Effect of the prorostim preparation on barley grain yield in the Mary El Republic

The article presents the study results on the effect of the ProRostim bioorganic growth stimulators on yield of the spring barley Pamyati Dudina variety. The studies were conducted in the experimental field of the Mari Research Institute of Agriculture, Branch of the FSBSI FASC of the North-East in conditions of sod-podzolic medium-loamy soil in 2023. The barley yield increment to the economical control after application of ProRostim preparation was 0.23 t/ha.