Abstract

DYNAMICS OF CHANGES IN MICROORGANISMS IN RHIZOSPHERE ZONE OF LAWN GRASSES IN THE SECOND YEAR AFTER THE APPLICATION OF SEWAGE SLUDGE

Highlights

  • Transportation and its risks cause that urban soil needs constant protection and reclamation treatments because of its progressive chemical degradation, which leads to permanent and progressive deterioration of their properties [Greinert 2000a]

  • The results indicate that the applied sewage sludge fertilization affected the microbial activity in the rhizosphere zone of the used grass mixtures, but the changes were not statistically significant (Table 2)

  • The largest total number of bacteria was found in April (107.53 1·107 cfu/g of soil DM), and in July and October, the number of these microorganisms were similar (5.57 and 4.46 1·107 cfu/g of soil DM respectively)

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Summary

Introduction

Transportation and its risks cause that urban soil needs constant protection and reclamation treatments because of its progressive chemical degradation, which leads to permanent and progressive deterioration of their properties [Greinert 2000a]. In the view of the growing deficit of organic matter in soils, it is necessary to look for other sources of organic matter and nutrients [Gondek and Filipek-Mazur 2005], which would be suitable for fertilization of urban areas. Sewage sludge has different properties, which depend on the quantity and quality of in a view of the growing deficit of organic matter in soils, it is necessary to look for other sources of organic matter and nutrients [Gondek and Filipek-Mazur 2005], which would be suitable for fertilization of urban areas.

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