Effect of different fertilizer on the amino acid fatty acid, and essential oil composition of Nigella Sativa seeds

The effect of different levels of nitrogen [N] and phosphorus [P] fertilizers on the amino acid, fatty acid and essential oil composition of Nigella sativa L. seeds were studied. Fertilization at a level of 100 Kg of each [N] and [P]/hectar and 50 Kg [P]/hectar, markedly increased the amino acid composition as well as the thymoquinone content of the essential oil. Treatment with 100 kg [N] and 200 Kg[P]/hectar significant increased the content of 11, 14-eicosadienoic acid in the fixed oil