search
for
 About Bioline  All Journals  Testimonials  Membership  News  Donations


Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820
EISSN: 0718-5839
Vol. 77, No. 3, 2017, pp. 273-280
Bioline Code: cj17034
Full paper language: English
Document type: Research Article
Document available free of charge

Chilean Journal of Agricultural Research, Vol. 77, No. 3, 2017, pp. 273-280

 en Growth of tropical grasses in Oxisol contaminated by nickel
Barros Silva, Enilson de; Souza, Francisco Vagner Pereira de; Grazziotti, Paulo Henrique; Ferracciú Alleoni, Luís Reynaldo; Nardis, Bárbara Olinda & Ferreira, Evander Alves

Abstract

Soil pollution by heavy metals has increased worldwide and the search for plants that can be used to remediate polluted areas is an interesting alternative. The aim of this study was to evaluate the tolerance of tropical grasses to Ni and its availability for the Mehlich 1, DTPA, and USEPA 3051 and 3052 extraction methods in Nicontaminated Oxisol. Megathyrsus maximus check for this species in other resources (Jacq.) B.K. Simon & S.W.L. Jacobs ‘Aruana’ and ‘Tanzania’, Urochloa brizantha check for this species in other resources (Hochst. ex A. Rich.) R.D. Webster ‘Xaraés’ and ‘Marandu’, and Urochloa decumbens check for this species in other resources (Stapf) R.D. Webster ‘Basilisk’ were grown for 90 d in a Typic Hapludox (Oxisol) after adding 20, 40, and 120 mg Ni kg-1 to the soil. Tropical grasses showed a positive response to the application of Ni doses. The order of decreasing tolerance of tropical grasses to Ni in the soil was: ‘Basilisk’ > ‘Xaraés’ > ‘Marandu’ > ‘Aruana’ > ‘Tanzania’ based on the critical toxicity dose. Nickel concentration and accumulation increased with increasing soil Ni doses in all the tropical grasses. Mehlich 1, DTPA, USEPA 3051, and USEPA 3052 Ni extraction methods in the soil are efficient to diagnose Ni availability in tropical grasses.

Keywords
Bioremediation; critical level; extractor; heavy metals; phytoextraction.

 
© Copyright 2017 - Chilean Journal of Agricultural Research
Alternative site location: http://www.inia.cl

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2019, Site last up-dated on 11-Sep-2019.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Internet Data Center of Rede Nacional de Ensino e Pesquisa, RNP, Brazil