Castor bean field. Stem, root, seed boxes. The building of the research institute of oilseeds and essential oil crops. Experimental fields of the institute. Ripe castor bean bolls. Portrait of the breeder V. E. Barkovsky, who bred a new castor bean variety suitable for mechanized harvesting. Research of seeds of a new plant variety in the laboratory of biochemistry. Preparation of equipment and fields for sowing castor oil plant in the Tikhoretsk state farm. Sowing castor oil plants, cultivation of seedlings. Production of a special set of HSC devices for single-phase harvesting of castor bean at the Rostov Agricultural Engineering Plant. Constructors at the combine. The scheme of the harvester for the assembly of castor bean. Institute researcher A. V. Zhukov checks the work of combines in the fields of the farm. Checking the readiness of the castor oil plant. Cleaning. Drying the seeds. The grain cleaning machine is working. Castor bean bags. Manufactured goods made with castor oil on store shelves.