List of Articles Chemical Nitrogen fertilizer Open Access Article Abstract Page Full-Text 1 - Effect of Fertilizers Containing Nitrogen on Yield and Mucilage of Isabgol (Plantago ovata L.) in Irrigation and Cutting off Irrigation Amir Toghraei Bahram Mirshekari Jahanfar Daneshian Hamdollah Kazemi Arbat Mehrzad i Mohasses Mostashar