Abstract:
Experiments were conducted
to evaluate NPK fertilizer effects on early
growth of wheat (Triticum aestivum variety
Azar-2). Chemical fertilizers including urea
(100, 200, 300, 400, 500 and 1000 mg.L-1),
triple superphosphate (10, 20, 30, 30 and 60
mg.L-1) and potassium sulfate (100, 200,
300, 400 and 800 mg.L-1) were used along
with control in three replications. The used
concentrations imitate possible status of the
fertilizers in the soil solutions. The results
showed that fertilizers did not alter seed
germination percentage. However, there was
a significant influence on seedling
performance. Seedling growth under
potassium sulfate applications was
significantly enhanced, which was followed
by triple superphosphate, but urea decreased
the values. The root to shoot ratio was
influenced by potassium sulfate and the
ratio was decreased in all concentration.
Triple superphosphate did not significant
effects on seedling properties, while urea
decreased seedling performance. It was
concluded that the response of wheat to the
fertilizers application was different and
among the used materials potassium sulfate
could be effective on seedling growth of
wheat.
