The purpose of the research is to develop ways of soil reclamation applying phosphogypsum for spring barley crops on chernozemic soil growing under the conditions of the central agro-climatic zone of the Samara region. The studies were conducted in 2019-2021. The soil is ordinary medium loamy chernozemic with A1 horizon up to 50-60 cm. Full shoots of spring barley of the Berkut variety under the conditions of the central agro-climatic zone of the Samara region come up on the 7th day after seeding have been performed, there is no effect on this process both of mineral fertilizers and phosphogypsum. Their influence begins to manifest itself later. The introduction of phosphogypsum into the soil at a rate of 1.5-4.5 t / ha increases the vegetation of spring barley by 3-4 days, the use of phosphogypsum at a rate of 6.0 t / ha - by 5 days. The introduction of phosphogypsum into the soil against the background of the use of Ammophos in the norm of 100 kg/ha in gross weight, or 12 kg /ha - N and 52 kg/ha - P2O5 of the primary material, contributes to an increase of grain, on average by 5.9-9.5% - up to 710-734 g/l, the content of fat and ash in absolutely dry matter, respectively by 3.4-14.2 and 4.5-20.3% and free nitrogen extract - с 69.2% до 72.7%. The maximum values of these indicators were noted on the variants with the introduction of phosphogypsum 4.5 and 6.0 t per 1 ha. Economically, it is most expedient to apply phosphogypsum at a rate of 4.5 t/ha for spring barley of the Berkut variety on ordinary chernozemic soil of the central agro-climatic zone of the Samara region. The use of the above norm of phosphogypsum (6.0 t/ha) does not provide a significant increase of yield, leads to an increase of the production cost, a decrease of profitability of works and inefficient use of ameliorant.