Articles | Volume 7, issue 4
Solid Earth, 7, 1023–1031, 2016
https://doi.org/10.5194/se-7-1023-2016
Solid Earth, 7, 1023–1031, 2016
https://doi.org/10.5194/se-7-1023-2016

Research article 11 Jul 2016

Research article | 11 Jul 2016

Fixation kinetics of chelated and non-chelated zinc in semi-arid alkaline soils: application to zinc management

Theophilus K. Udeigwe et al.

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Short summary
Micronutrient fixation leads to the reduction of plant-available portions. This study examined the fixation kinetics of chelated and non-chelated zinc (Zn) in semi-arid soils. About 30 % more Zn was fixed in the non-chelated system in the first 14 days. Slope of change of Zn to Cu (i.e., Cu–Zn) was higher than other micronutrients. Zn fixation kinetics were better described by a power-function model. Tools developed from this study will be used to advance micronutrient management.