SULFENTRAZONE PHYTOREMEDIATION UNDER FIELD CONDITIONS

Authors

  • Alessandra Ferreira Belo Biological and Agricultural Science Department, Universidade Federal do Espírito Santos, São Mateus, ES
  • Fábio Ribeiro Pires Biological and Agricultural Science Department, Universidade Federal do Espírito Santos, São Mateus, ES
  • Robson Bonomo Biological and Agricultural Science Department, Universidade Federal do Espírito Santos, São Mateus, ES
  • Alberto Cargnelutti Filho Center of Rural Science, Universidade Federal de Santa Maria, Santa Maria, RS
  • Luis Henrique Ortelan Tenis Biological and Agricultural Science Department, Universidade Federal do Espírito Santos, São Mateus, ES

DOI:

https://doi.org/10.1590/1983-21252016v29n114rc

Keywords:

Green manure. Canavalia ensiformis. Crotalaria juncea. Soil decontamination. Crop succession.

Abstract

Phytoremediation is a technique that has been used with increasing frequency to decontaminate soils treated with herbicides that have long-term residual effects, such as sulfentrazone. The goal was to assess phytoremediation of the herbicide sulfentrazone under field conditions by the species Canavalia ensiformis and Crotalaria juncea. The treatments consisted of combinations of the plant species C. ensiformis and C. juncea plus a control treatment (with manual weeding) and four doses of the herbicide sulfentrazone. The experimental design used herein was a split-plot randomized block design with four replicates per subplot. The treatments were kept in the field for 75 days. After this period, the experimental area was again furrowed and fertilized, considering the requirements for Pennisetum glaucum, a plant used as an indicator of the presence of sulfentrazone. Thirty-four days after sowing pearl millet, the fresh and dry shoot masses of the plants were assessed. At the end of the cycle, the plant height, stem diameter, internode length, number of leaves, number of panicles, and fresh and dry panicle masses were determined. Previous cultivation of phytoremediation species C. ensiformis and C. juncea promotes sulfentrazone remediation. C. ensiformis is the most efficient species for the decontamination of the herbicide sulfentrazone under field conditions.

Author Biographies

  • Alessandra Ferreira Belo, Biological and Agricultural Science Department, Universidade Federal do Espírito Santos, São Mateus, ES
    Eng. Agrônoma e Doutorado pela UFV Pós-Doutorando pela UFES
  • Robson Bonomo, Biological and Agricultural Science Department, Universidade Federal do Espírito Santos, São Mateus, ES
    Eng. Agrônomo e Doutorado pela UFV Professor Associado da UFES
  • Alberto Cargnelutti Filho, Center of Rural Science, Universidade Federal de Santa Maria, Santa Maria, RS
    Eng. Agrônomo e Doutorado Prof. UFSM
  • Luis Henrique Ortelan Tenis, Biological and Agricultural Science Department, Universidade Federal do Espírito Santos, São Mateus, ES
    Graduando da UFES

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Published

11-03-2016

Issue

Section

Agronomy