The corn hybrid BELIZEYNY 300 is a mid-season crop intended for grain and flour production. Plants reach a height of 225 to 280 cm, with ears attached at a level of 90-100 cm. The 1000-grain weight is approximately 300 grams, and the grain is yellow and dent-shaped. The hybrid is characterized by high yield: grain yields 12 to 12.5 tons per hectare, and silage reaches up to 65 tons per hectare, making it advantageous for various agricultural purposes. BELIZEYNY 300 exhibits resistance to a range of diseases, including common and downy mildew, stalk rots, and ear Fusarium. Additionally, the crop is resistant to stem breakage below the ear during vegetation, which helps preserve yield. The hybrid also demonstrates high resistance to adverse conditions such as cold, drought, and pests, confirmed by a resistance rating of 9 points. The recommended planting density is 60,000 plants per hectare for dryland cultivation and 70,000 for irrigated areas. The crop does not sucker and is suitable for cultivation in various climatic zones, including the Polesye, Forest Steppe, and Steppe regions. Due to its agronomic characteristics and high productivity, the hybrid BELIZEYNY 300 is widely used for both feed corn production and grain and flour production.