The results of the influence of a chemical preservative, which includes organic acids, on the process of silage of clover-thymotheal grain mass are presented. During the study, the effect of applying a preservative in a dosage of 2 l/t, 3 l/t, 4 l/t of green mass was studied, the drug was not introduced into the control sample. On the 10th, 20th and 30th days of the silage process, pH, organic acid content, and mass fraction of lactic acid were determined according to standard methods. In the control sample, the hydrogen index was higher than in the samples with the use of starter culture. The amount of lactic acid in all samples with preservative was higher than in the control. The content of butyric acid in all experimental silos did not exceed the permissible norms, and in the control sample, its content was slightly higher. The use of chemical preservative had a positive effect on the process of silage of green mass and preservation of its quality.

This study proposes a method for the chamber disinfection of paper with biocide in the form of fine, volatile droplets using antifungal Rocima GT. This method provides a fungicidal effect, and within a short exposure time, a fungistatic one. At a concentration of 5% Rocima GT solution, the minimum treatment time to ensure the complete disinfection of paper was 15 min. The proposed method of disinfection by a chemical mist was less harmful to paper than disinfection using a swab saturated in a biocide solution. It was noted that when using Rocima GT at insufficient concentrations to inhibit fungal growth completely, Rocima GT can induce, as well as suppress, organic acid produced by Aspergillus niger depending on the concentration.

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The study is aimed at studying the effect of a microbiological preparation consisting of lactic acid bacteria, thermophilic streptococci and cellulolytic bacteria on the quality of alfalfa silage with different dry matter content. Determined pH, content of organic acids, dry matter and nutrients, including carbohydrates. Inoculant application increased crude protein, crude fat and crude fiber and reduced water-soluble carbohydrates in silage. The preservation of nutrients in the test samples was higher than that of the control. pH corresponded to optimal values; however, lactic acid fermentation proceeded more intensively in the sample with an increased dry matter content.