TY  - BOOK
AU  - Khushwant Singh
TI  - Influence of nitrogen levels and its split application on the productivity of wheat (Triticum aestivum L.) planted with
U1  - T 633.114 K55I 
PY  - 2010///
CY  - Ludhiana
PB  - PAU
KW  - WHEAT -- FERTILIZEERS -- APLICATIONS
KW  - HAPPY SEEDER
KW  - NITROGEN
KW  - NITROGEN FERTILIZERS
N2  - The field experiment entitled
ER  -