Where do plants' macro nutrients come from?

Plants obtain their macronutrients—nitrogen, phosphorus, and potassium—from the soil. These nutrients are present in the form of minerals and organic matter, which plants absorb through their roots. Additionally, some plants may benefit from fertilizers that provide these essential nutrients in concentrated forms. Overall, a healthy soil ecosystem plays a crucial role in supplying plants with the macronutrients they need for growth and development.