Ozone Microbubbles as Disinfection in Nutrient Solution and Their Effects on Composition of Fertilizer and Growth of Cultivated Plants

Kobayashi, Fumiyuki; Ikeura, Hiromi; Ohsato, Shuichi; Goto, T.; Tamaki, Masahiko

doi:10.13031/2013.42274

Cited by 9 publications

(3 citation statements)

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“…Considering O 3 supplies, Kobayashi et al [41], using O 3 microbubbles at 0.2 ppm in the nutrient solution, reported no adverse effects on lettuce growth. Similar results were reported by Zheng et al [42] (2-4 mg L −1 ) in lettuce and by Ohashi-Kaneko et al [43] (0-10 mg L −1 ) in tomato plants.…”

Section: Discussionmentioning

confidence: 99%

Effect of Ozonated Fertigation in Pepper Cultivation under Greenhouse Conditions

et al. 2021

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Ozone has a high oxidizing power avoiding the presence of residues, so it is a good candidate for use in organic farming. However, its application in fertigation has been little studied. Two experiments were conducted simultaneously to check the aims of this work. The aim of the first experiment was to study pepper response under the nutrient solution supply and the application of O3 and its interactions, and the aim of the second experiment was to determine the optimal dosage of O3 to be supplied, from the point of view of plant development and nutritional and physiological status in both experiments. We conclude that O3 supply via fertigation increased pepper biomass production. According to the results obtained, we recommend that the optimal dosage of O3 in pepper plants be from 0.18 to 0.36 mg L−1 due to its higher associated biomass production. Under these dosages, pepper plants showed a higher leaf area and higher photosynthetic pigment concentration. Similarly, under these dosages, N, P, and K plant uptake were higher, allowing a higher synthesis of bioassimilates.

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Section: Discussionmentioning

confidence: 99%

Effect of Ozonated Fertigation in Pepper Cultivation under Greenhouse Conditions

et al. 2021

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“…However, there are only a few reports on the use of microbubbles in agriculture. These include sterilization of cultures using ozone microbubbles (Kobayashi et al, 2012), increasing lettuce growth using air microbubbles in hydroponic cultivation (Park and Kurata, 2009), and increasing the growth of fruits and vegetables using ozone microbubbles (Ohashi-Kaneko et al, 2009). Therefore, further investigation is required on the introduction of microbubbles in the field of agriculture.…”

Section: Introductionmentioning

confidence: 99%

Salinity Stress Relief of Lettuce through Microbubbles Generated in Hydroponic Cultivation

Noh,

Ahn,

Fujiwara

et al. 2022

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This study aimed to evaluate the effects of microbubbles on the growth of lettuce in hydroponic cultivation under high-salinity conditions. Lettuce (Lactuca sativa L. 'Cos lettuce') seeds were sown and then transplanted at 3 weeks after germination in a deep flow technique (DFT) hydroponic system. A 3% aqueous solution of NaCl was prepared to mimic the salinity of seawater. For microbubble treatment, 26 uniform seedlings were grown in two DFT systems, i.e., 13 seedlings in each system, and a microbubble generator was installed. A chiller and heater were installed on one side to maintain the water temperature. Microbubbles were generated throughout the experiment; the plants were grown for a total of 2 weeks, during which the pH, electrical conductivity (EC), and dissolved oxygen (DO) of the water did not change significantly compared to the control. Among the growth parameters, there were no differences in leaf length and width, but lettuce grown in the presence of microbubbles showed a significantly higher leaf number and longer root length. In addition, the shoot fresh weight and root fresh weight of the treated lettuce were 32.6% and 56% higher, respectively, than those grown in the control treatment. The dry weight of shoots and roots increased by 42% and 226%, respectively, in the microbubble treatment. These results suggest that microbubbles generated in the nutrient solution can increase the growth of salt-stressed plants in seawater-based hydroponic cultivation.

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“…melonis spore and Pectobacterium carotovorum subsp. carotovorum in nutrient solution for hydroponic culture ( Kobayashi et al, 2011a , 2011b , 2011c , 2012 ). Furthermore, effective disinfection by O 3 MB has been reported by other researchers ( Chuajedton et al, 2015 ; Inatsu et al, 2011 ), although it is still not clear about the exact mechanism of disinfection by O 3 MB.…”

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confidence: 99%

Disinfection by Ozone Microbubbles Can Cause Morphological Change of Fusarium oxysporum f. sp. melonis Spores

et al. 2018

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Ozone Microbubbles as Disinfection in Nutrient Solution and Their Effects on Composition of Fertilizer and Growth of Cultivated Plants

Cited by 9 publications

References 0 publications

Effect of Ozonated Fertigation in Pepper Cultivation under Greenhouse Conditions

Effect of Ozonated Fertigation in Pepper Cultivation under Greenhouse Conditions

Salinity Stress Relief of Lettuce through Microbubbles Generated in Hydroponic Cultivation

Disinfection by Ozone Microbubbles Can Cause Morphological Change of Fusarium oxysporum f. sp. melonis Spores

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