Contribution of Microorganisms to Zinc Immobilization in Soil

agar plate amended Inoculated analyzed for Zn atomic absorption spectrophotometry autoclaving autoradiography bacteria Brookston clay loam broth upon Zn cation exchange capacity cell chelate chemical and physical colonies culture of Zn-immobilizing denatured nutrient broth energy and nutrient environment enzyme exposure of X-ray fulvic acids fungi gamma radiation gram-positive heavy metal Houghton muck IMMOBILIZATION IN SOIL immobilized Zn inactivation influence of microorganisms Inoculated and amended isolated Knezek level of Zn metal ions mgkg-1 Zn microbial microbial activity microbial population micronutrients microorganisms and denatured muck soil nitrification organic matter Penicillium Percolate perfusion reservoir periodically and analyzed Phase contrast photomicrograph plate technique pollutants pure culture reservoir was sampled Rubicon sand soil sampled periodically sewage sludge soil column contained soil microorganisms soil perfusion apparatus soil perfusion system soil perfusion units soluble sorb Sterile and amended sterilized by gamma toxic unamended urease X-ray film Zinc Zn by atomic Zn immobilization Zn removal