Environmental & Energy
Soil Analysis
Analysis of Compound Fertilizers by NIR Spectroscopy Without compound fertilizers, industrial agriculture and thus the supply of food to a large part of the human population would be hardly conceivable. Fertilizers containing nitrogen (N), phosphate (P) and potassium (K) – the core nutritional elements – are called compound fertilizers or NPK fertilizers. For the application it is important to determine the total nitrogen, total phosphorus and water-soluble potassium content in granulated NPK fertilizers. In addition to the sum parameters (e.g. total nitrogen), the individual components such a
