This study was done in order to evaluate the use of organic fertilizers (Vermicompost and Chicken
manure) on the plant's height and number and weight of micro tuber Marfona cultivator potato (diameter of 25-
35mm) with 2factors of vermicompost in 4levels (0,3,6and 9 ton/Hectare) and chicken manure in4 levels
(0,10,12and 14Ton/Hectare) in the form of perfect randomly block with 3 replications in Mahidasht station of
Agriculture research center and natural sources of Kermanshah province in 2013. The result showed that with
increasing Vermicompost fertilizer, plant's height was reduced. Also highest number and weight of tubers with a
diameter of 25-35mm belonged to 12Ton Chicken manure treatment without Vermicompost.
