ABSTRACT The experiment of the effect of planting distance and weeding frequency on Soybean yield (Glycine max, (L) Merrill). The experiment has been conducted at develop- ment Centre Garden of Palawija Central Java, Soropadan, Pringsurat district, Temanggung regency, since March 17th 1986 to June 22th metres altitude, pH 4,7. 1986. Soil type is Latosol, 550 Th…