The influence of liming and mineral fertilization on soluble forms of micronutrient content in grey-brown podzolic soils formed from loess

Abstract

The research was carried on a permanent fertilization field in the area of Rzeszow Foothills Region, with Haplic Luvisols formed from loess. The following plants were cultivated in a 4- year cropping system: pasture sunflower, winter wheat, potatoes and spring barley. Various mineral fertilizers NPK + Mg constans and various mineral fertilization NPK + Mg Ca constans were applied in the experiment. Liming was applied in form of CaO (at the dose of 2.86 t Ca∙ha -1 ). The experiment included 14 fertilizer objects, in 4 replications according to the method of random sub-blocks. Analysis of variance (ANOVA) was applied in statistic processing for a double classification: liming and mineral fertilization – independently of liming.

The liming, NPK fertilization and combined effect of theses treatments had no essential effect on the content of Fe, Mn, Cu, Zn in Ap and Bt horizons of loessial soils.