تأثير مستويات مختلفة من التسميد النتروجيني و الفسفوري على نسبة الزيت في بذور الحبة السوداء

الملخص EN

The experiment has been conducted during winter season 2007-2008 in Sammawah province – south of Iraq .

Nitrogen has been applied at the rates of ( 0 , 60 , 70 and 80 kg Urea / ha ) , while phosphate levels are (0 , 100 , 110 and 120 kg Triple Super phosphate TSP /ha ) .

The experiment is laid out in RCBD with 3 replications .

Data have been collected on plant height (cm) , stem diameter .

No .

of branches .No.

of capsules per plant .No.

of seed per capsules , 500 seed weight , seed yield per plant (gm) .

seed yield (kg l ha) % fixed oil rate and fixed oil yield (kg / ha ).

Significant differences are reveable between the nitrogen and phosphorus fertilization .

The best result were obtained when using the combined application of 70 kg Urea / ha with 110kg TSP/ha.