В статье отражены результаты анализа агроклиматических условий территории Акмолинской области за 30 летний период. Изучены возможности интродукции силосного сорго на основании климатических ресурсов разных сельскохозяйственных зон. Полевые опыты проводились в 2020-2022 гг. в Учебно-научно-производственном комплексе «Элит» Акмолинской области. Результаты представлены по сорту сахарного сорго Капитал. На территории региона прослеживается специфика выпадения осадков в летний период. Наибольшее количество 29,7…32,0 % приходится на июль. Проведено сопоставление межфазных периодов сорго с осадками по месяцам. Критический по водопотреблению период – «выход в трубку» совпадает по времени с июльским максимумом осадков. Биологически доступные ресурсы тепла по сельскохозяйственным зонам являются достаточными для возделывания сахарного сорго. Изучено влияние суховеев, продолжительность которых измеряется «балластными» температурами, которые имели существенное значение для сахарного сорго, только в южной части региона. Просчитана вероятность повреждения растений поздними весенними и ранними осенними заморозками. Агроклиматические ресурсы сельскохозяйственных зон сопочно-равнинной степи Северного Казахстана существенно различаются, что позволяет выращивать скороспелые и среднеспелые сорта и гибриды.

Intraspecific variation in Tanacetum vulgare L. has been documented, but it remains unclear which morphological and anatomical traits differ among localities in Kokshetau State National Nature Park and whether the principal stem and leaf organization remains shared. This study compared flowering plants collected from one locality in each of the park’s five branches. Nine morphological traits were measured in 100 plants (20 per locality), and stem and leaf anatomy was examined in 50 plants (10 per locality). Flower and leaf extracts from one locality were also assessed descriptively by ¹H NMR. Morphological differences among localities were most evident in plant height, leaf dimensions, and flower head number. Plants from Shalkar had the highest mean height (58.70 ± 6.25 cm), leaf width (7.95 ± 1.15 cm), and flower head number per shoot (45.15 ± 13.66), whereas shoot diameter showed no significant difference among localities. Across the pooled sample, plant height was positively correlated with the number of lateral axes (r = 0.781). The principal organization of the stem and the isobilateral structure of the leaf were shared across localities, although pith cell dimensions and selected leaf tissue measurements differed. Flower and leaf extracts produced distinguishable NMR signals, but individual compounds were not identified. By comparing morphology and anatomy across five park localities, this study documents quantitative trait variation within a shared structural pattern and provides a baseline for future comparisons in northern Kazakhstan. Because each branch was represented by one locality and environmental and genetic factors were not measured, the causes of the observed differences remain unresolved.

Local floristic inventories provide baseline data for biodiversity monitoring and conservation in protected areas. This study presents an annotated checklist of vascular plants in the Arykbalyk Branch of Kokshetau State National Natural Park, Kazakhstan, and characterizes their taxonomic composition, life forms, ecological affinities, and practical significance. Route-based surveys conducted in 2025–2026 covered the principal habitats of four forestry units. Floristic relationships were assessed using Jaccard dissimilarities, average-linkage hierarchical clustering, and species intersections. The inventory documented 184 vascular plant species belonging to 135 genera, 46 families, and 24 orders at surveyed localities within the branch. These included 172 native species, 11 alien species (6.0%), and one species recorded only as planted. General analyses were restricted to the native component. Asteraceae was the most species-rich native family, comprising 31 species (18.0%). Perennials accounted for 84.9% of native species, and hemicryptophytes represented 61.0%. Mesophytes and xeromesophytes together comprised 64.5% of the native component. Medicinal plants constituted the largest documented practical-use category, with 93 native species (54.1%). Seven species listed in the national Red Data Book were recorded, along with an additional locality of Hemipilia cucullata. Fifty-two native species occurred in all four forestry-unit lists. Leikovskoye and Nizhne-Burlukskoye showed the greatest floristic similarity, whereas Karauyltobe had the most distinct native species composition. These descriptive findings provide a baseline for further floristic inventories and targeted monitoring of native species of conservation concern and alien plants.

The article presents the results of research on the influence of microbial biopreparations on the growth, development, and forage value of sweet clover (Melilotus spp.) under the conditions of risk-prone agriculture in the Akmola region. The aim of the study was to determine the effectiveness of microbiological agents in organic farming to increase crop productivity and improve the biochemical composition of plants. The field experiments were carried out on heavy loamy chernozem soils at the “Kokshetau Experimental Production Facility” LLP during 2024–2025. Modern microbial compositions were used as biological products to supply plants with available forms of nitrogen and phosphorus and to enhance their stress tolerance. The obtained results showed that the application of biopreparations increased the nutrient content in the dry matter of sweet clover and improved growth parameters compared with the control treatment. The use of biological products in sweet clover cultivation technology enhances crop productivity, improves forage quality, and contributes to the development of environmentally sustainable agroecosystems. The conducted studies confirm the prospects of applying microbial biopreparations as an effective and safe tool for resource-efficient agriculture in the conditions of Northern Kazakhstan.

This article discusses the methods and standards for the use of complex high molecular fertilizer StresStop on potatoes in the conditions of the Akmola region. The article deals with the influence of the complex high molecular fertilizer StresStop on the yield, marketable qualities and biochemical composition of potatoes, depending on the norms of its application and the phase of development of potato plants. During the phase-by-phase treatment with StresStop fertilizer, at the doses recommended by the manufacturing institutions, the content of dry matter, starch and vitamin C in potato tubers changes, while the content of toxic elements in potatoes does not change significantly. A significant effect of a complex high molecular fertilizer on potato yield was determined. The greatest increase in the potato yield +9.1 t / ha in comparison with the control variant was provided by spraying the variant treated with 0.01% StresStop solution in the full germination + flowering phase, where the yield was 17.5. The use of a complex high molecular fertilizer contributes to an increase in the yield, commodity and quality indicators of potatoes, while the study showed that the content of toxic elements in potatoes does not change significantly