TY  - BOOK
AU  - SHISHVAN, Mehdi Tajbakhsh
TI  - Effect of nitrogen and plant population levels on the yield and quality of maize cultivars
U1  - 633.15 S40E 
PY  - 1982///
PB  - Ludhiana
KW  - MAIZE -- FERTILIZERS AND MANURES
KW  - NITROGEN FERTILIZERS
ER  -