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NPK fertilizer is a compound fertilizer containing three key macronutrients necessary for plant growth-Nitrogen, Phosphorus, and Potassium. Nitrogen promotes leafy growth, Phosphorus aids in the development of roots, flowers, seeds, and fruits, and Potassium supports the overall health and vigor of the plant.
The Nitrogen-Phosphorus-Potassium (NPK) ratio in a fertilizer mixture indicates the percentage by weight of each of these nutrients. This ratio is important because plants require different nutrients at various stages of their lifecycle. Understanding the NPK ratio helps gardeners and farmers apply the right fertilizer for their plants' specific need
When used properly, NPK fertilizer can be very helpful. However, excessive use of NPK fertilizers may create both environmental harm and damage to the plants. This is possible because NPK fertilizers can penetrate the groundwater, and if they are not absorbed by the plants, they can contaminate the surface water. That is why it is important to use them sparingly, only based on the needs of the specific crop or plant and the soil.