Effect of rhizosphere on release rate of zinc in selected calcareous soils of Chaharmahal-va-Bakhtiari province

摘要

Rhizosphere is a small zone with different biological and chemical properties from bulk soil. In this research, kinetics of zinc (Zn) release was compared in wheat (Rowshan Back Cross) rhizosphere and bulk soil in 10 calcareous soils by using rhizobox at greenhouse conditions. The rhizosphere and bulk soil samples were extracted with DTPA-TEA for 1 to 504 h at 25±1 0C. In addition, available Zn was evaluated by chemical extractions (DTPA-TEA, AB-DTPA and Mehlich 3). Results showed that the amount of available Zn, cumulative released Zn and rate of Zn release in the rhizosphere soils were significantly (p Scientific Publications Commission - Health Ministry Scientific Publications Commission - Science Ministry Yektaweb Company Site Keywords ?????, Academic Journal, Scientific Article, ???? ????? ??, ???? ????? ??, ???? ????? ??, ???? ????? ??, ???? ????? ??, ???? ????? ??, ???? ?? Vote ? 2015 All Rights Reserved | Journal of Science and Technology of Greenhouse Culture -Isfahan University of Technology