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Influence of Plasma-Activated Water on Physical and Physical–Chemical Soil Properties

1
Faculty of AgriScience, Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic
2
Faculty of Chemistry, Institute of Physical and Applied Chemistry, Brno University of Technology, Purkyňova 118, 61200 Brno, Czech Republic
3
Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 10, 61600 Brno, Czech Republic
*
Authors to whom correspondence should be addressed.
Water 2020, 12(9), 2357; https://doi.org/10.3390/w12092357
Received: 29 June 2020 / Revised: 4 August 2020 / Accepted: 20 August 2020 / Published: 22 August 2020
Recently, the bactericidal and fungicidal effects of plasma-activated water (PAW) have been confirmed for its application in agriculture. Although the PAW application is beneficial in plant growth, no information is available about processes induced by PAW in soil. This paper gives the first experimental results about PAW’s influence on selected physical and physical–chemical properties of soil. PAW was prepared using the dielectric barrier discharge (DBD) operating in the multistreamer mode at a frequency of 11 kHz. The total energy consumption was 60 J/ml. The obtained results show minimal changes in the natural water evaporation from the soil exposed to PAW, slower tap water absorption if a higher amount of PAW (16 doses per 10 ml to 90 g of the soil) is applied, as well as water retention in the soil of over 30%. The soil pH remains in the neutral range of values even at the highest applied PAW amount of 1.7 weight of soil, which represents the best conditions with respect to the plant growth. Thus, we can conclude that the PAW application, even at high amounts, has no negative influence on the physical and physical–chemical properties of soil and it can be safely applied in sustainable, environmentally friendly agriculture. View Full-Text
Keywords: plasma-activated water; dielectric barrier discharge; reactive oxygen species; reactive nitrogen species; soil pH; water retention; water absorption; plasma agriculture plasma-activated water; dielectric barrier discharge; reactive oxygen species; reactive nitrogen species; soil pH; water retention; water absorption; plasma agriculture
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MDPI and ACS Style

Šimečková, J.; Krčma, F.; Klofáč, D.; Dostál, L.; Kozáková, Z. Influence of Plasma-Activated Water on Physical and Physical–Chemical Soil Properties. Water 2020, 12, 2357. https://doi.org/10.3390/w12092357

AMA Style

Šimečková J, Krčma F, Klofáč D, Dostál L, Kozáková Z. Influence of Plasma-Activated Water on Physical and Physical–Chemical Soil Properties. Water. 2020; 12(9):2357. https://doi.org/10.3390/w12092357

Chicago/Turabian Style

Šimečková, Jana; Krčma, František; Klofáč, Daniel; Dostál, Lukáš; Kozáková, Zdenka. 2020. "Influence of Plasma-Activated Water on Physical and Physical–Chemical Soil Properties" Water 12, no. 9: 2357. https://doi.org/10.3390/w12092357

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