One of the main concerns related to closed systems is the potential spread of root pathogens. With the recirculation of nutrient solutions.
Ozone treatment was tested for the efficacy against plant pathogen (Pythium), growth, and yield of cucumber crop grown in a hydroponic closed system during the summer season (June-August) 2022. Two nutrient solution feeding tanks were used one with ozone treatment and the other without ozone treatment in a randomized complete design (RCD) with four replications. The results showed significant (p < 0.05) differences were observed between the treatments in diseases infections with pythium diseases.
No significant (p < 0.05) differences were detected in chlorophyll content, as SPAD values and yield between the two treatments of cucumber statistically. Ozone-treated plants produced more yield 4.0 ton/gh.
S., Al-Rawahy & S., Al-Abri & S., Al-Hinai & A., Al-Abri & Al Mahrouqi, Seham & M., Al-Shmali & T., Al-Khatri & S., Al-Subhi. (2024). Response of Ozone Treatment on Disease Incidence, Dissolved Oxygen Levels, Growth and Yield of Cucumber Crop Grown in Hydroponics in Cooled Green House. Season: Summer (June-August) at DGALR, Rumais. Journal of Agricultural Science. 15. 85-85. DOI: 10.5539/jas.v15n3p85.
Source: Research Gate