Response of Ashwagandha (Withania somnifera L.) to sowing dates and organic liquid fertilizer (Vit-ORG)

The experiment was conducted to study the response of Ashwagandha to sowing dates and organic liquid fertilizer ( Vit-ORG) on chemical components of Ashwagandha sown at Medicinal and Aromatic Plants fields of the College of Agriculture , Basra University ,Iraq, during the growing season of 2013/2014 and 2014/2015. The experiment was laid out in Randomized Complete Block Design in a factorial experiment having three replications. The experiment involved two factors: sowing dates at three levels of 1 or 20 September and 10 October and organic liquid fertilizer ( Vit-ORG) (0 and 2) ml.l-1.Theresults showed that the nutritional contents were significantly affected by sowing dates and organic liquid fertilizer ( Vit-ORG).Percentage of fixed oil and total alkaloid were not significantly affected by sowing dates during both growing seasons. The organic liquid fertilizer ( Vit-ORG) caused increase the percentage of fixed oil in leaves and roots. The interactions between sowing dates and organic liquid fertilizer ( Vit- ORG)gave a significant increase in most studied parameters during both seasons.

Author(s): Essam H. A. Al-Doghachi, Abdul-Razzak O. Hassan and Nada N. Faris

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