Annual seedlings of silver birch ( Betula pendula Roth.), grown from seeds of autumn and spring sowing period, were analyzed. Planting material was kept in protected ground. Before sowing, various growth substances were incorporated into the soil - mineral and organic fertilizers, forest soil. It was revealed that autumn sowing increased the height of seedlings 1.031.66-fold in the variants compared to the control, except for the variants with the use of nitrogen and phosphorus fertilizers, where the largest number of plants per unit area was observed. In the variants with Humatophosphate, boric acid, Trichocin, humus and forest soil, from 60 to 100 % of seedlings reached standard values in a year. A similar experiment with the same growth substances, but spring sowing of seeds, showed a significant lag in seedling growth. The use of nitrogen fertilizer in spring, in contrast to the autumn period, had a positive effect on plant height, annual seedlings had the highest height in the experiment - 14.1 cm. Seedlings in variants with humus and forest soil also had good indicators. All variants overtook the control seedlings in height by 1.062.68 times. Therefore, the time of sowing seeds is important - all indicators of autumn seedlings significantly exceed the similar ones of spring seedlings. This fact is explained by several reasons: during the autumn period, the seeds are sown freshly harvested, they undergo pre-sowing preparation (snowing and stratification) in natural conditions, the seeds are not stored, in case of violation of which the seeds significantly lose their germination capacity. In addition, the seeds begin to germinate and shoots begin to grow much earlier than if they were sown in the spring. Shoots are not exposed to late spring frosts, as they are protected by covering material.

Climate change, man-made and anthropogenic factors have negatively affected the flora, therefore, the reserves of wild-growing grasses in nature are sharply reduced. For this reason, the mass cultivation of medicinal herbs on plantations is becoming an important task. Aim of research – development of an environmentally friendly and rational technology for growing medicinal herbs on plantations in the northern region of Kazakhstan. Materials and methods. The research was carried out in the Akmola region, the following species of medicinal herbs were selected as the objects of research: Echinacea purpurea Moench, Salvia officinalis, Origani vulgaris, Népeta catária, Adónis aestivális, Ínula helénium, Thymus serpyllum. Nitrogen fertilizers were used for the growth of the medicinal herbs, while the soils on the control plots did not contain any fertilizers. Results. It was found that the use of fertilizers increased the number of seedlings in all studied plants by 6.3 – 62.8% compared to the control. The increase in plant’s growth, development and height was observed in Breckland thyme, catnip, and summer Adonis. The rest of the medicinal herbs growth and height were smaller than that of the control. The crop yield of catnip, oregano, sage, Breckland thyme and summer Adonis in the experimental plot was higher by 1.7-35.8 than that of the control. It has been determined that purple coneflower and elfdock are best grown without addition of plant growth substances. Conclusion. The application of fertilizers to the soil has a positive effect on the growth of the studied species of medicinal plants, except for purple coneflower and elfdock.