ABSTRACT An experimental concering the effect of concentration of fertilizer leaf to growing and to the yield of variaties sort to groundnut (Arachis hypogaea L.) was carried out at Sawangan Village, Sawangan District, Magelang Regency, Central Java, since September 255d, 1992 until January 5, 1993. The kind of rd soil is Regosol, with an altitude of 450 m above sea level. The pur…