This publication presents the results of studies of the bottom sediments (sapropels) of lakes in the North Kazakhstan region. The purpose of this study is to identify the possibility of using sapropels from the lakes of the region in obtaining innovative fertilizers for organic farming. For this purpose, geoinformation technologies, field research, statistics, and chemical and chemical-analytical methods were used (automated spectrometric methods of segmented flow analysis, photocolorimetry, flame photometry, and inductively coupled plasma atomic emission spectrometry). During the first stage of this study, the bottom sediments of three lakes in the region, which were at different stages of eutrophication, were selected to study the chemical composition of the raw materials. The sapropel of Lake Penkovskoye had optimal indicators. Further, an analysis of the territory of the region for the development of agrotourism was carried out. The aim of this study is to substantiate the prospects for the use of sapropel in the production of innovative fertilizers. The natural origin of sapropels allows them to be used in the production of environmentally friendly and safe products. Reducing the use of artificially synthesized mineral fertilizers will make agriculture and the environment safe and sustainable. This will further contribute to the development of agrotourism in the region.

The conducted research is aimed at assessing the current state of the tourist and recreational potential of the lake system in the region of North Kazakhstan (Kazakhstan). The research included the relationship between the distribution and natural diversity of reservoirs and landscapes and the density of the transport network of the studied region in the administrative division of the region. The aim of the research undertaken is to indicate the spatial differentiation of the conditions for the development of tourism in relation to the degree of lake density and transport accessibility. The quantitative and qualitative characteristics of the lakes in terms of spatial diversity and transport accessibility in the region were presented. The analysis of the natural and recreational potential, with the use of statistical methods, satellite images, comparative analysis and field studies, made it possible to identify lake ecosystems that are already used or recommended for use as objects in tourism, as well as in the national economy. The analysis of the road network allows to conclude that its density, despite the higher indicators than the national average, does not fully allow the use of the region's tourist potential and may constitute a barrier to its development.

The solution to the problems of enhancing the yield of grain crops in current agriculture development is not conceivable without applying new land processing technology and using mineral fertilizers. Simultaneously, to obtain environmentally friendly products in organic farming, it is required to use mineral organic fertilizers in large quantities. For these purposes, we developed manufacturing technology and proposed the extract of “Saprolin.” This extract, obtained from organogenic lake storage, is supposed to be used for pre-sowing seed treatment, contributing to providing the planting material with biologically active substances, macro- and microelements, and natural soil conservation. During the production of the extract from the obtained source material, solutions of different concentrations were prepared, and their features (viscosity, density, electrical conductivity, refractive index, and pH of the medium) were studied. Using the wheat seeds “Novosibirskaya-31” and barley “Astana-2000” as an example, under the influence of solutions of the obtained extract, the germination and vigor of seeds were determined. As it was proved in experiments, the obtained extract is a good germination stimulant for grain crop seeds. It has a greater effect on seed vigor. Nevertheless, seeds with high vigor are the most viable, give good yield, and provide high-quality products. The germination rate significantly affects plants’ survival, shows the speed of their growth, and characterizes the ability of seeds to germinate in the field evenly (good uniformity). The research determines the germination and vigor of seeds using processing solutions of different concentrations. The research shows that the obtained extract of “Saprolin” increases the germination of seeds of grain crops by 1%–9% and vigor by 12%–19%. The extract of “Saprolin” is classified as a herbal stimulant containing a water-soluble natural mineral substance for improving plant nutrition.

Research has been conducted on the development of an innovative organomineral fertilizer based on local lake resources as a stimulator of germination and growth of crops, as one of the factors in achieving the goal of environmental sustainability. The results obtained are based on the environmental friendliness of the technology, increasing yields, and obtaining environmentally friendly products. This, in turn, will not only save mineral resources but also make it possible to use the resources from the bottom sediments of local lakes, and their rational extraction will contribute to the sustainable development and restoration of lake ecosystems. This article highlights the results of laboratory and field studies on the use of sapropel extract at the stage of pre-sowing seed treatment obtained by extraction of bottom sediments from lakes in Northern Kazakhstan. Solutions of aqueous alcohol extract of sapropel extract with concentrations of 0.4, 0.8, 1.2, 1.6, 2.0 g/L and table beet seeds (Beta vulgaris L.) of Bordo 237 variety were used as objects of research. Statistical analysis of laboratory experience data, based on the determination of germination energy and seed germination, allowed us to identify the optimal concentration of sapropel working solution for pre–sowing seed treatment—1.6 g/L. The index of germination energy and germination of seeds during pretreatment with sapropel extract of this concentration was 40% and 50%, respectively. This contributed to an increase in germination energy by almost 2 times and in seed germination by more than 40%. Pre-sowing treatment of seeds with sapropel extract at a concentration of 1.6 g/L in a field experiment contributed to the improvement of biometric indicators of beet fruits, such as diameter, length, and weight. The results of the data on fetal weight of the experimental variant compared with the control were 27% higher, and they were 26% and 32% higher compared with other experimental variants. In the experimental group, the highest yield index was also established, which is 2.15 times, or 53%, higher than the control, which emphasizes the effectiveness of pre-sowing seed treatment with the resulting sapropel suspension. A patent of the Republic of Kazakhstan was issued for the method we developed for obtaining a sapropel product for pre-sowing treatment of seeds: “A method for obtaining a sapropel product for pre-sowing treatment of vegetable seeds”. The research presented in the article confirms its effectiveness. The use of this product in pre-sowing seed treatment reduces the number of agrotechnological operations and costs, which makes this method more efficient and economically beneficial for the agricultural industry. Thus, the principle of food security will be implemented, contributing to the preservation of sustainable development and having a positive impact on the health of the population.