Study on the zeolite substrates mikroflora
2000
Manolov, I. (Vissh Selskostopanski Institut, Plovdiv (Bulgaria)) | Stoilov, G. | Najdenov, M.
The mikroflorra of four zeolite substrates differ in degree of saturation with nitrogen (0.1, 0.2, 0.4 and 0.8% N) raw zeolite and fluvy soil, as a control were studied. The study included one substrate recultivated with nutritional elements after its exhausting in result of four years exploitation. The mikroflora of the substrates and the soil was established by evaluation of the amount of basic groups of microorganisms determining the biological activity of the soil. Minimal amounts of microorganisms have been found in raw zeolite. The biocenose of the zeolite substrates was not different from the tipical soil biocenose. The highest total amount of microorganisms have been found in the substrate containing the lowest amount of nitrogen (1.0%) - 5.31 million microorganisms per 1 g dry material compared to the control 3.49 million microorganisms per g soil. The recultivated substrate shows also high activity - 3.93 million microorganisms per 1 g material.
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