Evaluation of Soil Management and Soil Degradation
Keywords:
Cover management, physical properties, organic matter, non-tillage, aggregate stabilityAbstract
Bulk density was significantly increased in all the treatments with highest value (1.65Mg/m ) in bare fallow and lowest value (1.43Mg/m ) in grass. There was no significant decrease in porosity and pore size distribution. Mean weight diameter (MWD) of aggregates and saturated hydraulic conductivity (Ksat ) were significantly increased. The least values for MWD (1.06mm) and for Ksat (25.80cm/hr) and highest for MWD (2.09mm) and for Ksat (49.20cm/hr) were obtained under bare fallow and grass treatments respectively. The percentage aggregate size above 2.0mm was highest in grass and lowest in bare fallow. Calculations showed significant positive correlation (r = 0.50) between organic matter and MWD. There was significant negative correlation (r = -0.60) between organic matter and bulk density and highly significant positive correlation (r = 0.800) between organic matter and saturated hydraulic conductivity.
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