We offer two methods of analysis depending on the intended use of the fertilizer.
 
-  Compound Edaphic Fertilizers: Content of acid-soluble nutrients (soil fertilizers in general, agricultural lime, dolomite lime, agricultural gypsum, etc.), determination of the total content of elements by means of an acid extract:  Macro- + Micronutrients: NO3, NH4, P, K, Ca, Mg, SO4, Na, Fe, Mn, Zn, Cu, B + pH, CE, Cl- (in extract in water) +% Insoluble in Acid

 
- Soluble fertilizers for fertigation:  Content of water-soluble nutrients, direct determination of elements by dilution with deionized water: Macro- + Micronutrients: pH, CE, NO3, NH4, P, K, Ca, Mg, SO4, Na, Cl-, Fe, Mn, Zn, Cu, B