Effects of Irrigation Regimes on Stem Height and Leaf Number of Replanted Sunflower Varieties
Keywords:
Central Fergana, grassland soils, repeated cropping, sunflower, variety, waterAbstract
In the article, the pre-irrigation soil moisture of sunflower varieties “Jahongir” and “Yangi zamon” repeatedly planted in Ulughnor district of Andijan region in 2020-2022 in the conditions of long-irrigated grassland soils of Central Fergana is 70-70-60, 70-75-65 and 70-80-70% were studied. It is reported that the most positive results regarding stem height and number of leaves of sunflower varieties were obtained when the soil moisture before irrigation was 70-75-65% relative to the marginal field moisture capacity.
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