STATE OF SOIL FERTILITY IN THE AREA OF THE POŽAREVAC CITY

Abstract

Soil analysis provides information about the quality of the soil and the input of nutrients that are needed to make the soil better and obtain a high crop yield. The research in this paper included the analysis of fertility parametars of soil in wider territory of the Požarevac city during 2017 and 2022 year. Soil analysis shows that average soil acidity, i.e. its pH value of the aqueous soil solution (pH – H2O), in 2022 was reduced by 0.28 compared to 2017. On other hand, the substitution acidity (pH – KCl) was reduced by 0.49 after 5 years. The results for CaCO3 show that the soils are generally carbonate-free or weakly carbonated , well supplied with humus and the percentage of contetnt of N decreased by 21.91% in the five-year period. Low content of easily accessible phosphorus was identified in both year in over 50 percentage of the soil samples while mostly soil samples are well supplied with easily accessible potassium.