Özet:

A detailed soil survey has become necessary for precision farming practices and accurate production planning in Haymana Research and Application Farm of Faculty of Agriculture in Ankara University. Sixty five soil samples were collected to investigate the fertility of farm soil. Physical, chemical properties and nutrient content of the soil samples were analysed. According to these analysis; the majority of soils were found heavy structured, slightly alkaline, saltless, limy and they contain insufficient amount of organic substance. Total nitrogen (N), extractable potassium (K), zinc (Zn) and copper (Cu) contents are found sufficient while their extractable phosphorus (P) (58.91% of the soil), extractable iron (Fe) (All of the soil), extractable manganese (Mn) (All of the soil) and water-soluble boron (B) (95.91% of the soil) content are found inadequate. Based on the results of correlation analysis, it is determined that there is a negative correlation between clay-silt, clay-sand, sand-Fe, lime-Zn-Cu while there is a positive correlation between lime-Fe, sand, OM- EC, OM- B, OM- Fe, OM- Zn, pH- EC, EC- K, EC- B, EC- Fe, EC- Zn, EC- Cu, EC- Mn, P- K, P- Zn, P- Cu, K- B, K- Zn, K- Cu, K- Mn, B- Fe, B- Zn, B- Cu, B- Mn, Fe- Zn, Fe- Cu, Fe- Mn, Zn- Cu, Zn- Mn..