Tea and hazelnut cultivated soils are mainly distributed in Black Sea region of Turkey. Low pH value is a primary problem for those soils; therefore, farmers apply lime once every 3–4 years to raise the pH value of soil. Gyttja is highly rich in organic matter () and lime (), and it is a low cost and considerably abundant in Afşin-Elbistan Coal Basin (estimated reserve is around billion tons). The aim of this study was to determine the phosphorus (P) sorption characteristics of gyttja, and its efficiency on P availability and soil’s pH value. |