Effect of Soil Amendments on Microbial Resilience Capacity of Acid Soil Under Copper Stress

An incubation study was undertaken to study microbial resilience capacity of acid soil amended with farmyard manure (FYM), charcoal and lime under copper (Cu) perturbation. Copper stress significantly reduced enzymatic activities and microbial biomass carbon (MBC) in soil. Percent reduction in micro...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2017-11, Vol.99 (5), p.625-632
Main Authors: Mounissamy, Vassanda Coumar, Kundu, Samaresh, Selladurai, Rajendiran, Saha, Jayanta Kumar, Biswas, Ashish Kumar, Adhikari, Tapan, Patra, Ashok Kumar
Format: Article
Language:English
Subjects:
Acid phosphatase
Acid resistance
Acidic soils
Acids
Alkaline phosphatase
Animal manures
Aquatic Pollution
Biological activity
Biomass
Carbon
Charcoal
Copper
Copper - toxicity
Dehydrogenase
Dehydrogenases
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental Restoration and Remediation - methods
Enzymatic activity
Manure
Microbial activity
Microorganisms
Perturbation
Phosphatase
Pollution
Resilience
Soil - chemistry
Soil amendment
Soil lime
Soil Microbiology
Soil Pollutants - toxicity
Soil Science & Conservation
Soil stresses
Soil treatment
Stress, Physiological
Waste Water Technology
Water Management
Water Pollution Control
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Summary:An incubation study was undertaken to study microbial resilience capacity of acid soil amended with farmyard manure (FYM), charcoal and lime under copper (Cu) perturbation. Copper stress significantly reduced enzymatic activities and microbial biomass carbon (MBC) in soil. Percent reduction in microbial activity of soil due to Cu stress was 74.7% in dehydrogenase activity, 59.9% in MBC, 48.2% in alkaline phosphatase activity and 15.1% in acid phosphatase activity. Soil treated with FYM + charcoal showed highest resistance index for enzymatic activities and MBC. Similarly, the highest resilience index for acid phosphatase activity was observed in soil amended with FYM (0.40), whereas FYM + charcoal-treated soil showed the highest resilience indices for alkaline, dehydrogenase activity and MBC: 0.50, 0.22 and 0.25, respectively. This investigation showed that FYM and charcoal application, either alone or in combination, proved to be better than lime with respect to microbial functional resistance and resilience of acid soil under Cu perturbation.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-017-2173-8