Szukana fraza: [Abstract = "In pot experiments the influence of Zn and Cu fertilisation on the yield quantity and quality of the plants grown on the muck taken from 2 postbog soils on lacustrine chalk\: organic muck soil and limnic\-muck soil, was compared. The experiments were conducted in the years 2000\-2002 and each year the pots were filled with a new muck material. The main crop included\: maize \(2000\), spring barley \(2001\), spring wheat \(2002\)\; and after crop\: mustard \(2000\), rape \(2001\) and oats \(2002\). Zinc dose was 18 mg Zn kg\-1 soil dry matter and copper \? 9 mg Cu kg\-1 soil dry matter."]