lettuce, cv. Vera under conditions of saline stress. The experiment was carried out in a greenhouse at the UFERSA, Mossoró, RN, Brazil. Developed 1 Graduando(

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Use of fish-farming wastewater in lettuce cultivation

Cited by 8 publications

References 13 publications

Effect of Saline Stress and Calcium Nitrate on Lettuce Grown on Coconut Fiber

Effect of Saline Stress and Calcium Nitrate on Lettuce Grown on Coconut Fiber

Performance of an aquaponics system using constructed semi-dry wetland with lettuce (Lactuca sativa L.) on treating wastewater of culture of Amazon River shrimp (Macrobrachium amazonicum)

Aplicação Exógena De Ácido Salicílico E Estresse Salino Em Alface Crespa Cultivada Em Sistema Semihidropônico

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