PRODUCTIVITY OF SUGAR SORGHUM WHEN USING HUMIC PREPARATIONS IN THE CONDITIONS OF THE LOWER VOLGA REGION

Abstract

The article presents the results of studying the effect of humic preparations on the yield and quality of sugar sorghum biomass. The objects of the research were varieties Capital (St), Sahara, Volunteer, Sevilla, Chaika. The experiment was laid on the experimental field of Federal State Budget-ary Scientific Institution “Russian Research and Design Technological Institute for Sorghum and Corn” (“Rossorgo”) according to a two-factor scheme (factor A – variety, factor B – humates) in different weather conditions. Differentiated responsiveness of varieties to treatment with humic preparations was noted. Both single and double application of K-Humate-Na with micro-elements led to an increase in plant height, flag leaf area, biomass, and dry matter yield. Under the conditions of our experiments, the maximum yield of green mass was observed in the Sahara variety with the double use of K-Humate-Nа on average for two years (34.2 t/ha). Humic preparations also caused an increase in the content of crude protein in the dry biomass harvest of the Sahara variety in 2017-2018. (K-Humate-Nа with micro-elements by 21.8-23.1%), crude fat (Reasil Forte Carb-N-Humic by 45.4-54.5%, respective-ly). The results of the field studies confirm the advisability of using salts of humic acids in the form of presowing and leaf treatments in the cultivation of sugar sorghum.

Keywords

• sugar sorghum
• varieties
• humic preparations
• biomass yield
• dry matter collection
• protein and fat yield