Effect of Magnesium Fertilizers Based on Natural Brucite on the Acid-Base Properties of Soils in Growing Potatoes

The results of field studies on the effectiveness of the use of magnesium fertilizers of the “AgroMag” brand produced on the basis of the natural mineral brucite on the dynamics of acid-base properties of gray forest soils are presented. It was found that the use of magnesium fertilizers in increasing doses together with a complete mineral fertilizer had a positive effect on the change in the magnesium regime, the level of acidity of the soil solution and the Ca : Mg ratio, which contributed to an increase in the productivity of the agrocenosis. It was revealed that the optimal dose of “AgroMag” fertilizer for potato cultivation was 80 kg/ha, which contributed to obtaining the highest yield increase of 17.0–20.3% compared to the background variant.