Аңдатпа
The bottom sediments of the eutrophic lakes of the North Kazakhstan region are distinguished by the presence of sapropel, which can be used in agriculture. To create an effective technology for processing sapropels, it is necessary to know the features of their chemical composition, which ultimately affects the indicators of the sowing qualities of crop seeds. Based on the study of the chemical composition of the bottom sediments of three eutrophic lakes, a raw source for the production of sapropel with optimal organic and mineral composition is identified in this article. A method for processing bottom sediments is proposed. The resulting sapropel product is used for pre-sowing treatment of vegetable seeds. The results of chemical analysis of organomineral bottom sediments of three eutrophic lakes of the Kyzylzhar district of the North Kazakhstan region showed that the bottom sediments of Lake Penkovskoye are characterized by an increased content of organic matter, humus and mineral composition necessary for plant growth and development. The possibility of separating sapropelic product from bottom sediments of eutrophic lakes is shown. Laboratory tests conducted on the variable use of sapropel product, beet seeds of the Bordeaux 237 variety for germination and germination energy showed that the content of 1.6 g /dm3 in sapropel solution is sufficient to increase the germination energy of vegetable seeds by 2 times, and germination by more than 50%.