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Scientific Electronic Archives
Agricultural Science
DOI: 10.36560/15920221585
Submitted: 2022-04-20
Published: 2022-08-31

Effect of the use bentazon herbicide on the productivity of corn and dry mass of crotalaria intercropped

Universidade Estadual do Oeste do Paraná, Campus Marechal Cândido Rondon
Universidade Estadual do Oeste do Paraná, Campus Marechal Cândido Rondon
Universidade Estadual do Oeste do Paraná, Campus Marechal Cândido Rondon
Universidade Estadual do Oeste do Paraná, Campus Marechal Cândido Rondon
Plant Consortium, Herbicide resistance, Zea mays L.

Abstract

The objective of this work was to evaluate the selectivity of the herbicide bentazon for crotalaria intercropped with corn and the productivity of corn and dry mass of crotalaria grown in intercropping. The design used was randomized blocks (DBC), with 4 replicates and 5 treatments, as follows: Corn without herbicide application; Maize + Crotalaria spectabilis without herbicide application; Maize + Crotalaria spectabilis with application of bentazon herbicide at a dose of 0.5 L ha-1; Maize + Crotalaria spectabilis with application of bentazon herbicide at a dose of 1 L ha-1; Maize + Crotalaria spectabilis with application of bentazon herbicide at a dose of 1.5 L ha-1. Corn sowing was simultaneous to crotalaria, with previous harrowing of the soil. The hybrid used was the CD 3410 PW®, from the company Coodetec, industrially treated with the insecticide Poncho® from DuPont Pioneer (600g / l) while for the crotalaria common seeds were used without treatment. According to the analysis of variance, there was no significant difference (P <0.05) for the production of dry crotalaria as a function of the herbicide doses applied; as well as for the variables: plant height, stem diameter, insertion height of the first ear, ear diameter, ear length, mass of 1000 grains. The herbicide bentazon in the three tested dosages was selective for Crotalaria spectabilis, not harming its development or its dry mass production. Monoculture corn produced around 1.5 tonnes ha-1 more than intercropped with Crotalaria spectabilis.

References

  1. BRAZ, G. B. P.; OLIVEIRA JR., R. S.; CONSTANTIN, J.; TAKANO, H. K.; CHASE, C. A.; FORNAZZA, F. G. F.; RAIMONDI, R. T. Selection of herbicides targeting the use in crop systems cultivated with showy crotalaria. Planta Daninha, v. 33, n. 3, p. 521-534, 2015.
  2. CECCON, G.; STAUT, L. A.; SAGRILO, E.; MACHADO, L. A. NUNES, D. P.; ALVES, V. B. Legumes and forage species sole or intercropped with corn in soybean-corn succession in Midwestern Brazil. Revista Brasileira de Ciência do Solo, v. 37, n. 1, p. 204 -212, 2013.
  3. GARCIA, J. M. et al. O gênero Crotalaria L. (Leguminosae, Faboideae, Crotalarieae) na Planície de Inundação do Alto Rio Paraná, Brasil. Revista Brasileira de Biociências, v. 11, n. 2, 2013.
  4. GITTI, D. C.; ARF, O.; VILELA, R. G.; PORTUGAL, J. R.; KANEKO, F. H.; RODRIGUES, R. A. F. Épocas de semeadura de crotalária em consórcio com milho. Revista Brasileira de Milho e Sorgo, v. 11, n. 2, p. 156-168, 2012.
  5. IAPAR- INSTITUTO DE DESENVOLVIMEMTO RURAL DO PARANÁ. Agrometeorologia. Disponível em: <http://www.iapar.br/modules/conteudo/conteudo.php?conteudo=890>. Acesso em: 19 de Fev. 2018.
  6. IKEDA, F. S.; FILHO, R. V.; MARCHI, G. Interferências no consórcio de milho com Urochloa spp. Ciência Rural, v. 43, n. 10, p. 1763-1770, 2013.
  7. KAPPES, C.; ZANCANARO, L. Sistemas de consórcios de braquiária e de crotalárias com a cultura do milho. Revista Brasileira de Milho e Sorgo, v.14, n.2, p.219-234, 2015.
  8. NOGUEIRA, C. H. P.; CORREIA, N. M. Selectivity of Herbicides Bentazon and Nicosulfuron for Crotalaria juncea Intercropped with Maize Culture. Planta daninha, v. 34 n. 4, p. 747-757, 2016.
  9. OLIVEIRA JR., R.S.; INOUE, M.H. Seletividade de herbicidas para culturas e plantas daninhas. In: OLIVEIRA JR., R.S.; CONSTANTIN, J.; INOUE, M.H. (Orgs.). Biologia e Manejo de Plantas Daninhas. Omnipax: Curitiba - PR. p.243-262. 2011
  10. PEREIRA, L. C., FONTANETTI, A., BATISTA, J. N., GALVÃO, J. C. C., GOULART, P. L. Comportamento de cultivares de milho consorciados com Crotalaria juncea: estudo preliminar. Revista Brasileira de Agroecologia, v. 6, n. 3, p. 191-200, 2011.
  11. SBCPD-SOCIEDADE BRASILEIRA DA CIÊNCIA DAS PLANTAS DANINHAS. Procedimentos para instalação, avaliação e análise de experimentos com herbicidas. Londrina: SBCPD, 1995. 42 p.
  12. TAIZ, L.; ZEIGER, E. Fisiologia vegetal. 4. ed. Porto Alegre: Artmed, 2009.

How to Cite

Mohr, A. ., Seidel, E. P. ., Ribeiro, L. L. O., & Pan, R. (2022). Effect of the use bentazon herbicide on the productivity of corn and dry mass of crotalaria intercropped . Scientific Electronic Archives, 15(9). https://doi.org/10.36560/15920221585