ABSTRACT The experiment to study the effect of SP-36 fertilizer dose on the yield of eggplant varieties (Solanum melongena L.) had been carried out since 25 April until 20 August 1996 at Girikulon village, Secang district, Magelang regency. The soil typ latosol, altitude 380 meters above sea level with pH 6,5. The method is split plot design (3 x 3) based on ran- domized complete block design …