Rye is a typical cereal grain crop. Rye kvass is made from grain, flour is produced that goes mainly to bread, starch is obtained, and it is also used as raw material for the production of alcohol. Rye is one of the most common (after mustard) and the most valuable green manure. It effectively suppresses weeds and plant diseases, surpassing other known green manures in this property due to its particularly rapid development. Rye has a strong structuring (loosening) effect on loamy soils, making them lighter and more permeable. In addition, it partially displaces various pests (especially nematodes), except for wireworm, which rye, on the contrary, attracts.