الفهرس 
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Abstract
This study was conducted in the experimental farm, faculty of Agriculture , Minia university for two successive seasone.1989/1990 and 1990/1991 , the aim of this study was to figure out the response of nigella sativa ,L. plants to the application of different combinations of npk fertilization treatments and growth regulator treatments.
A spilt plot desing with four replications was followed in this experiment, npk levels were the main polts while the growth regulator treatments were the subplots,
Seeds were some in the experiment polts on oct, 15 th. The polts were 3x6m and contained 10 rows,60cm. aparts. The distance between the plants were 30 cm. the different npk treatments wereNopoko-n1p1k1- n2p2k2-n3p3k3.