Impact of organic manure and inorganic fertiliser on soil enzymatic activity and microbial diversity in the States of Tamil Nadu and Madhya Pradesh India


Citation

Subramanian S., . and Nagappan A. Senthil, . and Kurup D. N., . Impact of organic manure and inorganic fertiliser on soil enzymatic activity and microbial diversity in the States of Tamil Nadu and Madhya Pradesh India. pp. 147-162. ISSN 1394-7990

Abstract

A laboratory study was conducted to examine the effects of organic and inorganic cultivation on soil biological processes and biodiversity. Five soil samples from each of the organic manure treated fields and inorganic fertiliser treated fields from two different states Tamil Nadu and Madhya Pradesh in India were examined. The soil types were either black cotton or loamy soil. Two other soil samples from a fallow area of Indore Madhya Pradesh India were also included for nutrient status and biodiversity comparison. Soil organic carbon nitrogen phosphorus and potassium levels and soil enzymes that reflected soil microbial activity such as dehydrogenase beta glucosidase phosphatase and nitrate reductase were estimated. Inorganic fertilizer treated soils had the lowest organic carbon content (4.5 g kg-1) compared to the highest (12.2 g kg-1) in organic manure treated soils. Similarly soil phosphatase glucosidase and dehydrogenase activities were higher by 26 28 and 21 respectively in organic fertilizer treated soils. Randomly Amplified Polymorphic DNA (RAPD) profiles of soil DNA indicated microbial richness in organic manure treated soil as it had a low Jaccards similarity coefficient of 0.577 vs 0.703 in inorganic fertilizer treated soil. Soil microbial diversity and dynamics were found to be greater in the organic system of cropping. These findings suggest that these could be used as potential indicators for soil health.


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Abstract

A laboratory study was conducted to examine the effects of organic and inorganic cultivation on soil biological processes and biodiversity. Five soil samples from each of the organic manure treated fields and inorganic fertiliser treated fields from two different states Tamil Nadu and Madhya Pradesh in India were examined. The soil types were either black cotton or loamy soil. Two other soil samples from a fallow area of Indore Madhya Pradesh India were also included for nutrient status and biodiversity comparison. Soil organic carbon nitrogen phosphorus and potassium levels and soil enzymes that reflected soil microbial activity such as dehydrogenase beta glucosidase phosphatase and nitrate reductase were estimated. Inorganic fertilizer treated soils had the lowest organic carbon content (4.5 g kg-1) compared to the highest (12.2 g kg-1) in organic manure treated soils. Similarly soil phosphatase glucosidase and dehydrogenase activities were higher by 26 28 and 21 respectively in organic fertilizer treated soils. Randomly Amplified Polymorphic DNA (RAPD) profiles of soil DNA indicated microbial richness in organic manure treated soil as it had a low Jaccards similarity coefficient of 0.577 vs 0.703 in inorganic fertilizer treated soil. Soil microbial diversity and dynamics were found to be greater in the organic system of cropping. These findings suggest that these could be used as potential indicators for soil health.

Additional Metadata

[error in script]
Item Type: Article
AGROVOC Term: Organic fertilizers
AGROVOC Term: Inorganic fertilizers
AGROVOC Term: Biological activity in soil
AGROVOC Term: Biodiversity
AGROVOC Term: Enzyme activity
AGROVOC Term: Soil sampling
AGROVOC Term: Microorganisms
AGROVOC Term: Nitrogen
AGROVOC Term: Nutrients
AGROVOC Term: Dehydrogenases
Depositing User: Mr. AFANDI ABDUL MALEK
Last Modified: 24 Apr 2025 00:53
URI: http://webagris.upm.edu.my/id/eprint/7766

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