The aim of our study was to estimate the influence of mineral fertilization on the contents of
various copper and nickel forms in soil. It was based upon a field experiment made up of ten
plots. In average soil samples taken in 2002-04, the pseudo-total copper and nickel content
was determined. Chemical forms of these metals, by modified BCR method, were also
determined.

A field study was conducted at the Agricultural Technical High School in Białystok, Poland,
to determine the influence of mineral fertilizer application on the various zinc forms in the
soil. The average zinc content of the soil samples taken during 2002-2004 and its chemical
forms were determined by modified BCR method. The zinc content in particular fractions can
be arranged quantitatively (average values) as follows: F2 (18%)> F3 (17%)> F1 (15%). The
accumulation of studied metal was not observed, however after the third year of experiment …