ABSTRACT The experiment of effect interval to plant and dose of P and K on the yield of beans (Phaseolus vulgaris, L). had been carried out in September 10 until November 17 of 1996. This experiment was carried out in Kedungsari vil- lage, Magelang Utara district, soil pH 6.0 with an alti- tude of 350 m above sea level. The experiment is to search the best effect of inter- val to …