TY  - BOOK
AU  - SUKHPAL Singh
TI  - Effect of plant population and fertility levels on growth and yield of sunflower (Helianthus annuus L.)
U1  - 633.85 S92E 
PY  - 1998///
PB  - Ludhiana
KW  - SUNFLOWERS
KW  - OILSEED PLANTS
ER  -