Provided herein is a method for fertilizing agricultural soil by applying at least one fertilizer N to the soil, wherein the at least one fertilizer N is applied in combination with a formulation F. The formulation F comprises at least one nitrification inhibitor I and at least one organic solvent S, and the at least one solvent S is selected from ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, diglyme, fatty acid dialkylamides, benzyl alcohol, butyrolactone, propylene carbonate, ethyl hexyl lactate, 2-butoxy ethanol, dimethylsulfoxide, or mixtures thereof. The formulation F is essentially free from 3,4-dimethylpyrazolphosphate.