TY  - RE
AU  - Woodruff,C.M.
TI  - Nitrogen as a factor in corn production 2
PY  - 1990///
CY  - Missouri, CL (USA)
PB  - University of Missouri, 
KW  - Experiments
KW  - Food production
KW  - Models
KW  - Nitrogen
KW  - Yield factors
KW  - Zea mays
KW  - AGROVOC
ER  -