ABSTRACT The experiment of effect of kalium nitrat consentration and tricalcium fosfat consentration for hidroponic system on the growth and flowering of sprouting broccoli, was carried out since September 20 until November 20, 1995 at Tampingan, Tegalrejo, Magelang. With an altitude of 390 m above of the sea, air damp of mean 70 percentage. The purpose of this experiment e…