Use of foliar fertilizers as attenuators of injuries caused by glyphosate drift in young coffee plantations

Authors

DOI:

https://doi.org/10.25186/.v15i.1755

Abstract

Glyphosate is the most used product for weed control in young coffee planting rows. The application is carried out in a directed way, avoiding the contact of the product with the crop. However, drift and consequent plant injuries frequently occur. An alternative to reduce these injuries is the use of attenuators capable of reducing the negative effects caused by this herbicide. Therefore, the objective of this study is to verify the efficiency of foliar fertilizers (Fertiactyl Pós® and Crop+) as attenuators of the toxic effects caused by the use of glyphosate in the coffee crop. Thus, coffee seedlings were subjected to different doses of the mixture of Fertiactyl Pós® with glyphosate and Crop+ with glyphosate. The treatments were applied on top of the plants. The percentage of coffee intoxication was evaluated at 14, 21, 28, 35, 42 and 70 days after application. At 90 days after application, height, leaf area and shoot and root dry matter were evaluated. Higher doses of glyphosate (1440 and 2880 g ha-1) without the use of attenuators caused intoxication levels close to 80% at 28 and 90 DAA. The use of Fertiactyl Pós® and Crop+ reduced the injuries caused by the application of glyphosate, regardless of the dose of herbicide and fertilizers, but with different levels of action. All the morphological variables measured suffered a negative action with the isolated use of glyphosate, with a tendency to recover when the attenuators were applied. It is concluded that the two attenuators were efficient in suppressing the deleterious effects of glyphosate on coffee plants affected by this herbicide. However, the attenuator Crop+ showed better recovery results. For 720 g ha-1 of glyphosate, the dose most used in the field, 8 L ha-1 is recommended for Fertiactyl Pós® and 4 L ha-1 for Crop+.

Key words: Coffea arabica; Crop+; Fertiactyl Pós®; Injury; Weed control.

References

ALCÂNTARA, E. N.; NÓBREGA, J. C. A.; FERREIRA, M. M. Métodos de controle de plantas daninhas no cafeeiro afetam os atributos químicos do solo. Ciência Rural, 39(3):749-757, 2009.

CARVALHO, F. P. et al. Deriva de glyphosate afeta a associação micorrízica arbuscular em cafeeiro. Planta daninha, 32(4):783-789, 2014.

COMPANHIA NACIONAL DE ABASTECIMENTO - CONAB. Acompanhamento da safra brasileira de café. 2020. Brasília, DF: Conab, Available in: https://www.conab.gov.br/info-agro/safras/cafe. Access in: November, 12, 2020.

EMPRESA BRASILEIRA DE PESQUISA AGROPECUÁRIA MINISTÉRIO DA AGRICULTURA, PECUÁRIA E ABASTECIMENTO - EMPRAPA. Valor bruto da produção. 2020. Brasília, DF: Embrapa. Available in: https://www.embrapa.br/busca-de-noticias/-/noticia/56084554/producao-dos-cafes-do-brasil-atinge-6162-milhoes-de-sacas-de-60kg-em-2020-volume-25-maior-que-2019. Access in: November, 04, 2020.

FRANÇA, A. C. et al. Teores de nutrientes em cultivares de café arábica submetidos à deriva de glyphosate. Planta daninha, 28(4):877-885, 2010.

FRANÇA, A. C. et al. Deriva simulada do glyphosate em cultivares de café Acaiá e Catucaí. Planta daninha, 31(2):443-451, 2013.

GOMES, C. A. et al. Indaziflam application in newly transplanted arabica coffee seedlings. Coffee Science, 14(3):373-381, 2019.

MACHADO, M. S. et al. Use of liquid fertilizer to reduce the phytotoxic effects of glyphosate on eucalyptus. Revista Caatinga, 30(3):730-737, 2017a.

MACHADO, M. S. et al. Protective effect on eucalyptus plants and signal grass control with a tank mixture of glyphosate and liquid fertilizer. Planta Daninha, 35(1):1-8, 2017b.

MACHADO, M. S. et al. Fertiactyl Pós® como protetor do eucalipto submetido à aplicação de glyphosate. Revista Brasileira de Ciências Agrarias, 12(2):194-201, 2017c.

MAGALHÃES, C. E. O. et al. Seletividade e controle de plantas daninhas com oxyfluorfen e sulfentrazone na implantação de lavoura de café. Planta Daninha, 30(3):607-616, 2012.

MALAVOLTA, E. Manual de nutrição mineral de plantas. São Paulo, São Paulo: Agronômica ceres, 2006. 638p.

MATOS, C. C. et al. Características fisiológicas do cafeeiro em competição com plantas daninhas. Bioscience Journal, 29(5):1111-1119, 2013.

NASCIMENTO, J. L. M. et al. Tolerância de plantas jovens de café a herbicidas aplicados isoladamente ou em mistura com o fertilizante fertiactyl. Revista Brasileira de Herbicidas, 18(4): 1-8, 2019.

PUCCI, L. F. et al. Association of indaziflam and oxyfluorfen in coffee pre- transplantation. Coffee Science, 14(3):359-365, 2019.

SOCIEDADE BRASILEIRA DA CIÊNCIA DE PLANTAS DANINHAS - SBCPD. Procedimentos para instalação, avaliação e análise de experimentos com herbicidas. Londrina: SBCPD, 1995. 42p.

SCHRÜBBERS, L. C. et al. Glyphosate spray drift in Coffea arabica - Sensitivity of coffee plants and possible use of shikimic acid as a biomarker for glyphosate exposure. Pesticide Biochemistry and Physiology, 115(1):15-22, 2014.

SILVA, A. A.; RONCHI, C. P. Manejo e controle de plantas daninhas em café. In: VARGAS, L.; ROMAN, E. S. (ed.). Manual de manejo e controle de plantas daninhas. Passo Fundo: Embrapa Trigo, p.417-475, 2008.

YAMASHITA, O. M. et al. Deriva simulada de herbicidas em mudas de Coffea canéfora. Scientia Agraria Paranaensis, 12(2):148-156, 2013.

Published

2020-12-29

How to Cite

GONÇALVES, A. L. L. .; PEREIRA, G. A. M.; SILVA, L. A. .; ALVES, D. P.; PUCCI , L. F. .; GONÇALVES, V. A. R. .; DOS REIS, M. R. . Use of foliar fertilizers as attenuators of injuries caused by glyphosate drift in young coffee plantations. Coffee Science - ISSN 1984-3909, v. 15, p. 151755, 29 Dec. 2020.