Articles | Volume 7, issue 1
https://doi.org/10.5194/se-7-311-2016
https://doi.org/10.5194/se-7-311-2016
Research article
 | 
24 Feb 2016
Research article |  | 24 Feb 2016

Examining the fixation kinetics of chelated and non-chelated copper and the applications to micronutrient management in semiarid alkaline soils

T. K. Udeigwe, M. B. Eichmann, M. C. Menkiti, and N. Y. O. Kusi

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Short summary
Fixation pattern and kinetics of chelated and non-chelated Cu compounds in semiarid soils were examined. 22% more Cu was fixed in the non-chelated system within the first 14 days (difference of only 7% by day 90). The slope of change in Cu in respect to other nutrients was higher in the non-chelated system. Fixation of Cu was better described by the power function and second-order models in the non-chelated and chelated systems, respectively. Findings are vital for improved nutrient management.