Object of study of this work is pH and capacity of nutrients in the ground, especially in locations with decanting plant in Hodrusa-Hamre, meadow under the hill Kurinec and Belusske Slatiny. Decanting plant, Hodrusa-Hamre is made up of flotation waste, meadow under the hill Kurinec serves for mowing and building stone is mined in Belusske Slatiny. We were qualifying ph and concentrations Ca, K and Mg in single concentrations of Azotic Acid in the field extract Mehlich III. We found out that acidity of the ground with the raising concentration HNO3 is raising and number of nutrients is changing under the effect of acid. We noticed that the highest acidity of the ground without adding HNO3 was in the Kurinec area. Adding of 0,5M HNO3, the acidity raised about 54,6% un this area. Acid influences concentration of macronutrients in the ground. In the case of calcium, we noticed the highest number of nutrients after adding 0,5M HNO3. The highest growth of magnesium was because of 0,5M of Azotic Acid as well. In the case of potassium, acid produced decreasing of concentration.