Nutrient supply of plants in aquaponic systems

Bittsanszky, Andrâs; Uzinger, Nikolett; Gyulai, Gábor; Mathis, Alex; Junge, Ranka; Villarroel, Morris; Kotzen, Benz; Kőmíves, Tamás

doi:10.19040/ecocycles.v2i2.57

Cited by 78 publications

(60 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They concluded that the optimal water circulation period was 12 h day -1 . Although the water N content detected in this study was lower than the reported optimal values for hydroponics (Pantanella et al, 2012;Bittsanszky et al, 2016;Delaide et al, 2016), this did not have a significant effect on crop yield.…”

Section: Effects Of Water Recirculation Periodcontrasting

confidence: 75%

Hydroponic systems and water management in aquaponics: a review

et al. 2017

Self Cite

View full text Add to dashboard Cite

Aquaponics (AP), the integrated multi-trophic fish and plants production in quasi-closed recirculating system, is one of the newest sustainable food production systems. The hydroponic component of the AP directly influences water quality (in turn influencing fish growth and health), and water consumption (through evapotranspiration) of the entire system. In order to assess the role of the design and the management of the hydroponic component on the overall performance, and water consumption of the aquaponics, 122 papers published from 1979 to 2017 were reviewed. Although no unequivocal results were found, the nutrient film technique appears in several aspects less efficient than medium-based or floating raft hydroponics. The best system performance in terms of fish and plant growth, and the highest nutrient removal from water was achieved at water flow between 0.8 L min -1 and 8.0 L min -1 . Data on water consumption of aquaponics are scarce, and no correlation between the ratio of hydroponic unit surface/fish tank volume and the system water loss was found. However, daily water loss was positively correlated with the hydroponic surface/fish tank volume ratio if the same experimental conditions and/or systems were compared. The plant species grown in hydroponics influenced the daily water loss in aquaponics, whereas no effect was exerted by the water flow (reciprocating flood/drain cycle or constant flow) or type (medium-based, floating or nutrient film technique) of hydroponics.

show abstract

Section: Effects Of Water Recirculation Periodcontrasting

confidence: 75%

Hydroponic systems and water management in aquaponics: a review

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…According Bittsanskzky et al (2016), most plant nutrients were at significantly lower concentrations in the research aquaponics systems as compared with the standard hydroponic solutions. The differences were highest in the case of Fe 2+ and Mn 2+ (with ratios of 68.5 and 138.7, respectively).…”

Section: Discussionmentioning

confidence: 87%

The effect of stocking density ratio of fish on water plant productivity in aquaponics culture system

et al. 2017

View full text Add to dashboard Cite

Abstract. Andriani Y, Dhahiyat Y, Zahidah, Zidni I. 2016. The effect of stocking density ratio of fish on water plant productivity in aquaponics culture system. Nusantara Bioscience 8: xxxx. This study aims to determine the productivity of water plants at various stocking density ratios in the aquaponic culture system. This study is conducted experimentally using the Completely Randomized Design with the differences in the treatment of stocking density ratio, each repeated five times. The treatments of the stocking density ratio of both the catfish fry and the Nile tilapia fry include: A (75:75 fry/m 2 ), B (100:50 fry/m 2, and C (125:25 fry/m 2 ). The observed parameters are 1) plant productivity including measuring the growth of water spinach and growth rate, covering weight gain, stem length and number of leaves, and 2) water quality, including dissolved oxygen (DO), nitrate and phosphate. The data of plant productivity is analyzed descriptively while the water quality is analyzed using ANOVA. The result of this study shows that the stocking density ratio significantly affects the productivity of water plants and the water quality of the media. The highest productivity of water spinach productivity occurs at the stocking density ratio of 75 catfish fry/m 2 : 75 Nile tilapia fry m 2 , at which the average stem length is 59.14 cm, average number of leaves is 13.67, and the harvest weight is 465 g. Fish stocking density ratio also affects the quality of water, where the synergy between fish farming and water plant growing results in the better water quality compared to fish farming without water plant. The highest quality of water is achieved at the stocking density ratio of 100 catfish fry/m 2: 50 Nile tilapia fry/m 2 .

show abstract

“…In AP, the levels of nutrients are often lower than those in conventional hydroponics [20]; nevertheless, comparable levels of productivity have been reported. This poses the question whether "organically" derived nutrients are more effective than nutrients derived from readily soluble mineral fertilizers [20,21].…”

Section: Introductionmentioning

confidence: 96%

Nutrient Management in Aquaponics: Comparison of Three Approaches for Cultivating Lettuce, Mint and Mushroom Herb

et al. 2018

Self Cite

View full text Add to dashboard Cite

Abstract:Nutrients that are contained in aquaculture effluent may not supply sufficient levels of nutrients for proper plant development and growth in hydroponics; therefore, they need to be supplemented. To determine the required level of supplementation, three identical aquaponic systems (A, B, and C) and one hydroponic system (D) were stocked with lettuce, mint, and mushroom herbs. The aquaponic systems were stocked with Nile tilapia. System A only received nutrients derived from fish feed; system B received nutrients from fish feed as well as weekly supplements of micronutrients and Fe; system C received the same nutrients as B, with weekly supplements of the macronutrients, P and K; in system D, a hydroponic inorganic solution containing N, Ca, and the same nutrients as system C was added weekly. Lettuce achieved the highest yields in system C, mint in system B, and mushroom herb in systems A and B. The present study demonstrated that the nutritional requirements of the mint and mushroom herb make them suitable for aquaponic farming because they require low levels of supplement addition, and hence little management effort, resulting in minimal cost increases. While the addition of supplements accelerated the lettuce growth (Systems B, C), and even surpassed the growth in hydroponic (System C vs. D), the nutritional quality (polyphenols, nitrate content) was better without supplementation.

show abstract

Nutrient supply of plants in aquaponic systems

Cited by 78 publications

References 6 publications

Hydroponic systems and water management in aquaponics: a review

Hydroponic systems and water management in aquaponics: a review

The effect of stocking density ratio of fish on water plant productivity in aquaponics culture system

Nutrient Management in Aquaponics: Comparison of Three Approaches for Cultivating Lettuce, Mint and Mushroom Herb

Contact Info

Product

Resources

About