MICROBIOLOGICAL AND BIOCHEMICAL PROPERTIES OF SOIL CONTAMINATED WITH ZINC AND FERTILIZED WITH FERMENTED BARK, KERATIN AND CELLULOSE

摘要

In a pot experiment, the effect of innovative substances (fermented bark, keratin, cellulose) in restoring the microbial balance of soil contaminated with zinc, was analysed. Soil samples were contaminated with zinc (ZnCl2) at doses of 0, 150, 300, 600, and 1200 mg Zn2+ kg(-1), and then, with an organic substance in the form of fermented bark, keratin and cellulose. The study was conducted in two series: in the first one, the soil was sown with oats, and in the second one, it was left without sowing.