ЭКИШ ТИЗИМЛАРИ ВА МАЪДАНЛИ ЎҒИТЛАР БИЛАН ОЗИҚЛАНТИРИШ МЕЪЁРЛАРИНИ КУНГАБОҚАР НАВЛАРИНИНГ УРУҒ ҲОСИЛДОРЛИГИГА ТАЪСИРИ

A study was conducted on the cultivation of sunflower as a successive crop following cereal harvests in the meadow soils of Andijan region. The trial evaluated local sunflower varieties “Dilbar”, “Yangi Zamon” and foreign cultivars “Berezansky”, “Rodnik (R-453)” using two planting patterns: 60×25-1 and 60×30-1. During the growing season, the plants were fertilized with mineral nutrients at rates of N150P75K100 and N180P90K120 kg/ha. The research, carried out between 2022 and 2024, examined the effects of these factors on plant density and seed yield. The findings revealed that the highest results were achieved with the “Dilbar” variety under the 60×25-1 planting pattern and fertilization at a rate of N180P90K120 kg/ha during the growing season. This approach yielded up to 32.0 centners per hectare (3.2 metric tons/ha), confirming the effectiveness of the applied technology.