ABSTRACT The experiment with the aim of investigating the of fect of plant spacing and Dekamon concentration to the yield of Kidney bean (Phaseolus vulgaris L.) was carried out at Gelangean Village, Sub District North Magelang, Ka- gelang City, Central Jave, from 21 September 1989 until 30 November 1989. The soil type was Latosol, the soil pH was 6,5 with an altitude of 378 metres. The experi…