TY  - BOOK
AU  - Dow,A.I.
AU  - James,D.W.
ED  - United States.
TI  - Intensive soil sampling: a principle of soil fertility management in intensive irrigation agriculture 
U1  -  631.41 
PY  - 1973///
CY  - Washington, D.C.
PB  - Agricultural Experiment Station
KW  - Soil fertility
KW  - Fertilizers
KW  - Sustainable agriculture
ER  -