This research was conducted in order to determine the alkalinity of soils in Kazova and the Kg values which are an indicator of alkalinity. Twenty-four soil profiles were studied for this purpose. None of these profiles exhibited any alkalinity problem for 0-15 cm soil depths (except profile A_3). However, 3 profiles exhibited an alkalinity problem for 15-30 cm, 12 profiles for 30-60 cm, 11 profiles for 60-90 cm, and 6 profiles for 90-120 cm depths. The ESP values calculated for 30-60 cm were highest, followed by those for 60-90, 90-120, 15-30, 0-15 cm in decreasing order. The Gapon Coefficient (Kg), calculated from the experimental ESR - SAR values, varied between 0.0041 and 0.0264. The highest value (0.0264) was found at 30-60 cm, and the lowest value (0.0041) was found at 0-15 cm depths. The average Kg value of every layer of the profiles calculated for 1995 was higher than that for 1994, indicating a general increase in alkalinity of the study area soils. Hydraulic conductivity values, measured with disturbed soil samples, were extremely low at 30-60 cm depths. It was likely that the dispersion of the clay fraction decreased the hydraulic conductivity of the soils in this zone.
SALTALI, KADİR and DERİCİ, M. RIFAT (1999) "Determination of the Alkalinity of Tokat-Kazova Soils," Turkish Journal of Agriculture and Forestry: Vol. 23: No. 9, Article 16. Available at: https://journals.tubitak.gov.tr/agriculture/vol23/iss9/16