information about 1938 USDA soil taxonomy field
Field Hierarchy
Parent | |||
---|---|---|---|
Soil morphology 2,800 papers | Soil series 2,621 papers | Digital soil mapping 2,406 papers | USDA soil taxonomy 1,658 papers |
Regosol 576 papers | |||
Current | |||
1938 USDA soil taxonomy papers | |||
Child |
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History