TY  - BOOK
AU  - Krishna, K. R.,
TI  - Maize Agroecosystem Nutrient Dyanmics and Productivity
SN  - 9781926895086
U1  - 633.15 
PY  - 2013///
CY  - Boca Raton
PB  - CRC Press, Inc.
KW  - Field & plantation crops
ER  -