NPKn
NPKn, often referred to as NPK, is a common designation for a fertilizer formulation that provides the three primary macronutrients essential for plant growth: nitrogen (N), phosphorus (P), and potassium (K). The letters N, P, and K represent the chemical symbols for these elements. Fertilizers are typically labeled with a three-digit number, such as 10-10-10 or 20-5-10, which indicates the percentage by weight of available nitrogen, phosphorus (expressed as phosphate, P2O5), and potassium (expressed as potash, K2O) in the product, respectively.
Nitrogen is crucial for vegetative growth, promoting the development of leaves and stems and playing a key