TY - JOUR AU - Moradi, M. AU - Madani, H. AU - Malboubi, M. A. AU - Pilehvari Khomami, R. TI - Comparison the effect of biologic fertilizer with chemical on oil sunflower (helianthus annus) in Arak condition JO - New Finding in Agriculture VL - 3 IS - 10 SP - 168 EP - 178 PY - 2009 DO - ER -