The influence of tillage on soil water behavior
1981
HAMBLIN, A. P. | TENNANT, D.
Three intensities of tillage disturbance were imposed on a deep yellow loamy sand for three successive years. Differences in water release curves of the top 10 centimeters occurred in the first year and persisted through the three years. Air permeability and soil water diffusivity measurements also reflected differences in pore geometry. The distribution of water down the first 70 cm of profile was found to reflect these surface soil differences, with the ploughed treatment having its maximum water content deeper in the profile early in the rainy season. We infer that difference in tillage treatment will continue to affect soil and crop water status in such weakly structured sands.
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