Determination of the Alkalinity of Tokat-Kazova Soils

Authors : Kadir SALTALI

Pages : 657-664

View : 23 | Download : 10

Publication Date : 1999-07-01

Article Type : Research Paper

Abstract :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 insert ignore into journalissuearticles values(except profile A3);. 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 insert ignore into journalissuearticles values(Kg);, calculated from the experimental ESR - SAR values, varied between 0.0041 and 0.0264. The highest value insert ignore into journalissuearticles values(0.0264); was found at 30-60 cm, and the lowest value insert ignore into journalissuearticles values(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.
Keywords : Turk J Agric For, 23, 1999, 657 664 Turk J Agric For, vol 23, iss EK3