Abstract
This study was carried out to determine the changes in soil urease enzyme activity and the relationship between its and some properties of soil as a result of application of organic wastes to soils having different pH. The experiment was conducted as a pot experiment under controlled conditions in a greenhouse and 3 repeats with soils having 3 different pH (acid, neutral, alkaline) values. As organic materials; tobacco processing waste (TW), rice husk compost (RHC) and municipal solid waste (MW) were used in four different rates (0.0, 2.5, 5.0 and 7.5%). After a one-month incubation period, the plant was grown in the prepared pots. At the end of the experiment, urease enzyme activity was determined in soil samples taken from pots and the highest enzyme activity was determined in acid soil with 5.0% TW application, in neutral soil with 7.5% MW application and in alkaline soil with 7.5%TW application. Moreover, statistically significant relationships were found between soil urease enzyme activity and soil pH, EC, soil organic matter, and lime content.
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