Summary

The fermentation residue of biogas production is a hazardous waste, this is why it is essential to make a complex investigation of its agricultural use. In 2007, a field trial was set up near to Nyírbátor, Hungary. They objected to clear how different dosages of biogas fermentation residues in the soil affect the nutrient- and toxic element content of soil. In this paper we especially introduce the results of soil extraction with 0.01 M dm^-3 CaCl₂ and of the ICP analysis after that.

Key words: biogas fermentation residue, utilization is the agriculture, plant nutrition, easily soluble element contents of soil