TY  - BK
AU  - Fridline,C.R.
TI  - Field crop nutrition
U1  - 581.13  FRI 
PY  - 1978///
CY  - Ohio (United States of America)
PB  - Ohio State University
KW  - AGROVOC
KW  - Nutrition
KW  - Mineral soils
KW  - Crops
KW  - Oil crops
KW  - Field crops
KW  - Agriculture research
ER  -