Mineralogical Soil Complex Indicates an Effectiveness of Fertilizers in Agriculture

Abstract

The mineralogical composition of clay loamy agro-gray soil and the content of nutrient elements in the soil and its fractions were determined. This allowed estimating the nutrient supply and natural productivity of the soil. The long-term use of soils with the application of mineral and organic fertilizers affected the soil mineralogy: both aggradation and degradation processes were observed. The fertilizing system recommended for application to the agro-gray soil did not affect the crystal-chemical parameters of soil minerals. However, soil acidification and changes in the humus fractional composition towards increasing the content of fulvic acids show intensive degradation of soil minerals, which can lead to adverse consequences for soil fertility.