Abstract:
During the growth and development of the soybean, it goes through the following developmental stages: greening, branching, budding, flowering, legume formation and maturation. The passage of the phases and the conditions required for will depend on the biology of the varieties. In particular, the technological measures taken have a significant impact on the growth of the soybean. In order to study growing peculiarities of soybean in saline soils along the Aral Sea research was conducted in the experimental fields of Karakalpak Scientific Experimental Station of the Uzbek Research Institute of Cereals and Legumes and the Karakalpakstan Institute of Agriculture and Agrotechnologies. The relief of the test site is flat, the mechanical composition of the soil is moderately heavy gray loam. Alfalfa is sown before crops. The field was plowed in the fall and saline washing was carried out. In the experimental layout scheme of the soybean, the varieties were placed with four repetitions. Planting depth was 5-6 cm, the method was planted in wide rows, 60 cm between rows. The object of the experiment was "Nafis" varieties of soybean, Prior to planting, soil samples were taken from the experimental site based on generally accepted methods for performing agrochemical tests to determine soil salinity. Soil samples were mixed with five proportions of distilled water and filtered in the laboratory of the institute to prepare a soil solution and agrochemical analysis was carried out to determine the salinity of the soil in the field.
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