TITLE

Transformations of Humus Carbon in Aila Affected Soils of Sunderban in Eastern Indian Mangrove Region

AUTHOR(S)
Samprikta Biswas; Nadira Banu Choudhuri; Partha Kumar Mukhopadhyay
PUB. DATE
July 2013
SOURCE
Middle East Journal of Scientific Research;2013, Vol. 15 Issue 3, p452
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
An incubation study was conducted to evaluate the effect of different treatments viz. lime, organic matter (vermicompost) and fertilizer, on changes of humic acid carbon and fulvic acid carbon of both upland and lowland mangrove soils collected from Aila (cyclone) affected village named Sandeshkhali, in South 24 Parganas district of West Bengal, Sunderban area of eastern India. N, P2O5 and K2O was added @ 80: 40: 40 kg ha 1 in each of the treatment except the blank one Treatment combination was made using two doses of lime (0 and 17.54 t ha 1 for upland; 0 and 9.14 t ha 1 for lowland soil) and vermicompost (0 and 5 t ha 1 for both upland and lowland soil) each. The soil samples were collected and analyzed for evaluating the changes in humic acid carbon and fulvic acid carbon at 30, 60 and 90 days of incubation. Initially the Aila affected soil was tested for various physico-chemical parameters like particle size distribution, soil reaction (pH), electrical conductivity (EC), cation exchange capacity (CEC), oxidisable organic carbon (O.C), humic and fulvic acid carbon (HAC and FAC), total sulphur (S), inorganic sulphate (SO4), total nitrogen, phosphorus and potassium (N, P and K) and water soluble and exchangeable potassium, calcium, magnesium and chloride (K, Ca, Mg and Cl). The soil samples were analyzed periodically for HAC, FAC and E4:E6 ratio of HA and FA. The data were statistically analyzed following the standard methods. Application of lime did not show appreciable changes in the content of HAC and FAC. But the application of vermicompost resulted to some extent better mobilization of HAC and FAC.
ACCESSION #
90424537

 

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