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A biological method of including mineralized human liquid and solid wastes into the mass exchange of bio-technical life support systems / S. A. Ushakova [et al.] // Advances in Space Research. - 2012. - Vol. 50, Is. 7. - P932-940, DOI 10.1016/j.asr.2012.05.023 . - ISSN 0273-1177
Кл.слова (ненормированные):
Bio-technical life support system -- Conveyor-grown uneven-aged communities of wheat and Salicornia -- Utilization of human wastes -- Age groups -- Biological methods -- Dry weight -- Expanded clay -- Harvest index -- Human waste -- Leafy vegetables -- Liquid wastes -- Mass exchange -- Mineral element -- Nutrient solution -- Plant communities -- Salicornia europaea -- Salt content -- Time interval -- Uneven-aged -- Water culture -- Wheat biomass -- Conveyors -- Incineration -- Irrigation -- Minerals -- Nutrients -- Plants (botany) -- Productivity -- Sodium chloride -- Waste incineration -- Waste utilization -- Liquids
Аннотация: The main obstacle to using mineralized human solid and liquid wastes as a source of mineral elements for plants cultivated in bio-technical life support systems (BLSS) is that they contain NaCl. The purpose of this study is to determine whether mineralized human wastes can be used to prepare the nutrient solution for long-duration conveyor cultivation of uneven-aged wheat and Salicornia europaea L. plant community. Human solid and liquid wastes were mineralized by the method of "wet incineration" developed by Yu. Kudenko. They served as a basis for preparing the solutions that were used for conveyor-type cultivation of wheat community represented by 5 age groups, planted with a time interval of 14 days. Wheat was cultivated hydroponically on expanded clay particles. To reduce salt content of the nutrient solution, every two weeks, after wheat was harvested, 12 L of solution was removed from the wheat irrigation tank and used for Salicornia europaea cultivation in water culture in a conveyor mode. The Salicornia community was represented by 2 age groups, planted with a time interval of 14 days. As some portion of the nutrient solution used for wheat cultivation was regularly removed, sodium concentration in the wheat irrigation solution did not exceed 400 mg/L, and mineral elements contained in the removed portion were used for Salicornia cultivation. The experiment lasted 4 months. The total wheat biomass productivity averaged 30.1 gВ·m -2В·day -1, and the harvest index amounted to 36.8%. The average productivity of Salicornia edible biomass on a dry weight basis was 39.3 gВ·m -2В·day -1, and its aboveground mass contained at least 20% of NaCl. Thus, the proposed technology of cultivation of wheat and halophyte plant community enables using mineralized human wastes as a basis for preparing nutrient solutions and including NaCl in the mass exchange of the BLSS; moreover, humans are supplied with additional amounts of leafy vegetables. В© 2012 COSPAR. Published by Elsevier Ltd. All rights reserved.

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Держатели документа:
Institute of Biophysics SB RAS, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian State Technological University, 82, Mir Avenue, Krasnoyarsk 660049, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.A.; Tikhomirov, A.A.; Tikhomirova, N.A.; Kudenko, Y.A.; Litovka, Y.A.; Anishchenko, O.V.

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Use of human wastes oxidized to different degrees in cultivation of higher plants on the soil-like substrate intended for closed ecosystems / A. A. Tikhomirov [et al.] // Advances in Space Research. - 2010. - Vol. 46, Is. 6. - P744-750, DOI 10.1016/j.asr.2010.02.024 . - ISSN 0273-1177
Кл.слова (ненормированные):
Life support systems -- Microflora -- Mineralized human wastes -- Phototrophic unit -- Wet incineration -- Alternating electromagnetic field -- Bioregenerative life support systems -- Degree of oxidations -- Denitrifying microorganisms -- Growth and development -- Higher plants -- Human waste -- Life support systems -- Mass exchange -- Microbiotas -- Microflora -- Microscopic fungi -- Mineralized human wastes -- Nutrient solution -- Oxidation level -- Phytopathogenic bacteria -- Plant productivity -- Soil-like substrate -- Wheat plants -- Biomolecules -- Electromagnetic fields -- Irrigation -- Magnetic field effects -- Metabolism -- Metabolites -- Oxidation -- Plants (botany) -- Soils -- Solvent extraction -- Wastes -- Waste incineration
Аннотация: To close mass exchange loops in bioregenerative life support systems more efficiently, researchers of the Institute of Biophysics SB RAS (Krasnoyarsk, Russia) have developed a procedure of wet combustion of human wastes and inedible parts of plants using H2O2 in alternating electromagnetic field. Human wastes pretreated in this way can be used as nutrient solutions to grow plants in the phototrophic unit of the LSS. The purpose of this study was to explore the possibilities of using human wastes oxidized to different degrees to grow plants cultivated on the soil-like substrate (SLS). The treated human wastes were analyzed to test their sterility. Then we investigated the effects produced by human wastes oxidized to different degrees on growth and development of wheat plants and on the composition of microflora in the SLS. The irrigation solution contained water, substances extracted from the substrate, and certain amounts of the mineralized human wastes. The experiments showed that the human wastes oxidized using reduced amounts of 30% H2O2: 1 ml/g of feces and 0.25 ml/ml of urine were still sterile. The experiments with wheat plants grown on the SLS and irrigated by the solution containing treated human wastes in the amount simulating 1/6 of the daily diet of a human showed that the degree of oxidation of human wastes did not significantly affect plant productivity. On the other hand, the composition of the microbiota of irrigation solutions was affected by the oxidation level of the added metabolites. In the solutions supplemented with partially oxidized metabolites yeast-like microscopic fungi were 20 times more abundant than in the solutions containing fully oxidized metabolites. Moreover, in the solutions containing incompletely oxidized human wastes the amounts of phytopathogenic bacteria and denitrifying microorganisms were larger. Thus, insufficiently oxidized sterile human wastes added to the irrigation solutions significantly affect the composition of the microbiological component of these solutions, which can ultimately unbalance the system as a whole. В© 2010 COSPAR. Published by Elsevier Ltd. All rights reserved.

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Держатели документа:
Institute of Biophysics SB RAS, Akademgorodok, 50/50, Krasnoyarsk 660036, Russian Federation
Universite Blaise Pascal, 24 avenue des Landais, 63174 Aubiere cedex, France
ESA/ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, Netherlands : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirov, A.A.; Kudenko, Y.A.; Ushakova, S.A.; Tirranen, L.S.; Gribovskaya, I.A.; Gros, J.-B.; Lasseur, C.

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Some methods for human liquid and solid waste utilization in bioregenerative life-support systems / S. A. Ushakova [et al.] // Applied Biochemistry and Biotechnology. - 2008. - Vol. 151, Is. 2-3. - P676-685, DOI 10.1007/s12010-008-8291-3 . - ISSN 0273-2289
Кл.слова (ненормированные):
Closure -- Human waste -- Life-support systems -- Salicornia -- Sodium chloride -- Above-ground biomass -- Biological lives -- Bioregenerative -- Closure -- Cultivation process -- Culture methods -- Human waste -- Irrigation waters -- Life-support systems -- Manned space missions -- Mineral elements -- Physico-chemical methods -- Salicornia -- Salicornia europaea -- Salt-tolerant -- Soil-like substrates -- Biomass -- Body fluids -- Electrodialysis -- Grain (agricultural product) -- Irrigation -- Liquids -- Metal refining -- Minerals -- Mining -- Oxidation -- Plant shutdowns -- Sodium chloride -- Soils -- Solid wastes -- Substrates -- Water supply -- Vegetation -- article -- biomass -- controlled study -- electrodialysis -- halophyte -- irrigation (agriculture) -- microclimate -- nonhuman -- recycling -- Salicornia europaea -- solid waste -- bioremediation -- dialysis -- feces -- goosefoot -- growth, development and aging -- human -- methodology -- salt tolerance -- urine -- waste management -- wheat -- Batis maritima -- Salicornia -- Salicornia europaea -- Triticum aestivum -- Biodegradation, Environmental -- Chenopodiaceae -- Dialysis -- Feces -- Humans -- Life Support Systems -- Salt-Tolerance -- Triticum -- Urine -- Waste Management
Аннотация: Bioregenerative life-support systems (BLSS) are studied for developing the technology for a future biological life-support system for long-term manned space missions. Ways to utilize human liquid and solid wastes to increase the closure degree of BLSS were investigated. First, urine and faeces underwent oxidation by Kudenko's physicochemical method. The products were then used for root nutrition of wheat grown by the soil-like substrate culture method. Two means of eliminating sodium chloride, introduced into the irrigation solution together with the products of urine oxidation, were investigated. The first was based on routine electrodialysis of irrigation water at the end of wheat vegetation. Dialysis eliminated about 50% of Na from the solution. This desalinization was performed for nine vegetations. The second method was new: after wheat cultivation, the irrigation solution and the solution obtained by washing the substrate containing mineral elements not absorbed by the plants were used to grow salt-tolerant Salicornia europaea L. plants (saltwort). The above-ground biomass of this plant can be used as a food, and roots can be added to the soil-like substrate. Four consecutive wheat and Salicornia vegetations were cultivated. As a result of this wheat and Salicornia cultivation process, the soil-like substrate salinization by NaCl were considerably decreased. В© 2008 Humana Press.

Scopus
Держатели документа:
Institute of Biophysics, Russian Academy of Science, Siberian Branch, 660036 Krasnoyarsk, Russian Federation
K.A. Timiraziev Institute of Plant Physiology, Russian Academy of Science, 35 Botanisheskaya, 127276 Moscow, Russian Federation
LGCB, Universite Blaise Pascal, Polytech'Clermont-Ferrand, P.O. Box 206, 63174 Aubiere cedex, France : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.A.; Zolotukhin, I.G.; Tikhomirov, A.A.; Tikhomirova, N.A.; Kudenko, Yu.A.; Gribovskaya, I.V.; Balnokin, Yu.; Gros, J.B.

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Testing soil-like substrate for growing plants in bioregenerative life support systems / J. B. Gros [et al.] // Advances in Space Research. - 2005. - Vol. 36, Is. 7. - P1312-1318, DOI 10.1016/j.asr.2005.05.079 . - ISSN 0273-1177
Кл.слова (ненормированные):
Life support system -- Matter recycling -- Plants -- Soil-like substrate -- Biodiversity -- Correlation methods -- Growth kinetics -- Hormones -- Plants (botany) -- Recycling -- Soils -- Bioregeneration -- Life support system -- Matter recycling -- Soil-like substrate -- Space research
Аннотация: We studied soil-like substrate (SLS) as a potential candidate for plant cultivation in bioregenerative life support systems (BLSS). The SLS was obtained by successive conversion of wheat straw by oyster mushrooms and worms. Mature SLS contained 9.5% humic acids and 4.9% fulvic acids. First, it was shown that wheat, bean and cucumber yields as well as radish yields when cultivated on mature SLS were comparable to yields obtained on a neutral substrate (expanded clay aggregate) under hydroponics. Second, the possibility of increasing wheat and radish yields on the SLS was assessed at three levels of light intensity: 690, 920 and 1150 ?mol m-2 s-1 of photosynthetically active radiation (PAR). The highest wheat yield was obtained at 920 ?mol m-2 s-1, while radish yield increased steadily with increasing light intensity. Third, long-term SLS fertility was tested in a BLSS model with mineral and organic matter recycling. Eight cycles of wheat and 13 cycles of radish cultivation were carried out on the SLS in the experimental system. Correlation coefficients between SLS nitrogen content and total wheat biomass and grain yield were 0.92 and 0.97, respectively, and correlation coefficients between nitrogen content and total radish biomass and edible root yield were 0.88 and 0.87, respectively. Changes in hormone content (auxins, gibberellins, cytokinins and abscisic acid) in the SLS during matter recycling did not reduce plant productivity. Quantitative and species compositions of the SLS and irrigation water microflora were also investigated. Microbial community analysis of the SLS showed bacteria from Bacillus, Pseudomonas, Proteus, Nocardia, Mycobacterium, Arthrobacter and Enterobacter genera, and fungi from Trichoderma, Penicillium, Fusarium, Aspergillus, Mucor, Botrytis, and Cladosporium genera. В© 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
LGCB, Universite B. Pascal, CUST, BP206, 63174 Aubiere cedex, France
Environmental Control and Life Support Section, ESA-Estec, Postbus 299, 2200 AG, Noordwijk, Netherlands
Institute of Biophysics (Russian Academy of Sciences, Siberian Branch), Academgorodok, Krasnoyarsk 660036, Russian Federation
Department of Plant Physiology and Biotechnology, Tomsk State University, Lenin av. 36, Tomsk 634050, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gros, J.B.; Lasseur, Ch.; Tikhomirov, A.A.; Manukovsky, N.S.; Kovalev, V.S.; Ushakova, S.A.; Zolotukhin, I.G.; Tirranen, L.S.; Karnachuk, R.A.; Dorofeev, V.Yu.

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Feasibility of incorporating all products of human waste processing into material cycling in the BTLSS / Y. A. Morozov [et al.] // Life Sci. Space Res. - 2018. - Vol. 18. - P29-34, DOI 10.1016/j.lssr.2018.05.002 . - ISSN 2214-5524
Кл.слова (ненормированные):
BTLSS -- Closure -- Cycling -- Hydroponics -- Nutrient availability -- Sediment
Аннотация: The present study addresses the ways to increase the closure of biotechnical life support systems (BTLSS) for space applications. A promising method of organic waste processing based on “wet combustion” in hydrogen peroxide developed at the IBP SB RAS to produce fertilizers for higher plants is discussed. The method is relatively compact, energy efficient, productive, and eco-friendly. However, about 4–6 g/L of recalcitrant sediment containing such essential nutrients as Ca, Mg, P, Fe, Cu, Mn, and Zn precipitates after the initial process. These elements are unavailable to plants grown hydroponically and, thus, drop out of the cycling as dead-end products. Possible methods of dissolving that sediment have been studied. Results of experiments show that the most promising method is additional oxidation of the sediment in HNO3 + H2O2. By using the new technological process, which only involves substances synthesized inside the BTLSS material flows, more than 90% of each nutrient can be converted into the form available to plants in irrigation solutions, thus returning them into the material cycling. The results obtained in this study show the efficacy of supplementing the irrigation solutions with the mineral nutrients after sediment dissolution. Lettuce plants grown as the test object on the newly prepared irrigation solutions produced the yield that was more than twice higher than the yield produced on the nutrient solutions prepared without the sediment conversion into a soluble form. Composition of the gases emitted during this process has been analyzed. Dynamics of oxidation of the small fractions of a wax-like sediment remaining after the initial sediment dissolution in HNO3 + H2O2 in the BTLSS soil-like substrate has been studied. The entire technological scheme aimed at the full inclusion of all human wastes into the BTLSS cycling has been suggested and discussed. A process scheme of including products of human waste processing in the biotic cycle of the BTLSS is discussed in the conclusion. © 2018 The Committee on Space Research (COSPAR)

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center” SB RAS, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation
Reshetnev Siberian State University of Science and Technology, 31 “Krasnoyarskiy Rabochiy” Ave., Krasnoyarsk, Russian Federation

Доп.точки доступа:
Morozov, Y. A.; Trifonov, S. V.; Ushakova, S. A.; Anishchenko, O. V.; Tikhomirov, A. A.

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Feasibility of incorporating all products of human waste processing into material cycling in the btlss / Ye. A. Morozov [et al.] // Proceedings of the International Astronautical Congress, IAC. - 2017. - Vol. 4: 68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017 (25 September 2017 through 29 September 2017, ) Conference code: 136635. - P2143-2149
Кл.слова (ненормированные):
BTLSS -- Closure -- Cycling -- Hydroponics -- Nutrient availability -- Sediment -- Dissolution -- Energy efficiency -- Irrigation -- Life support systems (spacecraft) -- Plant shutdowns -- Sediments -- Space applications -- Waste incineration -- BTLSS -- Closure -- Cycling -- Hydroponics -- Nutrient availability -- Nutrients
Аннотация: The present study addresses the ways to increase the closure of biotechnical life support systems (BTLSS) for space applications. A promising method of organic waste processing based on wet combustion in hydrogen peroxide developed at the IBP SB RAS to produce fertilizers for higher plants is discussed. The method is relatively compact, energy efficient, productive, and eco-friendly. However, about 4-6 g/L of recalcitrant sediment containing such essential nutrients as Ca, Mg, P, Fe, Cu, Mn, and Zn precipitates after the initial process. These elements are unavailable to plants grown hydroponically, thus dropping out of the cycling as deadlock products. Possible methods of dissolving that sediment have been studied. Results of experiments show that the most promising method is additional oxidation of the sediment in HNO3 + H2O2. By using the new technological process, which only involves substances synthesized inside the BTLSS material flows, more than 90% of each nutrient can be converted into the available form in irrigation solutions, thus returning them into the material cycling. The efficiency of irrigation solutions beneficiated with the mineral nutrients after the sediment dissolution has been shown. Lettuce plants grown as the test object on the newly prepared irrigation solutions produced the yield that was higher more than twice compared to the nutrient solutions prepared without the sediment conversion into a soluble state. Composition of the gases emitted during this process has been analysed. Dynamics of oxidation of small fractions of a wax-like sediment remaining after its dissolution in the BTLSS soil-like substrate has been studied. In conclusion, the entire technological chain aimed at inclusion of deadlock products of human waste wet combustion into the BTLSS cycling has been suggested and discussed. © 2017 by the International Astronautical Federation (IAF). All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center, Krasnoyarsk Science Center SB RAS, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, 31 "Krasnoyarskiy Rabochiy" Ave., Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Morozov, Ye. A.; Trifonov, S. V.; Ushakova, S. A.; Anishchenko, O. V.; Tikhomirov, A. A.

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Status, trends, and future dynamics of freshwater ecosystems in Europe and Central Asia / R. E. Gozlan [et al.] // Inland Waters. - 2019, DOI 10.1080/20442041.2018.1510271 . - Article in press. - ISSN 2044-2041
Кл.слова (ненормированные):
aquatic -- biodiversity -- conservation -- habitat
Аннотация: This review is part of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) report on Europe and Central Asia (ECA) and provides a critical assessment of issues facing decision-makers, including freshwater biodiversity and ecosystem trends as well as drivers of change. Freshwater systems are well established as the most threatened ecosystem type in the ECA region, with the quantity and quality of habitats and abundance of many species rapidly declining. Only about half (53%) of the EU's rivers and lakes achieved good ecological status in 2015 (as defined by the Water Framework Directive in terms of the quality of the biological community), and many lakes, ponds, and streams are disappearing as a consequence of agricultural intensification and inefficient irrigation and urbanisation, combined with climate change. The situation regarding freshwater biodiversity remains highly critical in ECA as many species remain threatened with extinction, including >50% of known species for some groups (e.g., molluscs, amphibians). Drivers of ECA freshwater taxa include the destruction or modification of their habitat, including water abstraction, which affects ?89% of all amphibian threatened species and ?26% of threatened freshwater invertebrate species. Of particular concern is the lack of data for freshwater invertebrates. Current status is available for only a minority of species, and the impact of alien invasive species is often unknown, especially in Central Asia. Based on current freshwater biodiversity trends, it is highly unlikely that ECA will achieve either the respective Aichi biodiversity targets by 2020 (i.e., targets 2 to 4, 6 to 12, and 14) or Target 1 of the Biodiversity Strategy. © 2019, © 2019 International Society of Limnology (SIL).

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Держатели документа:
ISEM UMR226, Universite de Montpellier, CNRS, IRD, EPHE, Montpellier, 34090, France
Department of ecology and water resources management, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Tashkent, Uzbekistan
Institute of Biophysics, Krasnoyarsk Scientific Center, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Severtsov Institute of Ecology and Evolution, Moscow, Russian Federation
Aquatic Ecology Group, University of Vic–Central University of Catalonia, Vic, Spain
Catalan Institution for Research and Advanced Studies, ICREA, Barcelona, Spain

Доп.точки доступа:
Gozlan, R. E.; Karimov, B. K.; Zadereev, E.; Kuznetsova, D.; Sandra Brucet S, S.

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The effect of supplementation of the soil-like substrate with wheat straw mineralized to different degrees on wheat productivity in closed ecosystems / V. V. Velichko, A. A. Tikhomirov, S. A. Ushakova [et al.] // Life Sci. Space Res. - 2020. - Vol. 26. - P132-139, DOI 10.1016/j.lssr.2020.06.001 . - ISSN 2214-5524
Кл.слова (ненормированные):
Biological-technical human life support system -- Physicochemical mineralization of straw -- Soil-like substrate -- Wheat (Triticum aestivum L) -- hydrogen peroxide -- alternating current -- aqueous solution -- Article -- controlled study -- electric current -- evapotranspiration -- grain yield -- growing season -- harvest index -- irrigation (agriculture) -- macronutrient -- microclimate -- mineralization -- nitrogen concentration -- nutrient availability -- nutrient solution -- oxidation -- physical chemistry -- plant development -- plant growth -- priority journal -- sediment -- shoot -- soil like substrate -- soil treatment -- spikelet -- supernatant -- Triticum aestivum
Аннотация: Successful incorporation of soil-like substrate (SLS) into biotechnical life support systems is often complicated by the necessity to maintain the balance between flows of mineral elements taken up from the substrate by growing plants and mineral elements added to the SLS as components of mineralized plant inedible biomass. An imbalance between these two flows can be caused by the addition of recalcitrant plant waste such as wheat straw. The purpose of this study was to determine whether the availability of essential nutrients to be taken up by the roots of the wheat plants grown on the SLS could be enhanced by supplementing the SLS with the products derived from wheat straw subjected to different levels of physicochemical mineralization in the aqueous solution of hydrogen peroxide. Different degrees of straw mineralization were achieved by using different ratios of the aqueous solution of hydrogen peroxide to straw. The study showed that supplementation of the SLS with insufficiently oxidized products of physicochemical mineralization of straw resulted in a decrease in the grain yields. The inhibitory effect of the straw subjected to physicochemical oxidation increased with a decrease in the degree to which the straw had been oxidized. Only supplementation with the straw mineralized to the highest possible degree did not inhibit plant growth and development, and the crop yield in that treatment was higher than in the other treatments. © 2020

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Velichko, V. V.; Tikhomirov, A. A.; Ushakova, S. A.; Trifonov, S. V.; Gribovskaya, I. V.

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Efficacy of embedded metribuzin and tribenuron-methyl herbicides in field-grown vegetable crops infested by weeds / T. Volova, A. Demidenko, N. Kurachenko [et al.] // Environ. Sci. Pollut. Res. - 2020, DOI 10.1007/s11356-020-10359-1. - Cited References:35. - This work was supported by Project "Agropreparations of the new generation: a strategy of construction and realization" [Agreement No 074-02-2018-328] in accordance with Resolution No 220 of the Government of the Russian Federation of April 9, 2010, "On measures designed to attract leading scientists to the Russian institutions of higher learning". . - Article in press. - ISSN 0944-1344. - ISSN 1614-7499

РУБ Environmental Sciences
Рубрики:
DEFICIT IRRIGATION
   CONTROLLED-RELEASE
   YIELD
   TOMATO
   FORMULATIONS
Кл.слова (ненормированные):
Metribuzin -- Tribenuron-methyl -- Embedding -- Degradable P(3HB) -- Weed growth -- inhibition -- Quality of tomato fruits and beet roots
Аннотация: The purpose of the present study was to investigate the efficacy of the experimental formulations of the metribuzin (MET) and tribenuron-methyl (TBM) herbicides embedded in the matrix of degradable poly-3-hydroxybutyrate blended with wood flour in field-grown tomato and beet crops infested by weeds. There is a necessity to develop environmentally friendly and effective means to protect plants because of the shortcomings of the free herbicide forms such as the environmentally unsafe spray application of solutions and suspensions of the widespread metribuzin and tribenuron-methyl herbicides, removal from soil during watering events and rains, and transport to natural aquatic environments, where the herbicides accumulate in the trophic chains of biota. Free TBM is also rapidly inactivated in soil and metabolized to nontoxic products in plants. The efficacy of experimental formulations of metribuzin and tribenuron-methyl embedded in the matrix of degradable poly-3-hydroxybutyrate blended with wood flour was tested in field-grown tomato and beet crops infested with weeds. Application of metribuzin resulted in the highest productivity of tomatoes (2.3 kg/m(2)) and table beet (3.4 kg/m(2)), improved biometric parameters of tomato fruits and beet roots, and caused reduction in nitrate nitrogen concentrations in them. The mode of herbicide delivery did not affect sugar contents, but application of both metribuzin and tribenuron-methyl induced a 1.7-fold and 1.4-fold, respectively, increase in vitamin C concentrations in tomato fruits and beet roots relative to the vegetables grown on the subplots treated with free herbicides and the intact plants. Embedded herbicides can be used as preemergence herbicides in the field.

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Держатели документа:
Siberian Fed Univ, 79 Svobodnyi Av, Krasnoyarsk 660041, Russia.
SB RAS, Inst Biophys, Fed Res Ctr, Krasnoyarsk Sci Ctr, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Krasnoyarsk State Agr Univ, 90 Mir Av, Krasnoyarsk 660049, Russia.

Доп.точки доступа:
Volova, Tatyana; Demidenko, Alexey; Kurachenko, Natalia; Baranovsky, Sergey; Petrovskaya, Olga; Shumilova, Anna; Project "Agropreparations of the new generation: a strategy of construction and realization" of the Government of the Russian Federation [074-02-2018-328]

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10.

Physical-chemical method for desalting organic waste for agricultural cycles / S. V. Trifonov, A. V. Murygin, A. A. Tikhomirov // IOP Conference Series: Earth and Environmental Science : IOP Publishing Ltd, 2021. - Vol. 839: 5th International Scientific Conference on Agribusiness, Environmental Engineering and Biotechnologies, AGRITECH-V 2021 (16 June 2021 through 19 June 2021, ) Conference code: 172484, Is. 4. - Ст. 042062, DOI 10.1088/1755-1315/839/4/042062
Аннотация: The problem of developing a technology for the removal or drastic reduction of NaCl from organic waste, including human exometabolites and plant waste and intended for disposal in closed agricultural cycles, is very relevant, especially for Northern regions with risky agriculture. Without its solution, it becomes almost impossible to create a long-term functioning ecosystem due to the danger of accumulation of NaCl in irrigation solutions and soil with subsequent poisoning of plants. It is obvious that the development of the technology for extracting NaCl is most rational to perform in combination with the technology for processing human exometabolites, since they are the main source of NaCl. © Published under licence by IOP Publishing Ltd.

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center "krasnoyarsk Science Center SB RAS" Krasnoyarsk, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Trifonov, S. V.; Murygin, A. V.; Tikhomirov, A. A.

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