As crop land decreases and population increases, soil quality is becoming a concern. Utilizing cover crops in cropping systems could improve soil quality. This study examined 16 treatments of single-species cover crops, cover crop mixes, and two control treatments on a silt-loam soil, in a corn ( Zea mays L.) - soybean (Glycine max L. Merr.) crop rotation under no-tillage, to determine their effect on soil physical properties. Cover crop biomass differed (p<0.10) among treatments and produced a maximum of 15.6 Mg ha-1 of biomass in the crimson clover treatment. Water infiltration rates increased as much as 282% in the complete-mix treatment compared to the fallow control. Differences in infiltration rates due to cover crop species were shown in two-years. However, these results suggest that it may take more time for cover crops to affect change in bulk density and aggregate stability.
|Commitee:||Brye, Kris, Massey, Joseph|
|School:||Arkansas State University|
|School Location:||United States -- Arkansas|
|Source:||MAI 58/01M(E), Masters Abstracts International|
|Keywords:||Aggregate stability, Bulk density, Cover crops, Soil physical properties, Water infiltration|
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