Weed control strip influences the initial growth of Eucalyptus grandis - doi: 10.4025/actasciagron.v34i1.12252

Authors

  • João Renato Vaz Silva Universidade Estadual Paulista, Campus de Jaboticabal. Author
  • Pedro Luis da Costa Aguiar Alves Universidade Estadual Paulista, Campus de Jaboticabal. Author
  • Roberto Estevão Bragion de Toledo Universidade Estadual Paulista, Campus de Jaboticabal. Author

DOI:

https://doi.org/10.4025/actasciagron.v34i1.12252

Keywords:

reforestation, weed interference, weed competition

Abstract

Reforestation in Brazil is conventionally carried out with a 50-cm weed control strip, using mechanical or manual hoeing or herbicides. The aim of this study was to determine effects of varying the width of the herbicide-treated strip on the establishment of Eucalyptus grandis. Eucalyptus plants were transplanted in Araraquara and Altinópolis counties, São Paulo State, Brazil. In Araraquara, the following treatments were evaluated: 0, 25, 50, 75, 100 and 150-cm wide strips, treated with herbicide, on either side of the eucalyptus row; in Altinópolis, the width of the strip on either side of the eucalyptus row was 0, 25, 50, 75, 100, 125 or 150 cm. Were evaluated dry matter of leaves, branches and stem and leaf area at 270 days after planting (270 DAP), chlorophyll content (400 DAP), stem diameter and eucalyptus plants height (410 DAP). In Araraquara, the main weed was Panicum maximum, and in Altinópolis, it was Rhynchelytrum repens. For both areas, a minimum of 75 cm of treated strip was required to minimise weed interference with eucalyptus plants’ development.

 

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Author Biography

  • Pedro Luis da Costa Aguiar Alves, Universidade Estadual Paulista, Campus de Jaboticabal.
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Published

2011-07-06

Issue

Section

Crop Protection

How to Cite

Weed control strip influences the initial growth of Eucalyptus grandis - doi: 10.4025/actasciagron.v34i1.12252. (2011). Acta Scientiarum. Agronomy, 34(1), 29-35. https://doi.org/10.4025/actasciagron.v34i1.12252

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