Ю. Б. Арженовская Recently, the safety of agricultural products has become a rather relevant aspect. One of the ways to solve this problem is the use of biological preparations. The aim of the research was to determine the effectiveness of using bioorganic fertilizers on leafless varieties of peas. The article presents the results of research into the effect of bioorganic fertilizers on the productivity elements of pea varieties. Pea seeds were treated with the studied preparations before sowing and during vegetation. The elements of the crop structure were analyzed, the yield of varieties was taken into account, and the quality of seeds was assessed by protein content. In 2022, the varieties formed 2.76 beans per plant, and in 2023, which was favorable in terms of precipitation, they got 7.00 beans per plant. On the average for two years, the Kameleon variety formed the largest number of beans on the control ( 5.43 pcs. ) , the Astronavt variety treated with the ProRostim preparation formed 6.76 beans, and the Lump variety treated with the RutMost and SemyaStart preparations formed 7.04 beans. The Lump variety should be emphasized. When treated with the RutMost and SemyaStart preparations it formed on average 4.16 seeds per pod. The ProRostim preparation and the RutMost and SemyaStart preparations contributed to the formation of the highest number of seeds per plant in the Astronavt variety – 21.83 and 20.41 seeds, respectively. The varieties formed the higher mass of 1000 seeds in the conducted experiment ( 249.78 g ) in the favorable 2023. Positive increases in yield were observed only in 2023, when all the varieties had higher yields than the standard Aksayskiy usatiy 5 variety. Among the studied preparations, ProRostim provided the highest yield increases ( the excess over the control was +0.36 t/ha in 2022, +0.71 t/ha in 2023 ) . The highest protein content in seeds, averaged over two years, was observed in the Astronavt variety ( 29.32% ) treated with the RutMost and SemyaStart preparations.
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