The paper discusses the relevance of project works within of the master program "Chemical-Toxicological Analysis of Agrosphere Objects" implemented at the Chemistry Department of Russian Timiryazev State Agrarian University. The authors show the possibility of forming the knowledge base of master students on environmental monitoring, quality control of agricultural products, the use of modern plant protection products, fertilizers and growth stimulants while performing the course project. As an example of project work performed within the framework of the above master program, the study of the properties of a new growth stimulant of natural origin "Rafitur" is considered. For this purpose, laboratory and field experiments were conducted for two years to determine the efficiency of the stimulant for flax growth at different stages of its development. As a result of the conducted studies, optimum concentrations of the "Rafitur" preparation for germination of flax seeds and flax growing in the conditions of field experiments were determined. The use of project technology of training helped to increased the competence of students while solving problems of the ecological safety of using chemical additives in crop production and the effect of growth stimulants on plants; planning and carrying out experiments; doing instrumental researches with modern devices taking into account the appropriate methodology; designing and presenting the results of independent work. Moreover, the project activity stimulated cognitive activity of students, promoted their independence, responsibility, and ability to solve real problems.