Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/123315
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Type: | Journal article |
Title: | Improving the efficacy of selenium fertilizers for wheat biofortification |
Author: | Ramkissoon, C. Degryse, F. da Silva, R.C. Baird, R. Young, S.D. Bailey, E.H. McLaughlin, M.J. |
Citation: | Scientific Reports, 2019; 9(1):19520-1-19520-9 |
Publisher: | Springer Nature |
Issue Date: | 2019 |
ISSN: | 2045-2322 2045-2322 |
Statement of Responsibility: | Chandnee Ramkissoon, Fien Degryse, Rodrigo C. da Silva, Roslyn Baird, Scott D. Young, Elizabeth H. Bailey, Mike J. McLaughlin |
Abstract: | Increasing 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. |
Keywords: | Triticum Selenium Sulfur Nitrogen Phosphorus Fertilizers Osmosis Seedlings Biofortification |
Rights: | © The Author(s) 2019. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
DOI: | 10.1038/s41598-019-55914-0 |
Published version: | http://dx.doi.org/10.1038/s41598-019-55914-0 |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 4 |
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hdl_123315.pdf | Published Version | 1.2 MB | Adobe PDF | View/Open |
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