Plasma agriculture: Review from the perspective of the plant and its ecosystem

Ranieri, Pietro; Sponsel, Nicholas L.; Kizer, Jon; Rojas-Pierce, Marcela; Hernández, Ricardo; Gatiboni, Luciano Colpo; Grunden, Amy M.; Stapelmann, Katharina

doi:10.1002/ppap.202000162

Cited by 127 publications

(110 citation statements)

References 168 publications

(307 reference statements)

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“…Non-thermal plasma treatment is known to decrease the pH of both the substrate and nutrient solution [ 33 ], which can be strategic for the maintenance of an optimal pH level in the root zone, especially in those substrates that show a natural tendency to alkalinization. In the present work, pH was adjusted before irrigation so there would be no differences between the untreated and NTP-treated nutrient solutions.…”

Section: Discussionmentioning

confidence: 99%

“…Despite the postulated role of NTP as a replacement of N fertilizers [ 33 ], the leaf organic N of plants grown in peat under an LF regime was lower in those supplemented with NTP-treated solution than in others. However, nitric N was generally increased by NTP treatment.…”

Section: Discussionmentioning

confidence: 99%

“…However, nitric N was generally increased by NTP treatment. Indeed, nitrates are the main nitrogen form produced when using NTP to treat water [ 33 ]. Moreover, nitrates were higher in percolating nutrient solution of NTP-treated plants than in control ones, under a HF regime, supporting an increase of these molecules following NTP application.…”

Section: Discussionmentioning

confidence: 99%

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Non-Thermal Plasma Treatment Influences Shoot Biomass, Flower Production and Nutrition of Gerbera Plants Depending on Substrate Composition and Fertigation Level

Cannazzaro

Traversari

Cacini

et al. 2021

Plants

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Non-thermal plasma (NTP) appears a promising strategy for supporting crop protection, increasing yield and quality, and promoting environmental safety through a decrease in chemical use. However, very few NTP applications on containerized crops are reported under operational growing conditions and in combination with eco-friendly growing media and fertigation management. In this work, NTP technology is applied to the nutrient solution used for the production of gerbera plants grown in peat or green compost, as an alternative substrate to peat, and with standard or low fertilization. NTP treatment promotes fresh leaf and flower biomass production in plants grown in peat and nutrient adsorption in those grown in both substrates, except for Fe, while decreasing dry plant matter. However, it causes a decrease in the leaf and flower biomasses of plants grown in compost, showing a substrate-dependent effect under a low fertilization regime. In general, the limitation in compost was probably caused by the high-substrate alkalinization that commonly interferes with gerbera growth. Under low fertilization, a reduction in the photosynthetic capacity further penalizes plant growth in compost. A lower level of fertilization also decreases gerbera quality, highlighting that Ca, Mg, Mn, and Fe could be reduced with respect to standard fertilization.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Non-Thermal Plasma Treatment Influences Shoot Biomass, Flower Production and Nutrition of Gerbera Plants Depending on Substrate Composition and Fertigation Level

Cannazzaro

Traversari

Cacini

et al. 2021

Plants

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“…For this reason, it is necessary to look for new, ecologically and economically advantageous solutions that would ensure better germination of seeds of economically important crops and thus a higher yield on a smaller area. An effective and promising method seems to be the application of non-thermal plasma in agricultural practice [ 1 , 2 , 3 ]. In laboratory conditions, plasma is generated by ionization of molecule, atoms in different working gases by heating or applying of electric field.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Impact of Cold Atmospheric Pressure Plasma on Soybean Seed Germination

Švubová

Slováková

Holubová

et al. 2021

Plants

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The present study aims to define the effects of Cold Atmospheric Pressure Plasma (CAPP) exposure on seed germination of an agriculturally important crop, soybean. Seed treatment with lower doses of CAPP generated in ambient air and oxygen significantly increased the activity of succinate dehydrogenase (Krebs cycle enzyme), proving the switching of the germinating seed metabolism from anoxygenic to oxygenic. In these treatments, a positive effect on seed germination was documented (the percentage of germination increased by almost 20% compared to the untreated control), while the seed and seedling vigour was also positively affected. On the other hand, higher exposure times of CAPP generated in a nitrogen atmosphere significantly inhibited succinate dehydrogenase activity, but stimulated lactate and alcohol dehydrogenase activities, suggesting anoxygenic metabolism. It was also found that plasma exposure caused a slight increment in the level of primary DNA damage in ambient air- and oxygen-CAPP treatments, and more significant DNA damage was found in nitrogen-CAPP treatments. Although a higher level of DNA damage was also detected in the negative control (untreated seeds), this might be associated with the age of seeds followed by their lower germination capacity (with the germination percentage reaching only about 60%).

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“…The review by Ranieri et al [ 2 ] details the role of nonthermal plasma in the development of plants from seeds to crops, and it provides the context to design plasma‐based fertilization strategies to address the needs of plants and their ecosystem. Next, several research papers deal with plasma activation of air and water for agricultural purposes, first from general scientific points of view, [ 3–5 ] but then also related to specific applications like toxin removal, [ 6 ] decontamination of crop seeds, [ 7 ] and viniculture.…”

mentioning

confidence: 99%