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Synergistic use of biochar and acidified manure for improving growth of maize in chromium contaminated soil
- Source :
- International journal of phytoremediation. 22(1)
- Publication Year :
- 2019
-
Abstract
- Chromium (Cr) contamination in farmlands has become a serious environmental concern due to the excessive use of industrial wastewater as an irrigation source. Therefore, some important measures need to be taken for reducing its mobility in a soil profile. A pot study was conducted to evaluate the effectiveness of sugarcane bagasse derived biochar and acidified manure on Cr mobility and its uptake by maize plant. Results showed that the application of biochar and acidified manure significantly changed soil pH, improved crop growth and as well as reduce the antioxidant response of maize in Cr contaminated soil. The concentration of bioavailable (AB-DTPA) extractable Cr in soil decreased with the addition of co-use of biochar (3%) and acidified manure (5%) by 36% relative to control. The maximum reduction in superoxidase dismutase (SOD), peroxidase dismutase (POD), and catalase activity assay (CAT), and ascorbate peroxidase activity (APX) was occurred by 41%, 51%, 20%, and 55%, respectively when biochar (3%) amended with the combination of acidified manure in Cr contaminated soil. Among all the amendments, biochar at 3% application combination with acidified manure (B2 + AMS) offered significantly minimize Cr mobility (Cr-III (44%) and Cr-VI (22%)) and thereby reduce its uptake by maize plant.
- Subjects :
- 0106 biological sciences
Chromium
Irrigation
chemistry.chemical_element
Plant Science
010501 environmental sciences
01 natural sciences
Zea mays
Industrial wastewater treatment
Soil
Biochar
Environmental Chemistry
Soil Pollutants
0105 earth and related environmental sciences
Contamination
Pulp and paper industry
Pollution
Manure
Soil contamination
Biodegradation, Environmental
chemistry
Charcoal
Environmental science
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15497879
- Volume :
- 22
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- International journal of phytoremediation
- Accession number :
- edsair.doi.dedup.....73895df400bfa2ca70e8822bc35d583f