stoðefni
Stoðefni, often translated as structural materials or support materials, refers to substances or substances that provide essential nutrients to plants and animals, enabling their growth, development, and overall well-being. In the context of plants, stoðefni encompass the mineral elements absorbed from the soil, such as nitrogen, phosphorus, potassium, and calcium, as well as carbon dioxide from the atmosphere and water. These nutrients are vital for photosynthesis, cell wall formation, enzyme activity, and numerous metabolic processes. Without adequate stoðefni, plants exhibit stunted growth, reduced yield, and increased susceptibility to diseases.
For animals, stoðefni include macronutrients like carbohydrates, fats, and proteins, which are essential for energy production,