Sorptivity and Organic Matter and its Humic Components Under Different Landforms in a Coastal Soil of West Bengal
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- Humic Acid, Sorptivity, Landforms, Salinity
- Raut, Shishir; Maji, B.; Burman, D.
- Soil organic matter and its humic components namely, humic acid and fulvic acid for different soils coming under three different landforms namely, cultivated deltaic, depressed land and mudflats were analyzed for a coastal Block (Gosaba) of West Bengal (India). Results showed that organic carbon content of all soils were medium (0.54%) to high (1.28%), salinity was low to high (3.6-13.7dS/ m). The steady state cumulative infiltration of deltaic soils were higher than depressed low soils because of higher fulvic acid content in deltaic soil (0.14-0.15%) than depressed soils (0.09-0.1%). The humic acid: fulvic acid ratio decreased with soil depth. The relation between sorptivity and EC, pH and humic acid were highly significant, exponential and negative (r = -0.87, -0.89 and -0.86, respectively).
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