Line 1: |
Line 1: |
| rib
| | <pdf>File:Ribbon Test.pdf</pdf> |
| | <ref>Modified from S.J. Thien. 1979. A flow diagram for teaching texture by feel analysis. Journal of Agronomic Education. 8:54-55. as shown on https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/edu/?cid=nrcs142p2_054311 accessed 29 April 2019</ref> |
| | |
| | ---- |