TY  - DM
TI  - Regional soil and climate databases for the U.S.:  A supplement to managing nitrogen for groundwater and farm profitability
PY  - 1993///
CY  - Madison, WI (USA)
PB  - SSSA, 
KW  - Databases
KW  - Groundwater
KW  - AGROVOC
KW  - Nitrogen content
KW  - Soil classification
KW  - Soil genesis
KW  - USA
N1  - CD-ROM|Includes NLEAP Program
ER  -