Natural and climatic conditions of the green zone of Nur-Sultan (Kazakhstan) are unfavorable for tree and shrub species due to low soil fertility. sharply continental climate and other factors. The purpose of the research was to choose an assortment of stable introducents for Nur-Sultan green zone. The monitoring of growth and condition of artificial plantations included the selection... https://parisnaturalfoodes.shop/product-category/vitamin-b-12-5000mcg/