Micronutrient application and residual effect on corn production in a no-tillage system

Autores

  • Juliano Magalhães Barbosa Universidade Federal de Goiás
  • Cláudia Fabiana Alves Rezende Universidade Federal de Goiás
  • Wilson Mozena Leandro Universidade Federal de Goiás
  • Rafael Felippe Ratke Universidade Federal de Goiás
  • Eliana Paula Fernandes Universidade Federal de Goiás

DOI:

https://doi.org/10.5433/1679-0359.2012v33n6p2187

Palavras-chave:

Zea mays, Cerrado, Mineral nutrition.

Resumo

Applying micronutrients to the soilhas a residual effect, reducing the fertilizer applications that are needed under a no-tillage system. The present study determined the residual effect of applying micronutrient-containing fertilizer to soil used for corn production under a no-tillage system. The field study was conducted in Red Latosol in Goiânia, Goiás, Brazil. The experiment was a conducted in a randomized block design with five treatments and four replicates. The fertilizer used in the study contained the micronutrients Mn, Zn, Fe, Cu, and B in powder form and was applied atfour doses (33.33 kg ha-1, 66.66 kg ha-1, 133.32 kg ha-1, and 66.66 kgha-1 plus 1.4 t ha-1 of calcium oxide); a control to which this fertilizer was not applied was used as a reference.The grain yield was measured, and leaf analysis and soil chemical analysis were conducted to evaluate the fertilizer efficiency and residual effect. The soil Zn content remained higherthan pre-experiment levels. Leaf analysis indicatedhigher absorption at the sites with high soil Zn content. The highest yield was obtained when applying 69.08 kg ha-1of micronutrient-containing fertilizer. The micronutrients Mn, Fe, Cu, and B exhibited no significant effect on corn yield, leaf nutrition, or soil residue.

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Biografia do Autor

Juliano Magalhães Barbosa, Universidade Federal de Goiás

Doctorate student in the Graduate Program in Agronomy, Federal University of Goiás, UFG, Goiania, GO, Brazil.

Cláudia Fabiana Alves Rezende, Universidade Federal de Goiás

Doctorate student in the Graduate Program in Agronomy, Federal University of Goiás, UFG, Goiania, GO, Brazil.

Wilson Mozena Leandro, Universidade Federal de Goiás

Prof. at the School of Agronomy and Food Engineering, Dept. of Soils, UFG, Goiania, GO, Brazil.

Rafael Felippe Ratke, Universidade Federal de Goiás

Doctor in Soil and Water by the Graduate Program in Agronomy, UFG, Goiania, GO, Brazil.

Eliana Paula Fernandes, Universidade Federal de Goiás

Prof. at the School of Agronomy and Food Engineering, Dept. of Soils, UFG, Goiania, GO, Brazil.

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Publicado

2012-12-04

Como Citar

Barbosa, J. M., Rezende, C. F. A., Leandro, W. M., Ratke, R. F., & Fernandes, E. P. (2012). Micronutrient application and residual effect on corn production in a no-tillage system. Semina: Ciências Agrárias, 33(6), 2187–2198. https://doi.org/10.5433/1679-0359.2012v33n6p2187

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