List of Articles nitrogen levels Open Access Article Abstract Page Full-Text 1 - Effects of planting pattern and Nitrogen amounts on yield and yield components of spring safflower in Eghlid region, Fars Province zohreh amini Mashala Hosseini Sedighe Zarei Hamid Madani Mohamad reza Mohamadrezakhani Open Access Article Abstract Page Full-Text 2 - The effects of nitrogen different rates on oil yield and seed quality and potassium and phosphorus uptake of winter canola, SLM046 Mahdi Taherkhani Ahmad Golchin