ABSTRACT The aim of this experiment was to study the effect of plant spacing and spraying moment Triacontanol on the growth and production of Arachis hypogaea L. This experiment was conducted in Kebondalen kidul, Prambanan, Klaten, from July 15, 1987 to November 05, 1987. The soil type is Regosol with an altitude of 148 metres and pH noil 5,5. This experiment used fa…