BUVA MANAGEMENT IN SOYBEAN CULTIVATION
Abstract
The objective of this work was to evaluate the effectiveness of different herbicides in the management of desiccation of horseweed (Conyza spp) in the soybean crop, in addition to recording possible effects of phytotoxicity of the treatments for that crop. The experiment was carried out in Londrina-PR, latitude S: 23º24'22.43", longitude W: 51º9'51.36", altitude of 480m. The cultivar used was HO Iguaçu, sown on 09/18/2022, with the following characteristics: 12 plants per meter, spacing of 0.45m between lines and population density of 266,666 plants per hectare. The handling of applications and conduction of the experiment proceeded as follows: first application carried out on 09/13/2022, sequential carried out on 09/23/2022 and ending the test with the harvest on 03/10/2023. The experimental design used was randomized blocks with 26 treatments and 3 replications. Applications were carried out with a CO2 knapsack sprayer, equipped with a 2 m spray range bar containing 4 fan-type nozzles, spaced 0.50 m apart. The working pressure was 18 lb/in2, with a spray volume of 100 L/ha. In the results below, the treatments show the formulated products with their respective doses in ml/ha or g/ha in parentheses. The application times used were, A: Desiccation; B: sequential 10 days after application A. The highest increase in yield (2175.83kg/ha) in relation to the control was observed in the treatment: T2.
Author Biographies
Universidad de Ciencias Empresariales y Sociales.
Universidade Estadual de Londrina - UEL.
Universidade do Oeste Paulista - UNOESTE.
Agrogalaxy.
Acadêmico de Agronomia pela Universidade Anhanguera - Bandeirantes - PR - Brasil.
Universidade do Norte do Paraná.
Universidade Estadual do Norte do Paraná - UENP.
References
SILVA, M. G.F.; SILVA A. L.; XAVIER, S. A.; CANTERI, M.G. Syslaudo: Software de gerenciamento e automatização de experimentos agrícolas. Versão 10.0.48 01/03/2019. Disponível em: https://syslaudo.com Acesso em: 24 de Maio de 2023.
Albrecht, L.P.; Albrecht, A. J. P.; Silva, A. F. M.; Manejo de Buva (conyza spp). Disponivel em: https://maissoja.com.br/manejo-de-buva-conyza-spp Acesso em 10 de junho de 2023.
KISSMANN, K. G.; GROTH, D. Plantas infestantes e nocivas. São Paulo: BASF, p.789,1999. Disponivel em: https://www.scirp.org/ Acesso em 02 de junho de 2023.
AGROFIT. Sistemas de Agrotóxicos Fitossanitários. Disponível em <http://agrofit.agricultura.gov.br/agrofit_cons/principal_agrofit_cons> Acesso em: 20 de janeiro de 2023.
EMPRESA BRASILEIRA DE PESQUISA AGROPECUÁRIA. Soja em Números (safra 2017/2018). Londrina: Embrapa Soja. 2018. Disponível em: <https://www.embrapa.br/soja/cultivos/soja1/dados-economicos> Acesso em 19 de fevereiro de 2023.
TECNOLOGIAS de produção de soja – região central do Brasil 2014. Londrina: Embrapa Soja, 2013. 268p. (Sistemas de Produção/Embrapa Soja, ISSN 1677-8499; n° 16). https://ainfo.cnptia.embrapa.br/ Acesso em 18 de Janeiro 2023.
