Evaluation of the productivity status of agricultural lands under different soil management by geostatistic method in geographical information system

In this study; It is aimed to examine the soil quality and distribution conditions areas of the research and production of the central campus of the Eskişehir Transition Zone Agricultural Research Institute Directorate. Analytical hierarchical process (AHP), which is one of the multi-criteria decision making methods, and standard scoring functions were used in the evaluation of soil properties, and soil quality index (SQİ) was determined by linear combination technique. There is no salinity problem in soils with slightly alkaline reaction. In 19.01% of the area, the lime content of the soils was classified as too calcareous, while the organic matter content was determined as low in 70.25% of the area. Soils are generally fine textured and 69.84% of them are determined in clay texture class. The variability in macro and micro nutrient contents was found to be quite high. While the bulk density values of the soils were between 1.07 g cm-3 and 1.59 gr cm-3, the field capacity and wilting point varied between 14.85- 46.17%, 9.53%-37.18%, respectively. Aggregate stability was determined at high levels due to increased clay content. In the evaluation made using AHP, the physical parameters from the soil properties were weighted as the highest (0.525). Clay percentage (0.320), organic matter (0.389) and phosphorus (0.269) were determined as the highest weighting properties among the physical, chemical and nutrient quality indicator groups, respectively. According to the quality index values obtained as a result of the study; 6.6% of the area was found as Class I (very low), 68.6% as Class II (low), and 24.8% as Class III (good).