ABSTRACT An experiment to study the effect of N, P and K fertilizer dose on peanut (Arachis hypogeae, L.), in Ngrombeh orchard, Klopo Village, Tegalrejo District, Magelang Regency had been done since Mei 24th until September 15th, 2003. The altitude is 450 m dpl, soil kindis alfisol and pH 5-6. The method of experiment is factorial (3x2x3) with completely randomized block design …