TY  - BOOK
AU  - SINGH, Surinder Pal
TI  - Effect of sowing dates, spacings and time of nitrogen application on cotton (Gossypium hirsutum L.)
U1  - T 633.512 S48E 
PY  - 1987///
CY  - Ludhiana
PB  - PAU
KW  - COTTON -- FERTILIZERS AND MANURES
KW  - NITROGEN FERRTILIZERS
KW  - PLANT PROPAGATION
ER  -