Abstract:

In this study, the physico-chemical and biological properties of soils taken from hazelnut cultivation areas in the provinces of Ordu and Giresun were determined and the relationships between the biological properties and the physico-chemical properties of soils were evaluated. Most of the soil samples taken from hazelnut grown areas in Ordu and Giresun region have fine textural class, acidic reaction, non-saline, low lime content, sufficient organic matter content. Biological properties of soils, soil respiration, microbial biomass C, dehydrogenase and catalase activity and other physico-chemical properties of soil between relationship investigated. According to the results, it was determined that the soil properties that affect the soil biological properties are the most important pH, lime and organic matter. Significant positive correlations between soil organic matter content and pH were determined. As a result, it is thought that the applications to eliminate the acidity in the region will have positive effects on the biological properties of soils as well as the intake of nutrients. Although the organic matter level of the soils is sufficient in the study, it is necessary to conservation the organic matter content as an important parameter in terms of soil sustainability, soil quality and viability.

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