Improving the efficacy of selenium fertilizers for wheat biofortification

Author:

Ramkissoon ChandneeORCID,Degryse Fien,da Silva Rodrigo C.,Baird Roslyn,Young Scott D.,Bailey Elizabeth H.,McLaughlin Mike J.

Abstract

AbstractIncreasing the selenium (Se) concentration of staple crops by fertilization is a valuable pathway to increase Se in the human diet, thus preventing Se deficiency. A pot trial was set up to investigate whether the application of 3.33 µg kg−1 of Se (equivalent to 10 g ha−1) to wheat can be made more efficient by its co-application with macronutrient carriers, either to the soil or to the leaves. In the soil, Se was applied either on its own (selenate only) or as a granular, Se-enriched macronutrient fertilizer supplying nitrogen, phosphorus, potassium or sulfur. Selenium was also applied to leaves at head emergence with, or without, 2% w/v N fertilizers. With grain Se concentrations varying from 0.13–0.84 mg kg−1, soil application of selenate-only was 2–15 times more effective than granular Se-enriched macronutrient fertilizers in raising grain Se concentrations. Co-application of foliar Se with an N carrier doubled the Se concentration in wheat grains compared to the application of foliar Se on its own, the majority of which was in the highly bioavailable selenomethionine fraction. Results from this study demonstrate the possibility of improving the efficacy of Se fertilizers, which could enrich crops with Se without additional application costs in the field.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

Reference47 articles.

1. Schwarz, K. & Foltz, C. M. Selenium as an integral part of factor 3 against dietary necrotic liver degeneration. J. Am. Chem. Soc. 79, 3292–3293 (1957).

2. Rayman, M. P. The importance of selenium to human health. The Lancet 356, 233–241 (2000).

3. Fordyce, F. M., Selenium Deficiency and Toxicity in the Environment. In Essentials of Medical Geology: Revised Edition, Selinus, O., Ed. pp 375–416 (Springer Netherlands: Dordrecht, 2013).

4. WHO Trace elements in human nutrition and health; World Health Organization: Geneva; (1996).

5. Kumssa, D. B. et al. Dietary calcium and zinc deficiency risks are decreasing but remain prevalent. Sci. Rep. 5, 10974 (2015).

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