TY  - BOOK
AU  - Chahal, Inderjit Singh
TI  - Studies in time of nitrogen application to wheat as affected by different sources
U1  - T 633.11 C27S 
PY  - 1973///
CY  - Ludhiana
PB  - PAU
KW  - NITROGEN FERTILIZERS
KW  - WHEAT -- FERTILIZERS & MANURES
ER  -