Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (1)

Search Parameters:
Keywords = allochthonous origin of Cd

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
18 pages, 2372 KB  
Article
Natural and Anthropogenic Sources of Cadmium in Cacao Crop Soils of Santander, Colombia
by Valentina Joya-Barrero, Carme Huguet and Jillian Pearse
Soil Syst. 2023, 7(1), 12; https://doi.org/10.3390/soilsystems7010012 - 6 Feb 2023
Cited by 13 | Viewed by 5157
Abstract
Elevated cadmium (Cd) levels in cacao products have been detected in a major cacao-producing region of Colombia, with concentrations well above those permitted for export and posing a potential threat to human health. Geochemical and petrographic analyses of fertilizer, soil and rocks from [...] Read more.
Elevated cadmium (Cd) levels in cacao products have been detected in a major cacao-producing region of Colombia, with concentrations well above those permitted for export and posing a potential threat to human health. Geochemical and petrographic analyses of fertilizer, soil and rocks from three farms were used to determine the origin of Cd. Parent rocks were the main source of the Cd in soils, while organic fertilizer may have further contributed to elevated metal content in one farm. High Cd levels in the organic fertilizer were most likely due to bioaccumulation, since it was sourced from animals in the same area. Even though the soil pH range, elevated OM content and the presence of Mn and K diminish bioavailability, the extremely high Cd content in soils results nonetheless in significant uptake by the plants and subsequent accumulation in cocoa beans. Traditional methods to reduce Cd adsorption, such as the addition of calcium, will not be effective in this case. Instead, the selection of cacao species that are naturally low accumulators and amendment with soil microorganisms with mineralization and biotransformation capabilities, as well as testing of fertilizers before application, could all be cost-effective solutions to reduce Cd in the final product. Full article
(This article belongs to the Special Issue Advancements in Soil and Sustainable Agriculture)
Show Figures

Figure 1

Back to TopTop