Effect of Canopy and Grazing on Soil Bulk Density
- Author(s): Tate, Kenneth W
- Dudley, Dennis
- McDougald, Neil
- George, Melvin
- et al.
This study compared soil surface bulk density between: 1) sites not grazed by cattle > 26 years; 2) sites not grazed for 6 years; 3) sites grazed for 15 years to October residual dry matter levels of > 1100 kg ha(-1); 4) sites grazed for 15 years to October residual dry matter levels of 670 to 900 kg ha(-1); 5) sites grazed for 15 years to October residual dry matter levels of 0.05) between sites not grazed > 26 years and sites not grazed for 6 years. Grazing to residual dry matter levels of > 1100, 670 to 900, and 6 or 26 years. For the purpose of maintaining soil surface bulk density current residual dry matter recommendations for sites with canopy cover > 50% appear appropriate, but recommendations for open grasslands need additional review. In particular, residual dry matter level must be directly linked to soil surface infiltration capacity.
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