Testing humic substances on soy in the conditions of Primorsk region

The purpose of the researches was to define the influence of humic products "Cytohumat", "AFG" and "AFG-V" on the plants of soybean plants of mid-late variety Primorskaya 86, their influence on germination, immunity and maturation rate, the elements of the crop structure, crop production, the content of protein and oils in seeds. The research work was performed in the conditions of Primorsk Region in "Federal State Budget Scientific Institution "Federal Scientific Center of Agricultural Biotechnology of the Far East named after A.K. Chaika". The testing plot had meadow-brown bleached soil. The objects of the research were humic preparations and Primorskay 86 soybean variety. The largest number of sprouted plants per square meter was noted in the variants using “AFG”, the excess over the control was 14.0-16.0 %. The treatment with “AFG-V” and “Cytohumat” during the formation of 3-4 ternate leaves and at the beginning of soybean flowering reduced the development of fungal disease called “septoria”. Under humic substances’ influence growing period of the variety Primorskaya 86 became shorter (2-3 days). A significant increase in the protein content in the seeds was observed in the variant with the use of "Cytohumat", exceeding the standard by 2.4 %. The maximum yield was during the “Cytohumat” treatment, the excess over the examining made 3.2 c/hectare. In the variants with humic substances treatment on a soy variety Primorskaya 86 the yield increase compared to the control was noted.