Open AccessFitoextração de cobre e zinco de um Neossolo Quartzarênico contaminado com metais pesados
Author(s) -
Lúcia Helena Garófalo Chaves,
Ramara Sena de Souza
Publication year - 2015
Publication title -
comunicata scientiae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.238
H-Index - 12
eISSN - 2177-5133
pISSN - 2176-9079
DOI - 10.14295/cs.v6i4.996
Subject(s) - phytoremediation , zinc , jatropha curcas , copper , chemistry , dry matter , soil water , sowing , heavy metals , organic matter , manganese , agronomy , hyperaccumulator , horticulture , environmental chemistry , environmental science , biology , organic chemistry , soil science
The use of plants for soil phytoremediation is a technique capable of using photosynthetic plant systems to reduce levels of soil metals. The objective of this study was to evaluate the ability of extracting heavy metals by Jatropha (Jatropha curcas L) plants, grown under an entisol. The experiment was carried out in a greenhouse, using pots with 8.6 kg of capacity. The experimental design was completely randomized with three replications, with five levels of copper (0, 20, 40, 60 and 80 mgdm-3) and five levels of zinc (0, 20, 40, 60 and 80 mgdm-3). Plant was harvested 90 days after sowing and the dry matter content, plant and soil heavy metals content were evaluated. With the application of copper and zinc, plant total dry matter decreased and the concentrations of these evaluated metals increased in all plant parts. The Jatropha is more efficient in extracting zinc than copper, which is a demand of a greater number of crops grown in copper contaminated soils.