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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova T. G., Zhila N. O., Vinogradova O. N., Nikolaeva E. D., Kiselev E. G., Shumilova A. A., Shershneva A. M., Shishatskaya E. I.
Заглавие : Constructing herbicide metribuzin sustained-release formulations based on the natural polymer poly-3-hydroxybutyrate as a degradable matrix
Место публикации : J. Environ. Sci. Health Part B Pestic. Food Contamin. Agric. Wastes. - 2016. - Vol. 51, Is. 2. - С. 113-125. - ISSN 03601234 (ISSN) , DOI 10.1080/03601234.2015.1092833
Ключевые слова (''Своб.индексиров.''): controlled release--embedding--metribuzin--poly(3-hydroxybutyrate)--slow-release formulations--granulation--pelletizing--weed control--controlled release--embedding--metribuzin--poly-3-hydroxybutyrate--slow release--herbicides
Аннотация: Polymer poly(3-hydroxybutyrate) [P(3HB)] has been used as a matrix in slow-release formulations of the herbicide metribuzin (MET). Physical P(3HB)/MET mixtures in the form of solutions, powders, and emulsions were used to construct different metribuzin formulations (films, granules, pellets, and microparticles). SEM, X-Ray, and DSC proved the stability of these formulations incubated in sterile water in vitro for long periods of time (up to 49 days). Metribuzin release from the polymer matrix has been also studied. By varying the shape of formulations (microparticles, granules, films, and pellets), we were able to control the release time of metribuzin, increasing or decreasing it. © 2016 Taylor & Francis Group, LLC.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Boyandin A. N., Kazantseva E. A., Varygina D. E., Volova T. G.
Заглавие : Constructing Slow-Release Formulations of Ammonium Nitrate Fertilizer Based on Degradable Poly(3-hydroxybutyrate)
Место публикации : J. Agric. Food Chem.: American Chemical Society, 2017. - Vol. 65, Is. 32. - С. 6745-6752. - ISSN 00218561 (ISSN) , DOI 10.1021/acs.jafc.7b01217
Ключевые слова (''Своб.индексиров.''): ammonium nitrate--degradable poly-3-hydroxybutyrate--embedding--fillers--nitrogen fertilizers--tablets--chemical contamination--ecology--ecosystems--fertilizers--fillers--nitrates--plastic coatings--ammonium nitrate--ammonium nitrate fertilizers--embedding--in-laboratory experiments--poly-3-hydroxybutyrate--slow release fertilizers--tablets--wheat (triticum aestivum l.)--nitrogen fertilizers
Аннотация: The present study describes construction and investigation of experimental formulations of ammonium nitrate embedded in a matrix of degradable natural polymer poly-3-hydroxybutyrate [P(3HB)] and P(3HB) blended with wood flour shaped as tablets, some of them coated with P(3HB). Kinetics of ammonium release into soil as dependent on the composition of the polymer matrix was investigated in laboratory experiments. The rates of fertilizer release from formulations coated with a biopolymer layer were considerably (two months or longer) slower than the rates of fertilizer release from uncoated formulations, while release from polymer and composite (polymer/wood flour) formulations occurred with comparable rates. The use of the experimental formulations in laboratory ecosystems with wheat (Triticum aestivum L.) was more effective than application of free ammonium nitrate. The advantage of the slow-release fertilizer formulations is that they are buried in soil together with the seeds, and the fertilizer remains effective over the first three months of plant growth. The use of such slow-release formulations will reduce the amounts of chemicals released into the environment, which will curb their accumulation in food chains of ecosystems and mitigate their adverse effects on the biosphere. © 2017 American Chemical Society.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova, Tatiana G., Prudnikova, Svetlana V., Zhila, Natalia O., Vinogradova, Olga N., Shumilova, Anna A., Nikolaeva, Elena D., Kiselev, Evgeniy G., Shishatskaya, Ekaterina I.
Заглавие : Efficacy of tebuconazole embedded in biodegradable poly-3-hydroxybutyrate to inhibit the development of Fusarium moniliforme in soil microecosystems
Колич.характеристики :11 с
Коллективы : Russian Science Foundation [14-26-00039]
Место публикации : Pest Manag. Sci.: WILEY, 2017. - Vol. 73, Is. 5. - С. 925-935. - ISSN 1526-498X, DOI 10.1002/ps.4367. - ISSN 1526-4998(eISSN)
Примечания : Cited References:43. - This study was supported by the Russian Science Foundation (grant number 14-26-00039). The authors declare no competing financial interest.
Предметные рубрики: CONTROLLED-RELEASE
FUNGICIDE TEBUCONAZOLE
BRASSICA-NAPUS
OILSEED
Ключевые слова (''Своб.индексиров.''): tebuconazole--poly-3-hydroxybutyrate--degradation--embedding--tebuconazole release--fungicidal effect
Аннотация: BACKGROUND: An important line of research is the development of a new generation of formulations with targeted and controlled release of the pesticide, using matrices made from biodegradable materials. In this study, slow-release formulations of the fungicide tebuconazole (TEB) have been prepared by embedding it into the matrix of poly-3-hydroxybutyrate (P3HB) in the form of films, microgranules and pellets. RESULTS: The average rates of P3HB degradation were determined by the geometry of the formulation, reaching, for 63 days, 0.095-0.116, 0.081-0.083 and 0.030-0.055 mg day(-1) for films, microgranules and pellets respectively. The fungicidal activity of P3HB/TEB against the plant pathogen Fusarium moniliforme was compared with that of the commercial formulation Raxil Ultra. A pronounced fungicidal effect of the experimental P3HB/TEB formulations was observed in 2-4 weeks after application, and it was retained for 8 weeks, without affecting significantly the development of soil aboriginal microflora. CONCLUSION: TEB release can be regulated by the process employed to fabricate the formulation and the fungicide loading, and the TEB accumulates in the soil gradually, as the polymer is degraded. The experimental forms of TEB embedded in the slowly degraded P3HB can be used as a basis for developing slow-release fungicide formulations. (c) 2016 Society of Chemical Industry
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova T., Baranovsky S., Petrovskaya O., Shumilova A., Sukovatyi A.
Заглавие : Biological effects of the free and embedded metribuzin and tribenuron-methyl herbicides on various cultivated weed species
Место публикации : J. Environ. Sci. Health Part B Pestic. Food Contamin. Agric. Wastes: Taylor and Francis Inc., 2020. - Article in press. - ISSN 03601234 (ISSN), DOI 10.1080/03601234.2020.1807835
Аннотация: The present study addresses the herbicidal activity and biological effects of the metribuzin (MET) and tribenuron-methyl (TBM) herbicides used to control various weed species (Amaranthus retroflexus, Sinapis arvensis, and Leucanthemum maximum). The effects of the free herbicides and the herbicides embedded in granules of degradable polymer poly-3-hydroxybutyrate [P(3HB)] blended with birch wood flour were compared. Metribuzin, regardless of the form, caused 100% mortality of the three weeds by day 21. The herbicidal activity of tribenuron-methyl was lower than that of metribuzin, but the embedded TBM was superior to the free herbicide in the length and strength of its action on the weeds. Both metribuzin forms dramatically decreased the main parameters of fluorescence: maximum quantum yield of photosystem-II [Y(II)max], maximum quantum yield of non-photochemical quenching [Y(NPQ)max], and maximum rate of non-cyclic electron transport [ETRmax] and concentrations of chlorophyll a and b. The effect of the embedded TBM on the photosynthetic activity of the weeds was lower in the first two weeks of the growth of herbicide-treated plants but lasted longer than the effect of the free TBM and increased over time. Embedding of metribuzin in the matrix of degradable blend did not decrease its herbicidal activity. © 2020 Taylor & Francis Group, LLC.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova, Tatyana, Demidenko, Alexey, Kurachenko, Natalia, Baranovsky, Sergey, Petrovskaya, Olga, Shumilova, Anna
Заглавие : Efficacy of embedded metribuzin and tribenuron-methyl herbicides in field-grown vegetable crops infested by weeds
Колич.характеристики :13 с
Коллективы : Project "Agropreparations of the new generation: a strategy of construction and realization" of the Government of the Russian Federation [074-02-2018-328]
Место публикации : Environ. Sci. Pollut. Res.: SPRINGER HEIDELBERG, 2020. - Article in press. - ISSN 0944-1344, DOI 10.1007/s11356-020-10359-1. - ISSN 1614-7499(eISSN)
Примечания : 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".
Предметные рубрики: DEFICIT IRRIGATION
CONTROLLED-RELEASE
YIELD
TOMATO
FORMULATIONS
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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova, Tatiana, Baranovsky, Sergey, Petrovskaya, Olga, Shumilova, Anna, Sukovatyi, Alexey
Заглавие : Biological effects of the free and embedded metribuzin and tribenuron-methyl herbicides on various cultivated weed species
Колич.характеристики :11 с
Коллективы : Project "Agropreparations of the new generation: a strategy of construction and realization" [074-02-2018-328]; Government of the Russian Federation of April 9, 2010, "On measures designed to attract leading scientists to the Russian institutions of higher learning" [220]
Место публикации : J. Environ. Sci. Health Part B-Pestic. Contam. Agric. Wastes: TAYLOR & FRANCIS INC, 2020. - ISSN 0360-1234, DOI 10.1080/03601234.2020.1807835. - ISSN 1532-4109(eISSN)
Примечания : Cited References:42. - 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".
Предметные рубрики: SYNTHASE-INHIBITING HERBICIDES
CHLOROPHYLL FLUORESCENCE
RELEASE
Аннотация: The present study addresses the herbicidal activity and biological effects of the metribuzin (MET) and tribenuron-methyl (TBM) herbicides used to control various weed species (Amaranthus retroflexus, Sinapis arvensis,andLeucanthemum maximum). The effects of the free herbicides and the herbicides embedded in granules of degradable polymer poly-3-hydroxybutyrate [P(3HB)] blended with birch wood flour were compared. Metribuzin, regardless of the form, caused 100% mortality of the three weeds by day 21. The herbicidal activity of tribenuron-methyl was lower than that of metribuzin, but the embedded TBM was superior to the free herbicide in the length and strength of its action on the weeds. Both metribuzin forms dramatically decreased the main parameters of fluorescence: maximum quantum yield of photosystem-II [Y(II)(max)], maximum quantum yield of non-photochemical quenching [Y(NPQ)(max)], and maximum rate of non-cyclic electron transport [ETRmax] and concentrations of chlorophyllaandb. The effect of the embedded TBM on the photosynthetic activity of the weeds was lower in the first two weeks of the growth of herbicide-treated plants but lasted longer than the effect of the free TBM and increased over time. Embedding of metribuzin in the matrix of degradable blend did not decrease its herbicidal activity.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova, Tatiana G., Kurachenko, Natalya L., Bopp, Valentina L., Thomas, Sabu, Demidenko, Aleksey V., Kiselev, Evgeniy G., Baranovsky, Sergey V., Sukovatyi, Aleksey G., Zhila, Natalia O., Shishatskaya, Ekaterina I.
Заглавие : Assessment of the efficacy of slow-release formulations of the tribenuron-methyl herbicide in field-grown spring wheat
Колич.характеристики :16 с
Коллективы : Ministry of Education and Science of the Russian FederationMinistry of Education and Science, Russian Federation [074-02-2018-328]
Место публикации : Environ. Sci. Pollut. Res.: SPRINGER HEIDELBERG, 2021. - Article in press. - ISSN 0944-1344, DOI 10.1007/s11356-021-17195-x. - ISSN 1614-7499(eISSN)
Примечания : Cited References:72. - The work on production and investigation of polymer films was carried out as part of the State Assignment of the Ministry of Education and Science of the Russian Federation [Grant No. 074-02-2018-328].
Предметные рубрики: BIODEGRADABLE POLY-3-HYDROXYBUTYRATE
WILD MUSTARD
Аннотация: The efficacy of slow-release formulations of tribenuron-methyl (TBM) embedded in the matrix of degradable poly(3-hydroxybutyrate) blended with birch wood flour [polymer/wood flour/herbicide 50/30/20 wt.%] was compared with the efficacy of TBM as the active ingredient of the Mortira commercial formulation, which was applied as post-emergence spray to treat spring wheat cv. Novosibirskaya 15. The study was conducted in Central Siberia (in the environs of the city of Krasnoyarsk, Russia) from May to August 2020. The biological efficacy of the embedded TBM was 92.3%, which was considerably higher than the biological efficacy of the Mortira formulation used as the post-emergence spray (15.4%). The embedding of TBM into degradable blended matrix enabled long-duration functioning of this unstable herbicide in soil. The sensitivity of weed plants to TBM differed depending on the species. TBM was more effective against A. retroflexus and A. blitoides, which were killed at an earlier stage, than against C. album and G. aparine, whose percentage increased in the earlier stage and which were controlled by the herbicide less effectively and at later stages. On the plot treated with the embedded herbicide, the parameters of the wheat yield structure were the best, and the total yield was the highest: 3360 +/- 40 kg/ha versus 3250 +/- 50 kg/ha in the group of plants sprayed with the Mortira formulation. The grain produced in all groups was of high quality and was classified as Grade 1 food grain. The highest quality parameters (grain hectoliter mass, gluten, and protein contents) were obtained in the group of plants treated with the embedded herbicide. The study of the embedded TBM confirmed the high efficacy of the experimental formulation.
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