EFEITO DO USO DE RESÍDUO DO PROCESSAMENTO DE BAUXITA NOS TEORES DE MICRONUTRIENTES E SÓDIO EM PLANTAS DE CANA-DE-AÇÚCAR

Holos Environment

João Antonio Galbiatti³  Fabio Olivieri Nobile²  Mauricio Augusto Andrião³  Adriano Gerim Ribeiro⁴  Reginaldo Itiro Muraishi⁵  Marcio Martins Ferreira¹ 

[1] Fundação Educacional de Barretos, Barretos-SP;Centro Universitario da Fundação Educacional de Barretos;FCAV/UNESP, Jaboticabal-SP;Alcoa;Engenheiro Agrônomo

关键词: Nutrição mineral;    Reutilização;    Zinco;    Cobre;    Manganês;    Cana-de-açucar;   

DOI  :  

学科分类：环境科学（综合）

来源: Universidade Estadual Paulista "Julio de Mesquita Filho" * Centro de Estudos Ambientais

【 摘 要 】

Population growth and the consequent demand for consumergoods as well as the increase in industrial development generates great amounts of residues. The aluminum extraction industry pruduces mainly residues from the industrial processing of bauxite, in amountscorrelated with the industry size and they are disposed of in large containment lakes, causing significant environmental impact. Thus, the objective of the present study was to verify, in a protected environment, the effect of the addition of bauxite residues on sugarcane plants (SP92 4221), in relation to micronutrient levels in the plant.The following levels of bauxite processing residues were added to 10 litres containers: 0, 2, 4, 6, 8 and 10% of the volume of the containers, corresponding to 0, 28, 56, 84, 112 and 140 t ha-1. Results indicate that application of bauxite mining residues increased the levels of Mn and Na in the plants and decreased Zn, Cu and Fe absorption, and that higher levels of the residue inhibited the development of the crop.

【 授权许可】

Unknown