Abstract:
Achene yield, oil contents
and protein contents are vital yield attributes
of sunflower crop. To acquaint the impact of
NP rates and planting patterns on the
production potential of autumn sunflower
hybrid Hysun-33 and fertilizer use
efficiency a field experiment was executed
in 2005. Treatments comprised of four NP
combinations viz. 0-0, 50-35, 100-70 and
150-105 NP kg ha-1 and two planting
patterns viz. bed sowing with 75 cm wide
beds separated by 20 cm furrows and bed
sowing with 60 cm wide beds separated by
25 cm furrows. Treatment 150-105 NP kg
ha-1 with 75 cm wide beds separated by 20
cm furrows was found to be supercilious as
it exhibited significant lofty achene yield
(3360.00 kg ha-1), number of achene head-1
(1267.02), 1000-achene weight (68.65 g),
biological yield (11166.6 kg ha-1) and
harvest index (30.09%). Contrastingly,
treatment 0-0 N-P kg ha-1 with 60 cm wide
bed separated by 25 cm plant spacing
bestowed the minimum grain yield. Frail
increase in oil contents with gradual
increase in fertilizer levels but it did not
procure at a level of significance. Superior
protein contents (27.71%) were revealed in
treatment 150-105 N-P kg ha-1 with 75 cm
wide bed separated by 20 cm plant spacing.
