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полный	информационный	краткий

Поисковый запрос: (<.>K=macrocheata<.>)

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Poly(3-hydroxybutyrate)/metribuzin formulations: characterization, controlled release properties, herbicidal activity, and effect on soil microorganisms / T. Volova [et al.] // Environ. Sci. Pollut. Res. - 2016. - Vol. 23, Is. 23. - P23936-23950, DOI 10.1007/s11356-016-7636-7. - Cited References:41. - This study was supported by the Russian Science Foundation (grant no. 14-26-00039). . - ISSN 0944-1344. - ISSN 1614-7499

РУБ Environmental Sciences
Рубрики:
METRIBUZIN RELEASE
   POLYHYDROXYALKANOATES
   POLYMER
   MATRIX
   PESTICIDES
Кл.слова (ненормированные):
Metribuzin -- Degradable poly-3-hydroxybutyrate -- Slow-release P(3HB)/MET -- formulations -- Release kinetics -- Agrostis stolonifera -- Setaria -- macrocheata
Аннотация: Slow-release formulations of the herbicide metribuzin (MET) embedded in the polymer matrix of degradable poly-3-hydroxybutyrate [P(3HB)] in the form of microparticles, films, microgranules, and pellets were developed and tested. The kinetics of polymer degradation, MET release, and accumulation in soil were studied in laboratory soil microecosystems with higher plants. The study shows that MET release can be controlled by using different techniques of constructing formulations and by varying MET loading. MET accumulation in soil occurs gradually, as the polymer is degraded. The average P(3HB) degradation rates were determined by the geometry of the formulation, reaching 0.17, 0.12, 0.04, and 0.05 mg/day after 60 days for microparticles, films, microgranules, and pellets, respectively. The herbicidal activities of P(3HB)/MET formulations and commercial formulation Sencor Ultra were tested on the Agrostis stolonifera and Setaria macrocheata plants. The parameters used to evaluate the herbicidal activity were plant density and the weight of fresh green biomass measured at days 10, 20, and 30 after sowing. All P(3HB)/MET formulations had pronounced herbicidal activity, which varied depending on MET loading and the stage of the experiment. In the early phases of the experiment, the herbicidal effect of P(3HB)/MET formulations with the lowest MET loading (10 %) was comparable with that of the commercial formulation. The herbicidal effect of P(3HB)/MET formulations with higher MET loadings (25 and 50 %) at later stages of the experiment were stronger than the effect of Sencor Ultra.

WOS,
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Держатели документа:
Russian Acad Sci, Inst Biopshys, Siberian Branch, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Volova, Tatiana; Zhila, Natalia; Kiselev, Evgeniy; Prudnikova, Svetlana; Vinogradova, Olga; Nikolaeva, Elena; Shumilova, Anna; Shershneva, Anna; Shishatskaya, Ekaterina; Russian Science Foundation [14-26-00039]

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