växtnäringsämne

Växtnäringsämne, or plant nutrient, refers to any substance that is essential for the growth, development, and reproduction of plants. These nutrients are typically categorized into two main groups: macronutrients and micronutrients. Macronutrients are required in larger quantities and include carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Micronutrients, on the other hand, are needed in smaller amounts and consist of iron, manganese, zinc, copper, molybdenum, chlorine, and boron.

Plants obtain these nutrients through their roots, absorbing them from the soil. The availability of these nutrients in the soil can significantly impact plant growth and health. Soil fertility can be managed through various practices, such as crop rotation, the use of organic matter, and the application of fertilizers.

Nutrient deficiencies can lead to stunted growth, discolored leaves, and other symptoms of stress in plants. Conversely, an excess of certain nutrients can also be detrimental, leading to nutrient toxicity. Therefore, maintaining a balance of nutrients in the soil is crucial for optimal plant growth.

In addition to soil, plants can also absorb nutrients from the air and water. For example, carbon dioxide is a primary source of carbon for plants, and water provides hydrogen and oxygen. However, the primary source of nutrients for most plants remains the soil.