ISHS


Acta
Horticulturae
Home


Login
Logout
Status


Help

ISHS Home

ISHS Contact

Consultation
statistics
index


Search
 
ISHS Acta Horticulturae 852: IV International Symposium on Ecologically Sound Fertilization Strategies for Field Vegetable Production

APPLICABILITY OF SPENT MUSHROOM COMPOST (SMC) AS ORGANIC AMENDMENT FOR REMEDIATION OF POLLUTED SOILS

Authors:   I. Frutos, A. Gárate, E. Eymar
Keywords:   heavy metals, Atriplex halimus, phytoremediation, mining soil, soil fertility
Abstract:
In this paper we studied the remediation of two soils by applying spent mushroom compost (SMC) in three doses: 0, 40,000 and 80,000 kg ha-1. The major pollutants considered were Cd, Pb and Cu. Atriplex halimus was used as a plant indicator of the level of soil contamination. It was established that the addition of SMC affected the uptake of heavy metals in Atriplex halimus. There is a significant decrease in the concentration of heavy metals in shoots with increased dose of SMC. In the most polluted soil, the increase of SMC from 0 to 80,000 kg ha-1 caused a decrease in Pb in shoots from 48.62 to 11.32 mg kg-1. Similarly Cd decreased from 8.66 to 4.44 mg kg-1 and Cu of 86.4 to 45.4 mg kg-1. Results obtained after three months of plantation demonstrates that the SMC amendments produce a higher shoot and root growth in comparison with the control treatment. This is possibly due to an improvement in the physical properties of soils, a significant increase in available nutrients and an immobilization of heavy metals that otherwise produce toxic effects. That means that SMC can be a good organic amendment for soils used for sustainable plant production.
  • Full Text (PDF format, 395221 bytes)
  • Citation
  • Translate

Download Adobe Acrobat Reader (free software to read PDF files)

852_31     852     852_33

URL www.actahort.org      Hosted by KU Leuven      © ISHS