Influence of Cellulolytic Bacterial Augmentation on Organic Carbon and Available Phosphorus in Sandy Loam Soil under Cultivation

Machiavelli Singh, Suneel Khanna, Tejo Prakash Nagaraja

Abstract


Microorganisms are major key players for sustaining the soil quality degraded by intensive use of synthetic chemicals for increasing crop production and therefore, use of them as inoculants or biofertilizers is an integral part of sustainable agriculture. An effort was, therefore, made to examine the effect of cellulose degrading bacterial isolates on legume (Chickpea) based cropping systems. No chemical/organic fertilizer was added during this study. The bacterial isolates viz., Serratia sp. (MSK1), Pseudomonas sp. (MSK 13) and Serratia sp (MSK24) exhibiting cellulase activity of 3.83, 4.21 and 4.52 mM glucose ml-1 h-1 respectively were introduced as inoculants. The ERIC-PCR results showed the good survivability of 40.2, 34.4 and 56.8 % of the introduced strains in soil after the crop harvest. A significant enhancement in organic carbon and available phosphorus was observed in the inoculated plots over the control plot indicating beneficial effect of the bioaugmentation of these inoculants. 


Full Text: PDF DOI: 10.5539/jas.v2n3p137

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Journal of Agricultural Science ISSN 1916-9752 (Print) ISSN 1916-9760 (Online)

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