1 |
Harrison R. B, A. B. Adams, C. Licata, B. Flaming, G. L. Wagoner, E. Carpenter, and E. D. Vance. 2003. Quantifying deep-soil and coarse-soil fractions: avoiding sampling bias. Soil Science Society of America Journal 67, 1602-1606.
DOI
|
2 |
Sands, R, E. L. Greacen, and C. J. Gerard. 1979. Compaction of sand soils in radiata pine forests. I. A penetrometer study. Australian Journal of Soil Research 17, 101-113. doi: 10.1071/ SR9790101
DOI
|
3 |
Soil Survey Staff. 1993. 'Soil survey manual. Soil Conservation Service.' US Department of Agriculture Handbook 18. (USDA: Washington, DC)
|
4 |
Poesen J, and H. Lavee. 1994. Rock fragments in topsoils: significance and processes. CATENA 23, 1-28. doi: 10.1016/0341-8162(94)90050-7
DOI
|
5 |
Salako, F. K., G. Tian, G. Kirchhof, and G. E. Akinbola. 2006. Soil particles in agricultural landscapes of a derived savanna in southwestern Nigeria and implications for selected soil properties. Geoderma 137, 90-99. doi: 10.1016/j.geoderma.2006.06.017
DOI
ScienceOn
|
6 |
Salako, F. K., P. O. Dada, C. O. Adejuyigbe, M. O. Adedire, O. Martins, C. A. Akwuebu, and O. E. Williams. 2007. Soil strength and maize yield after topsoil removal and application of nutrient amendments on a gravelly Alfisol toposequence. Soil and Tillage Research 94, 21-35. doi: 10.1016/j.still.2006.06.005
DOI
ScienceOn
|
7 |
Salako, F. K., G. Tian, and B. T. Kang. 2002. Indices of root and canopy growth of leguminous cover crops in the savanna zone of Nigeria. Tropical Grasslands 36, 33-46.
|
8 |
Haynes, R. J. 1981. Soil pH decrease in the herbicide strip of grasses-down orchard. Soil Sci. 132.4. 274-278
DOI
|
9 |
Nyssen J., M. Halle, J. Poesen, J. Deckers, and J. Moeyersons. 2001. Removal of rock fragments and its effects on soil loss and crop yield, Tigray, Ethiopia. Soil Use and Management 17, 179-187. doi: 10.1079/SUM200173
DOI
ScienceOn
|
10 |
Oliveira, M.T., and I. A. Merwin. 2001. Soil physical conditions in a New York orchard after eight years under different groundcover management systems. Plant and Soil 234(2): 233-237.
DOI
ScienceOn
|