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vol.32 número1AVALIAÇÃO ECONÔMICA DA ALFACE ADUBADA COM BIOMASSA DE Calotropis procera EM DUAS ÉPOCAS DE CULTIVOHÁ VARIABILIDE GENÉTICA EM ACESSOS DE COQUEIRO-ANÃO CONSERVADOS NO BRASIL? índice de autoresíndice de assuntospesquisa de artigos
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Revista Caatinga

versão impressa ISSN 0100-316Xversão On-line ISSN 1983-2125

Resumo

OLIVEIRA, Kethelin Cristine Laurindo de et al. BIOLOGICAL MANAGEMENT OF Pratylenchus brachyurus IN SOYBEAN CROPS. Rev. Caatinga [online]. 2019, vol.32, n.1, pp.41-51.  Epub 09-Maio-2019. ISSN 0100-316X.  http://dx.doi.org/10.1590/1983-21252019v32n105rc.

The efficiency of biological products combined with biological fertilization for controlling Pratylenchus brachyurus in soybean crops, and effects of these treatments on soybean crops were evaluate. A greenhouse experiment was conducted at the Mato Grosso State University, in Brazil, using a randomized block design with a 10×2 factorial arrangement, and four replications. The treatments consisted of Trichoderma asperellum, B. subtilis, Purpureocillium lilacinum, B. subtilis + T. asperellum, B. subtilis + P. lilacinum, T. asperellum + P. lilacinum, B. subtilis + T. asperellum + P. lilacinum and abamectin, and Controls with, and without nematodes. Nematode population, plant height, stem base diameter, and soil microbiological characteristics (at 60 and 120 days after sowing - DAS), shoot dry weight (60 DAS), and number of pods per plant, and grain yield (120 DAS) were evaluated. The treatments were efficient for the control of phytonematodes at 60 DAS; the efficiency of treatments with biological products increased when combined with biological fertilization. The biological products were more efficient for controlling the nematodes than abamectin at 120 DAS; and the percentage of control were higher when they were combined with biological fertilization, in both growing periods. The biological treatments resulted in better agronomic characteristics, and higher number of pods per plant, and grain yield, affecting the plants in the first growing period, and significant interaction with the biological fertilizer for these variables in the second growing period. The interaction between treatments and biological fertilization was significant for soil microbiological characteristics in the second growing period.

Palavras-chave : Biological fertilization; Bacillus subtilis; Root lesion nematodes; Purpureocillium lilacinum; Trichoderma asperellum.

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