Abstract
Nests of Sceliphron caementarium (black and yellow mud dauber) were collected from Sant Gadge Baba Amravati University (SGBAU), Amravati campus and analysed for their physicochemical composition. The investigation gave results for the nest as - pH 6.57, porosity 0.87mg/g, bulk density1.02g/mL, moisture content 1.01%, total surface area 5.55g/mgI2 and total surface charge 1.11mmolH+eq/g. Values obtained for the ordinary soil from the campus were pH 7.82, porosity 0.75mg/g, bulk density1.48g/mL, moisture content 2.27%, total surface area 4.76g/mgI2 and total surface charge 0.98mmolH+eq/g. Higher content of calcium and magnesium were found in nest clay samples as compared to the normal soil, whereas the iodine adsorption number and phosphorus were lower than normal soil.
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