TY  - BOOK
AU  - Gurpreet Singh
TI  - Irrigation and nitrogen needs of august sown hybrid maize
U1  - T 633.15 G96I 
PY  - 2010///
CY  - Ludhiana
PB  - PAU
KW  - MAIZE
KW  - HYBRID
KW  - MAIZE -- RESEARCH
N2  - The field experiment entitled
ER  -