Hydroponic Food Production

Resh, Howard M.

doi:10.1201/9781003133254

Cited by 85 publications

(108 citation statements)

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“…Although hazenite contains K, one of the main nutrients for plants, it also contains Na, which might be toxic at high concentrations. Na concentration in the nutrient solutions assayed reached up to 32 mg/L, whilst it is not recommended to exceed 150 mg Na + /L, especially when there is Cl − in the solution [ 27 ]. Na + migration to FS may be considered as an advantage, since lower Na + content will be present in the final DS for use in hydroponics.…”

Section: Resultsmentioning

confidence: 99%

“…The main components of these waters are N, P and K ( Table 2 ). The specific contents will depend on the type of crop and the applied environmental conditions [ 27 ]. This type of controlled cultivation may avoid the loss of crops due to natural events such as high temperature, prolonged periods of rain, drought and storms, allowing for a more stable production [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

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Second-Generation Magnesium Phosphates as Water Extractant Agents in Forward Osmosis and Subsequent Use in Hydroponics

et al. 2023

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The recovery of nutrients from wastewater streams for their later use in agricultural fertilization is an interesting approach. Wastewater recovered magnesium phosphate (MgP) salts were used in a forward osmosis (FO) system as draw solution in order to extract water and to produce a nutrient solution to be used in a hydroponic system with lettuces (Lactuca sativa, L.). Owing to the low solubility of the MgP salts (i.e., struvite, hazenite and cattiite) in water, acid dissolution was successfully tested using citric and nitric acids to reach pH 3.0. The dilution by FO of the dissolved salts reached levels close to those needed by a hydroponic culture. Ion migration through the membrane was medium to high, and although it did not limit the dilution potential of the system, it might decrease the overall feasibility of the FO process. Functional growth of the lettuces in the hydroponic system was achieved with the three MgP salts using the recovered water as nutrient solution, once properly supplemented with nutrients with the desired concentrations. This is an innovative approach for promoting water reuse in hydroponics that benefits from the use of precipitated MgP salts as a nutrient source.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Second-Generation Magnesium Phosphates as Water Extractant Agents in Forward Osmosis and Subsequent Use in Hydroponics

et al. 2023

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“…or under a shade. These physical barriers reduce insect pest incidence and facilitate organic intervention when required (Resh, 2008). This affords the plant the best opportunity for growth and development, hence consequently higher output and yield.…”

Section: Advantages Of Aquaponics Production Systemmentioning

confidence: 99%

Aquaponics production system: A review of historical perspective, opportunities, and challenges of its adoption

Okomoda

Oladimeji

Solomon

et al. 2022

Food Science & Nutrition

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Aquaculture being the fastest-growing food-producing sector in the world employs different kinds of production systems (FAO, 2019). Among these systems, aquaponics is considered one of the most efficient and environmentally sustainable methods of the 21st century (FAO, 2014;; it is simply the combined culture of fish and plants in a recirculating system. Mainly, recirculatory aquaculture systems are designed to raise large quantities of fish in relatively small volumes of water by treating the water to remove toxic waste products and reuse again for fish culture (Rakocy & Hargreaves, 1993;Timmons et al., 2010;Verdegem, 2013). Although the nitrifying bacteria convert toxic ammonia and nitrite into less toxic nitrate in specialized filters called biofilters, however, if there are disturbances to the biofilter or ammonia production that exceeds the capacity for the

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“…Therefore, to improve smart agriculture, we propose using artificial intelligence (AI) with machine learning 9 , 10 . Practical AI are already in operation in plant factories such as hydroponics 11 . For example, it is useful when cultivating in artificially controlled environments to optimize the water and air temperature and light intensity.…”

Section: Introductionmentioning

confidence: 99%

Shape classification technology of pollinated tomato flowers for robotic implementation

Hiraguri

Kimura

Endo

et al. 2023

Sci Rep

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Three pollination methods are commonly used in the greenhouse cultivation of tomato. These are pollination using insects, artificial pollination (by manually vibrating flowers), and plant growth regulators. Insect pollination is the preferred natural technique. We propose a new pollination method, using flower classification technology with Artificial Intelligence (AI) administered by drones or robots. To pollinate tomato flowers, drones or robots must recognize and classify flowers that are ready to be pollinated. Therefore, we created an AI image classification system using a machine learning convolutional neural network (CNN). A challenge is to successfully classify flowers while the drone or robot is constantly moving. For example, when the plant is shaking due to wind or vibration caused by the drones or robots. The AI classifier was based on an image analysis algorithm for pollination flower shape. The experiment was performed in a tomato greenhouse and aimed for an accuracy rate of at least 70% for sufficient pollination. The most suitable flower shape was confirmed by the fruiting rate. Tomato fruit with the best shape were formed by this method. Although we targeted tomatoes, the AI image classification technology is adaptable for cultivating other species for a smart agricultural future.

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Hydroponic Food Production

Cited by 85 publications

References 0 publications

Second-Generation Magnesium Phosphates as Water Extractant Agents in Forward Osmosis and Subsequent Use in Hydroponics

Second-Generation Magnesium Phosphates as Water Extractant Agents in Forward Osmosis and Subsequent Use in Hydroponics

Aquaponics production system: A review of historical perspective, opportunities, and challenges of its adoption

Shape classification technology of pollinated tomato flowers for robotic implementation

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