Abstract
The purpose of this work was to study both the separate and combined effects of the liquid-phase biological (LPB) product and Fe 3 O 4 nanoparticles on the yield of potatoes of the Skarb variety, as well as on soil microflora. The biosynthesis of Fe 3 O4 nanoparticles was carried out using green tea extract and FeSO 4 ∙7H 2 O solution, concentration 0.1 mol/l. The effectiveness of the obtained LPB-Fe product was studied under field conditions against the background of NPK fertilizers application. The results of a three-year experiment (2020–2022) showed that when spraying plants at vegetative stage with a 1% LPB-Fe product, potato yield increased by 16.9%, and when treating tubers before planting – by 14.8% compared to the control. At the same time, when using LPB without the addition of Fe 3 O 4 nanoparticles, potato yield increased by 9.8% after foliar treatment and by 6.8% after tubers treatment, compared to the control. Based on the results of microbiological analysis, the coefficient of soil mineralization was calculated and the correlation of potato yield and its value was established. Varying concentrations of LPB-Fe preparation resulted in strong but multidirectional dependence of potato yield on the soil mineralization coefficient: both when treating tubers (regression equation y = 0.2639x – 39.9329 with a correlation coefficient r = 0.72) and when spraying potato plants (regression equation y = -0.2536x + 55.882 with correlation coefficient r = -0.77). In addition, during foliar treatment of potato plants with a 1% solution of Fe 3 O 4 nanoparticles, there was recorded a very strong inverse relationship between the yield and the number of nitrogen-transforming microorganisms (correlation coefficient r = -0.90, with the regression equation y = -0.0841x + 37.9421).
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Claims 7
Claim · model-written summary
Spraying potato plants at vegetative stage with a 1% LPB-Fe product increased potato yield by 16.9% compared with the control.
- Taxon
- potatoes
Solanum tuberosume0 - Material
- Skarbe0
- Organ / stage
- vegetative stagee1
- Treatment
- 1% LPB-Fe producte1
- Outcome
- potato yielde1
- Direction
- increasede1
- Value
- 16.9%e1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on the yield of potatoes of the Skarb variety”
e1“when spraying plants at vegetative stage with a 1% LPB-Fe product, potato yield increased by 16.9%”
e2“when treating tubers before planting – by 14.8% compared to the control”
Claim · model-written summary
Treating tubers before planting with the LPB-Fe product increased potato yield by 14.8% compared with the control.
- Taxon
- potatoesSolanum tuberosume0
- Material
- Skarbe0
- Treatment
- treating tubers before plantinge2
- Outcome
- potato yielde1
- Direction
- increasede1
- Value
- 14.8%e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on the yield of potatoes of the Skarb variety”
e1“when spraying plants at vegetative stage with a 1% LPB-Fe product, potato yield increased by 16.9%”
e2“when treating tubers before planting – by 14.8% compared to the control”
Claim · model-written summary
LPB without Fe3O4 nanoparticles applied as foliar treatment increased potato yield by 9.8% compared with the control.
- Taxon
- potatoesSolanum tuberosume0
- Material
- Skarbe0
- Treatment
- LPB without the addition of Fe 3 O 4 nanoparticlese3
- Outcome
- potato yielde3
- Direction
- increasede3
- Value
- 9.8%e3
- Qualifier
- after foliar treatmente3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on the yield of potatoes of the Skarb variety”
e3“when using LPB without the addition of Fe 3 O 4 nanoparticles, potato yield increased by 9.8% after foliar treatment and by 6.8% after tubers treatment, compared to the control”
Claim · model-written summary
LPB without Fe3O4 nanoparticles applied to tubers increased potato yield by 6.8% compared with the control.
- Taxon
- potatoesSolanum tuberosume0
- Material
- Skarbe0
- Treatment
- LPB without the addition of Fe 3 O 4 nanoparticlese3
- Outcome
- potato yielde3
- Direction
- increasede3
- Value
- 6.8%e3
- Qualifier
- after tubers treatmente3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on the yield of potatoes of the Skarb variety”
e3“when using LPB without the addition of Fe 3 O 4 nanoparticles, potato yield increased by 9.8% after foliar treatment and by 6.8% after tubers treatment, compared to the control”
Claim · model-written summary
Potato yield was positively associated with the soil mineralization coefficient when tubers were treated with LPB-Fe (r = 0.72).
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- treating tuberse4
- Outcome
- potato yielde4
- Direction
- increaseinferrede4
- Value
- r = 0.72e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on the yield of potatoes of the Skarb variety”
e4“Varying concentrations of LPB-Fe preparation resulted in strong but multidirectional dependence of potato yield on the soil mineralization coefficient: both when treating tubers (regression equation y = 0.2639x – 39.9329 with a correlation coefficient r = 0.72)”
Claim · model-written summary
Potato yield was negatively associated with the soil mineralization coefficient when plants were sprayed with LPB-Fe (r = -0.77).
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- spraying potato plantse5
- Outcome
- potato yielde4
- Direction
- decreaseinferrede5
- Value
- r = -0.77e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on the yield of potatoes of the Skarb variety”
e4“Varying concentrations of LPB-Fe preparation resulted in strong but multidirectional dependence of potato yield on the soil mineralization coefficient: both when treating tubers (regression equation y = 0.2639x – 39.9329 with a correlation coefficient r = 0.72)”
e5“when spraying potato plants (regression equation y = -0.2536x + 55.882 with correlation coefficient r = -0.77)”
Claim · model-written summary
Foliar treatment with a 1% solution of Fe3O4 nanoparticles showed a very strong inverse association between potato yield and the number of nitrogen-transforming microorganisms (r = -0.90).
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- a 1% solution of Fe 3 O 4 nanoparticlese6
- Interactor
- nitrogen-transforming microorganismse6other
- Outcome
- yielde6
- Direction
- decreaseinferrede6
- Value
- r = -0.90e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on the yield of potatoes of the Skarb variety”
e6“foliar treatment of potato plants with a 1% solution of Fe 3 O 4 nanoparticles, there was recorded a very strong inverse relationship between the yield and the number of nitrogen-transforming microorganisms (correlation coefficient r = -0.90”
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