The plant nutrient essential for the formation of tubers is

The plant nutrient essential for the formation of tubers is potassium. Potassium plays a vital role in many plant processes, including the development of strong stems and roots, photosynthesis, and the movement of water and nutrients through the plant. When it comes to tuber formation, potassium helps to increase the size, quality, and number of tubers produced. A lack of potassium can result in poor tuber formation and reduced crop yields. Therefore, it is important for farmers to ensure that their potato plants have sufficient potassium throughout the growing season.