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

Abstract

The effects 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 (N) and 200 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 significantly increased the content of 11,14-eicosadienoic acid in the fixed oil.