Hydroponic systems: exploring the balance between co-cultivation of Chlorella vulgaris and Swiss chard (Beta vulgaris L. subsp. cicla)

Seman, Vladimira; Jafari, Timea Hajnal; Grabić, Jasna; Đurić, Simonida; Stamenov, Dragana

doi:10.1007/s10811-021-02673-z

Cited by 11 publications

(8 citation statements)

References 41 publications

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“…Since crops and microalgae are highly similar in terms of nutrient requirements, interspecific competition is theoretically bound to occur when cultured in the same system. The study did not show any significant competition, and on the contrary, the accumulation of the crop was enhanced [3,18]. However, in the results of the Özer Uyar experiment it was shown that the bioaccumulation of the control group, which was cultured only with microalgae, was higher than that of the microalgae in the co-culture system [6,13].…”

Section: Competitive Situationmentioning

confidence: 82%

Interactions between Crop and Microalgae in Nutrient Utilization in Crop-microalgae Co-culture

Xiao

2024

BIO Web Conf.

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In order to conserve agricultural land and make the best use of environmental resources, scientists have developed hydroponic systems for growing crops and vegetables. At the same time, it has been found that microalgae and crops can interact on the basis of hydroponic systems. However, research on the nutrient utilization aspect of it is still very limited. In this paper, we investigate the nutrient utilization of crops and algae in a co-culture system, thereby contributing to the improvement of crop yields. Nutrient utilization in co-culture systems includes nutrient competition between crops and microalgae, the effect of CO2 produced by crop roots on microalgae, the promotion of nutrient uptake by microalgae in crops and the stimulation of root growth, and the change in system pH induced by nutrient uptake in crops and microalgae. By analyzing these aspects, it plays a key role for both algae and crops to achieve higher yields and good growth conditions in the co-culture system.

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Section: Competitive Situationmentioning

confidence: 82%

Interactions between Crop and Microalgae in Nutrient Utilization in Crop-microalgae Co-culture

Xiao

2024

BIO Web Conf.

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“…Algae treatment of waste streams is one way in which the environmental impact of industrial scale CEA systems can be mitigated. While it has been reported that growing algae in hydroponic systems can foster a beneficial symbiotic relationship between the plants and the algae (e.g., Žunić et al, 2022), we avoided algal contaminating in this study by applying a low concentration hydrogen peroxide solution, which would have slowly degraded away during the growing process. This study has shown that by using a postharvest treatment of algae, N and P in waste streams can be reduced significantly before flushing.…”

Section: Discussionmentioning

confidence: 99%

Integration of algae treatment with hydroponic crop waste to reduce impact of nutrient waste streams

Cowan

White

Olszewska

et al. 2022

J of Sust Agri & Env

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Introduction Controlled environment agriculture (CEA) is expanding globally, but little is known about nutrient losses within these systems, or how to reduce subsequent pollution. This experiment investigates the potential to treat wastewater from hydroponically produced lettuce via the application of algae. Materials and Methods A total of 132 heads of lettuce were produced in the 4‐layer nutrient film technique (NFT) vertical farming rack. Waste from the hydroponic system was used to cultivate naturally occurring algae. Nitrogen (N), phosphorus (P) and other trace elements (Ca, Co, Cu, Fe, K, Mg, Mn, Mo, Ni and Zn) were measured at each stage of production. Results Overall the nutrient use efficiency (NUE) of applied mineral nitrogen (N) and phosphorus (P) was 88.7% and 59.4%. After algae treatment of waste streams the full system NUE of N and P was 99.5% and 95.0% respectively, thus significantly reducing waste heading for sewage. It was found that the crops consumed large quantities of Ca, Cu, Fe and Zn from the rooting sponges used in this experiment, which may have become available due to mineralization and the presence of slightly acidic fertiliser solution. The overall waste produced by the rooting sponge is of concern regarding the full NUE of the system, accounting for approximately 53% and 6% of the total N and P input into the system. Conclusions This study highlights that treating wastewater streams from controlled environment agriculture (CEA) methods such as hydroponics with algae is successful and easy to achieve with little effort. Future efforts by researchers and the CEA industry to better manage nutrient streams is recommended to improve the environmental credentials of developing CEA systems.

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“…Microgreen and babygreen plants are grown with light sources, but sprouts do not require light sources . The light duration of 6–8 h for rice grass, 6 h for barley grass, 6 h for oat grass, 12 h for wheat grass, 12 h for jowar grass, 12–16 h for mint, 10–12 h for basil, 6–8 h for rosemary, 8 h for sage, 6–8 h for oregano, 6 h for amaranth, 8 h for beets, 8–10 h for chard, 6 h for quinoa, 12 h for spinach, 6–8 h for chives, 10–12 h for garlic, 12–14 h for leek, 12 h for onion, 12–16 h for carrot, 4 h for celery, 6–8 h for dill, 6 h for fennel, 6 h for cabbage, 6–8 h for cauliflower, 14–16 h for broccoli, 6 h for radish, 6–8 h for aster cress, 14–18 h for mustard, 12–14 h for cucumber, 8–12 h for melons, 14 h for squash, 4–9 h for endive, 14 h for lettuce, 12–13 h for beans, 12 h for welsh onion, 12 h for long green onion, 14–16 h for red swiss chard, 12 h for buckwheat, 16 h for sunflower, 8–12 h for maize grass, 16 h for sunflower and 6–8 h for linseed is essential for microgreen plant production.…”

Section: Factors Affecting In Microgreen Plant Production In Soilless...mentioning

confidence: 99%

Factors Affecting Production, Nutrient Translocation Mechanisms, and LED Emitted Light in Growth of Microgreen Plants in Soilless Culture

Sharma,

Hazarika,

Heisnam

et al. 2023

ACS Agric. Sci. Technol.

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Microgreens or vegetable greens are just germinated plants harvested once the cotyledon leaves develop with one set of true leaves, and they are important as a nutrition supplement. Soilless culture of microgreens induces growth and nutrient transport with distinct mechanisms in the microgreen plant. The interventions of biofortification and nanotechnology have improved nutrient content, growth, and shelf life of microgreen plants. Water based culture and substrate based culture promote growth of different varieties of microgreen plants in a closed system. Biostimulants are enriched in sprouts and microgreen plants through biofortification methods: the root/nutrient solution method, fertigation method, and foliar spray method. The nutrient dynamics are evaluated through the Mechanistic Physiological model with a Machine Learning model in microgreen plants. Their disease resistance responses are regulated by the aryl hydrocarbon receptor (AhR) pathway. Distinct light wavelengths of light emitting diodes (LEDs) initiate cellular, biochemical, and molecular processes in microgreen plants. Microbial activities in growth media, regrowth of plants after first harvesting, the effect of cold water treatment, the storage system, the shelf life, and wilting problems in the microgreen production system require detailed study. The anatomy and molecular mechanisms of morphological growth also require investigation in microgreen plants.

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Hydroponic systems: exploring the balance between co-cultivation of Chlorella vulgaris and Swiss chard (Beta vulgaris L. subsp. cicla)

Cited by 11 publications

References 41 publications

Interactions between Crop and Microalgae in Nutrient Utilization in Crop-microalgae Co-culture

Interactions between Crop and Microalgae in Nutrient Utilization in Crop-microalgae Co-culture

Integration of algae treatment with hydroponic crop waste to reduce impact of nutrient waste streams

Factors Affecting Production, Nutrient Translocation Mechanisms, and LED Emitted Light in Growth of Microgreen Plants in Soilless Culture

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