Essential metal and metalloid elements in the Philippi Horticultural area, and their uptake into selected vegetable crops

Soil amendments in the Philippi Horticultural Area (PHA) significantly increase concentrations of essential metals and metalloids, but these elements remain largely retained in the soil with minimal uptake into vegetable crops. The study found that farmyard manures applied as fertilizers were the primary agronomic sources of cobalt (Co), chromium (Cr), manganese (Mn), nickel (Ni), selenium (Se), tin (Sn), and vanadium (V). However, these elements were not effectively transferred to the edible portions of crops, suggesting limited bioavailability. This raises concerns about potential micronutrient deficiencies in surrounding communities, while also highlighting the need for further research into crop selection, nutrient availability, and soil management practices to optimize mineral uptake.

Malan, M., Müller, F., Raitt, L., Cyster, L., & Brendonck, L. (2018). Essential metal and metalloid elements in the Philippi Horticultural area, and their uptake into selected vegetable crops. International Journal of Phytoremediation, 20(5), 471–475. https://doi.org/10.1080/15226514.2017.1365353