All Outputs (107)

Increasing zinc concentration in maize grown under contrasting soil types in Malawi through agronomic biofortification: Trial protocol for a field experiment to detect small effect sizes (2020)
Journal Article

The prevalence of micronutrient deficiencies including zinc (Zn) is widespread in Malawi, especially among poor and marginalized rural populations. This is due to low concentrations of Zn in most staple cereal crops and limited consumption of animal... Read More about Increasing zinc concentration in maize grown under contrasting soil types in Malawi through agronomic biofortification: Trial protocol for a field experiment to detect small effect sizes.

Agronomic iodine biofortification of leafy vegetables grown in Vertisols, Oxisols and Alfisols (2020)
Journal Article

© 2020, The Author(s). Iodine deficiency disorders (IDD) in sub-Saharan African countries are related to low dietary I intake and generally combatted through salt iodisation. Agronomic biofortification of food crops may be an alternative approach. Th... Read More about Agronomic iodine biofortification of leafy vegetables grown in Vertisols, Oxisols and Alfisols.

Effect of soil properties on time-dependent fixation (ageing) of selenate (2020)
Journal Article

© 2020 Elsevier B.V. Previous biofortification studies have established that the residual effect of added selenium (Se) fertilisers on second-season crops is minimal. To explore the fate of exogenous Se in soil, chemical and biological methods were e... Read More about Effect of soil properties on time-dependent fixation (ageing) of selenate.

Site-Specific Factors Influence the Field Performance of a Zn-Biofortified Wheat Variety (2020)
Journal Article

© Copyright © 2020 Zia, Ahmed, Bailey, Lark, Young, Lowe, Joy, Wilson, Zaman and Broadley. Background: Biofortification of wheat with zinc (Zn) through breeding and agronomy can reduce Zn deficiencies and improve human health. “High-Zn” wheat varieti... Read More about Site-Specific Factors Influence the Field Performance of a Zn-Biofortified Wheat Variety.

Kinetics of uranium(VI) lability and solubility in aerobic soils (2020)
Journal Article

© 2020 Elsevier Ltd Uranium may pose a hazard to ecosystems and human health due to its chemotoxic and radiotoxic properties. The long half-life of many U isotopes and their ability to migrate raise concerns over disposal of radioactive wastes. This... Read More about Kinetics of uranium(VI) lability and solubility in aerobic soils.

Selenium Deficiency Is Widespread and Spatially Dependent in Ethiopia (2020)
Journal Article

: Selenium (Se) is an essential element for human health and livestock productivity. Globally, human Se status is highly variable, mainly due to the influence of soil types on the Se content of crops, suggesting the need to identify areas of deficien... Read More about Selenium Deficiency Is Widespread and Spatially Dependent in Ethiopia.

Spatial prediction of the concentration of selenium (Se) in grain across part of Amhara Region, Ethiopia (2020)
Journal Article

Grain and soil were sampled across a large part of Amhara, Ethiopia in a study motivated by prior evidence of selenium (Se) deficiency in the Region's population. The grain samples (teff, Eragrostis tef, and wheat, Triticum aestivum) were analysed fo... Read More about Spatial prediction of the concentration of selenium (Se) in grain across part of Amhara Region, Ethiopia.

Selenium deficiency risks in sub-Saharan African food systems and their geospatial linkages (2020)
Journal Article

Selenium (Se) is an essential element for human health. However, our knowledge of the prevalence of Se deficiency is less than for other micronutrients of public health concern such as iodine, iron and zinc, especially in sub-Saharan Africa (SSA). St... Read More about Selenium deficiency risks in sub-Saharan African food systems and their geospatial linkages.

Assessment of chromium species dynamics in root solutions using isotope tracers (2020)
Journal Article

© 2020 Background: Chromium (Cr) exists in the environment in two chemical forms; CrIII is an essential micronutrient for glucose and lipid metabolism, whereas CrVI is toxic and a recognised carcinogen through inhalation. Numerous studies have attemp... Read More about Assessment of chromium species dynamics in root solutions using isotope tracers.

Selenium biofortification of crops on a Malawi Alfisol under conservation agriculture (2020)
Journal Article

© 2020 Elsevier B.V. Biofortification with selenium (Se) may rely on rapid uptake by crops, following application, to offset progressive fixation into unavailable organic forms of Se in soil. A biofortification study was conducted on an Alfisol withi... Read More about Selenium biofortification of crops on a Malawi Alfisol under conservation agriculture.

Reconnaissance sampling and determination of hexavalent chromium in potentially-contaminated agricultural soils in Copperbelt Province, Zambia (2020)
Journal Article

© 2020 The distribution of elemental species of chromium (Cr) in potentially-contaminated soil samples warrants investigation due to the differing mobilities and toxicities of trivalent [Cr(III)] and hexavalent chromium [(Cr(VI)]. In addition, the po... Read More about Reconnaissance sampling and determination of hexavalent chromium in potentially-contaminated agricultural soils in Copperbelt Province, Zambia.

The impact of long-term biosolids application (>100 years) on soil metal dynamics (2020)
Journal Article

© 2020 Elsevier B.V. Biosolids application to arable land is a common, and cost-effective, practice but the impact of prolonged disposal remains uncertain. We evaluated the dynamics of potentially toxic elements (PTEs) at a long-established ‘dedicate... Read More about The impact of long-term biosolids application (>100 years) on soil metal dynamics.

Geographical and seasonal variation in Iodine content of cow’s milk in the UK and consequences for the consumer´s supply (2020)
Journal Article

Background. Dairy products provide a crucial source of dietary iodine for the majority of the UK population, contributing approximately 30-40 % of daily intake. Fluctuations in the iodine content of purchased milk both seasonally and annually implies... Read More about Geographical and seasonal variation in Iodine content of cow’s milk in the UK and consequences for the consumer´s supply.

Short-Term Iodine Dynamics in Soil Solution (2020)
Journal Article

Assessing the reactions of iodine (I) in soil is critical to evaluate radioiodine exposure and understand soil-to-crop transfer rates. Our mechanistic understanding has been constrained by method limitations in assessing the dynamic interactions of i... Read More about Short-Term Iodine Dynamics in Soil Solution.

Can selenium deficiency in Malawi be alleviated through consumption of agro-biofortified maize flour? Study protocol for a randomised, double-blind, controlled trial (2019)
Journal Article

© 2019 The Author(s). Background: Micronutrient deficiencies including selenium (Se) are widespread in Malawi and potentially underlie a substantial disease burden, particularly among poorer and marginalised populations. Concentrations of Se in stapl... Read More about Can selenium deficiency in Malawi be alleviated through consumption of agro-biofortified maize flour? Study protocol for a randomised, double-blind, controlled trial.

Improving the efficacy of selenium fertilizers for wheat biofortification (2019)
Journal Article

© 2019, The Author(s). 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... Read More about Improving the efficacy of selenium fertilizers for wheat biofortification.

Using chemical fractionation and speciation to describe uptake of technetium, iodine and selenium by Agrostis capillaris and Lolium perenne (2019)
Journal Article

© 2019 Elsevier Ltd To understand the dynamic mechanisms governing soil-to-plant transfer of selenium (Se), technetium-99 (99Tc) and iodine (I), a pot experiment was undertaken using 30 contrasting soils after spiking with 77Se, 99Tc and 129I, and in... Read More about Using chemical fractionation and speciation to describe uptake of technetium, iodine and selenium by Agrostis capillaris and Lolium perenne.

Agronomic biofortification of leafy vegetables grown in an Oxisol, Alfisol and Vertisol with isotopically labelled selenium (77Se) (2019)
Journal Article

© 2019 Elsevier B.V. Selenium biofortification of crops is a proven technology for improving dietary nutrition. This study used isotopically labelled selenate (>99% enriched 77Se) to assess uptake and Se availability to two green vegetables, Brassica... Read More about Agronomic biofortification of leafy vegetables grown in an Oxisol, Alfisol and Vertisol with isotopically labelled selenium (77Se).

Kinetics of 99Tc speciation in aerobic soils (2019)
Journal Article

© 2019 The Authors Technetium-99 is a significant and long-lived component of spent nuclear fuel relevant to long-term assessments of radioactive waste disposal. Whilst 99Tc behaviour in poorly aerated environments is well known, the long-term bioava... Read More about Kinetics of 99Tc speciation in aerobic soils.

Urine selenium concentration is a useful biomarker for assessing population level selenium status (2019)
Journal Article

Plasma selenium (Se) concentration is an established population level biomarker of Se status, especially in Se-deficient populations. Previously observed correlations between dietary Se intake and urinary Se excretion suggest that urine Se concentrat... Read More about Urine selenium concentration is a useful biomarker for assessing population level selenium status.