Abstract
Water storage and transmission characteristics were studied on a sandy loam after six years of rice-wheat and maize-wheat rotations. In the rice-wheat rotation at 15–20 cm depth a layer of high bulk density and low permeability was found. This layer affected the soil water potential distribution during infiltration and reduced soil water storage of the soil profile. The initially higher water intake rate decreased steadily to a lower final value in the rice-wheat compared with the maize-wheat rotation. Below 5 cm depth rooting density of wheat was less in the rice-wheat than in the maize-wheat rotation.
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