Articles | Volume 7, issue 4
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, Madeleine Eichmann, and Matthew C. Menkiti

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Cited articles

Abbas, M. H. and Salem, H. M.: Kinetics of iron retention by typic torriorthent and typic haplocalcid soils supplied with some micronutrients, Ann. Agr. Sci. Mosh., 49, 301–311, 2011.
Adriano, D. C.: Trace elements in terrestrial environments: biogeochemistry, bioavailability, and risks of metals, Springer Science and Business Media, New York, 2001.
Allen, V. G., Brown, C. P., Kellison, R., Segarra, E., Wheeler, T., Dotray, P. A., Conkwright, J. C., Green, C. J., and Acosta-Martinez, V.: Integrating cotton and beef production to reduce water withdrawal from the Ogallala Aquifer in the Southern High Plains, Agron. J., 97, 556–567, 2005.
Alloway, B. J. (Ed.): Micronutrient deficiencies in global crop production, Springer Science and Business Media, Netherlands, 2008.
Alloway, B. J.: Soil factors associated with zinc deficiency in crops and humans, Environ. Geochem. Hlth., 31, 537–548, 2009.
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.