CORN-TREE PROXIMITY EFFECTS IN AGROFORESTRY EXPERIMENTS

Authors

  • Vianney Reinaldo de Oliveira Department of Crop Science, Universidade Federal Rural do Semi-Árido, Mossoró, RN
  • Paulo Sérgio Lima e Silva Department of Crop Science, Universidade Federal Rural do Semi-Árido, Mossoró, RN
  • Patrícia Liany de Oliveira Fernandes Siqueira Department of Crop Science, Universidade Federal Rural do Semi-Árido, Mossoró, RN
  • Iron Macedo Dantas Department of Biology, Universidade do Estado do Rio Grande do Norte, Mossoró, RN
  • Maria Zuleide de Negreiros Department of Crop Science, Universidade Federal Rural do Semi-Árido, Mossoró, RN

DOI:

https://doi.org/10.1590/1983-21252016v29n315rc

Keywords:

Mimosa caesalpiniifolia. Gliricidia sepium. Zea mays. Taungya. Alleys.

Abstract

In agroforestry systems, annual plants closest to trees may behave differently from plants in rows that are more distant. This study evaluated the proximity effects of Mimosa caesalpiniifolia (sabiá) and Gliricidia sepium (gliricidia) on corn yield under the taungya and alley cropping systems. The two species were evaluated, in randomised blocks with five replications, in 2010 and 2011, under taungya and alley cropping, respectively. Three rows of corn (left, middle, and right) were grown between two rows of trees. Sabiá trees grew higher than gliricidia trees. The difference in crown diameter between species depended on plant age. There was a linear relationship between plant age and plant height and between plant age and crown diameter for both sabiá and gliricidia trees. In the taungya system, left rows produced more green ears than middle and right rows, but grain yield was higher in middle rows. In the alley system, green ear yield was also higher in left rows than in middle and right rows, but grain yield was unaffected by row position. In both agroforestry systems, there were no differences in corn yield for corn grown between sabiá or gliricidia trees.

Author Biographies

  • Vianney Reinaldo de Oliveira, Department of Crop Science, Universidade Federal Rural do Semi-Árido, Mossoró, RN
    DCV
  • Paulo Sérgio Lima e Silva, Department of Crop Science, Universidade Federal Rural do Semi-Árido, Mossoró, RN
    DCV
  • Patrícia Liany de Oliveira Fernandes Siqueira, Department of Crop Science, Universidade Federal Rural do Semi-Árido, Mossoró, RN
    DCV
  • Iron Macedo Dantas, Department of Biology, Universidade do Estado do Rio Grande do Norte, Mossoró, RN
    Departamento de Ciências Biológicas
  • Maria Zuleide de Negreiros, Department of Crop Science, Universidade Federal Rural do Semi-Árido, Mossoró, RN
    DCV

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Published

20-07-2016

Issue

Section

Forest Science