Explain macro and micro under plants nutrition
In the context of plant nutrition, "macro" and "micro" refer to the two categories of essential nutrients that plants require for optimal growth and development.
Macro nutrients, also known as macronutrients, are required by plants in relatively large quantities. The three primary macronutrients are nitrogen (N), phosphorus (P), and potassium (K), often referred to as NPK. These nutrients are involved in crucial plant functions, such as photosynthesis, cell division, and the production of proteins and enzymes. Additionally, macronutrients include secondary nutrients like calcium (Ca), magnesium (Mg), and sulfur (S), which are needed in moderate amounts. These macro nutrients are typically obtained from the soil or through the application of fertilizers.
On the other hand, micro nutrients, also called trace elements or micronutrients, are only needed by plants in small quantities. Despite their low requirement, they are just as vital as macronutrients for proper plant growth. Micronutrients include elements like iron (Fe), manganese (Mn), zinc (Zn), copper (Cu), molybdenum (Mo), boron (B), and chlorine (Cl). Each micronutrient serves specific functions in different metabolic processes within the plant, such as enzyme activation, photosynthesis, cell wall formation, and nutrient transport.
It's important to note that while both macro and micro nutrients are necessary for plants, the primary difference lies in the amount required for optimal growth. Macro nutrients are needed in larger quantities, while micro nutrients are required in smaller amounts. A proper balance of both macro and micro nutrients is essential to maintain healthy and productive plants.