This article provides information on the testing of the drug "Rokogumin liquid" JV LLC "Bio Eco World" (Uzbekistan) on winter wheat crops in irrigated conditions of the Andijan region. Tests of the preparation "Rokogumin Liquid" as a growth stimulator on winter wheat show that when spraying plants at the beginning of the tillering phase, normally 5.0 + 2.5 + 2.5 l / ha accelerates the process of tillering, growth and development of plants, increases productive bushiness, ear productivity, due to which the grain yield increases by 2.2 c / ha and the quality indicators of grain.