NPK (14 6 21)

NPK refers to the three essential macro-nutrients that are required for the healthy growth of plants. The numbers associated with NPK represent the percentage of each nutrient in a fertilizer mixture. In the case of NPK (14-6-21),These three nutrients are vital for plant growth, and the proportions in which they are present in a fertilizer can be adjusted based on the specific needs of different plants at various stages of their growth cycle. In the case of NPK (14-6-21), it is a fertilizer blend that is relatively high in potassium, which can be beneficial for promoting flowering and fruiting in plants.