Impact of vermicompost addition on water availability of differently textured soils.

A highly significant decreasing relationship between soil bulk density (ρ b ) and vermicompost to soil ratio was observed for the five soils with coefficients of determination in the range of 0.80–0.95 ( Fig. 4 ).

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The volumetric water content generally increased with increasing the vermicompost dose with the only exception of the OR soil at very low soil pressure head values (i.e., between −330 and −15300 cm), where a decreasing trend was detected.

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