[ËkujbÉ¨ÊÉ¨f]), is the sixth largest city in Russia and the administrative center of Samara Oblast. It is situated in the southeastern part of European Russia at the confluence of the Volga and Samara Rivers on the east bank of the Volga.amara is the home of Samara State Aerospace University (SSAU), one of Russia's leading engineering and technical institutions. SSAU faculty and graduates have played a significant role in Russiaâs space program since its conception.
Macronutrients are required by the plant in large quantities for basic plant growth and development. The macronutrients include: nitrogen, phosphorus and potassium. Secondary nutrients are required in moderate amounts and are less likely to limit crop growth. These nutrients include: calcium, magnesium and sulphur. 1  Nitrogen. 2  Phosphorus. 3  Potassium. 4  Calcium. 5  Magnesium. 6  Sulfur.
Nitrogen (N) is essential for plant growth and is part of every living cell. It plays many roles in plants and is necessary for chlorophyll synthesis. Plants take up most of their N as the ammonium (NH 4 +) or nitrate (NO 3 -) ion.otassium (K) is one of the essential nutrients and is taken up in significant amounts by crops. Potassium is vital to photosynthesis, protein synthesis and many other functions in plants. Itâs classified as a macronutrient, as are nitrogen (N) and phosphorus (P). Plants take up K in its ionic form (K +).