M.Sc. Tezi Görüntüleme

      The study area covers two geologically different regions which have intensively been carpeted by tea plants in the Eastern Black Sea. The rocks exposed in the region contain considerable amount of trace matals due to Upper Cretaceous massive sulfide formations and Tertiary epithermal mineralizations. Tea plants grow over the soils derived from such mineralized rocks indicate different concentration in Cu, Pb, Zn, Fe, Cd, P, Al, Na, K, S. Most of the analyzed elements except Al shows higher content ratios in basaltic and sedimentary rocks.

      In order to better understand the element distribution processes in tea plants, some experimental studies were undertaken. Young tea plants were planted in small boxes and were applied with Cu, Zn, Cd and Mn element complexes and fertilizes. The effect of fertilizers in element mobility was found to be significant. Especially Amonium sulfate fertilizer increased element uptake of tea plants by lovering pH. Bioavailability coefficents of the applied elements are as follows, Cu: 0.14, Zn: 0.18, Cd: 2.45 and Mn: 0.15. The differences in the amounth of irrigation played an important role in bioavailability and uptake of elements both in soil and tea plants. Cu, Zn, and Mn are relatively easily uptaken by the tea plants from the soils often watered. The amount of water has no effect on Cd uptake.