TY  - BOOK
AU  - Sangha, Gurdev Singh
TI  - Influence of variable plant populations and nitrogen levels on the competing ability of transplanted paddy (Oryza sativa Linn.) with weeds
U1  - T 633.189.58 S15I 
PY  - 1983///
CY  - Ludhiana
PB  - PAU
KW  - RICE -- WEED CONTROL
KW  - NITROGEN
ER  -