A recent article (Dai et al., 2017) reviewed how biochars can be used to decrease soil acidity. Approximately 50% of global arable land has a pH value < 5.5 and is considered acid. Soil acidification occurs by:
Removal of farm products; and
Application of ammonium-based fertilizers.
Soil acidity increases toxic metal availability, especially aluminum and manganese, and reduce nutrient availability including phosphorus, base cations (potassium, calcium, magnesium), and molybdenum.
Can Biochar Help Manage the Fate of Veterinary Antibiotics in Livestock Farming?
In a recent review article by Tasho and Cho (2016) on the fate of veterinary antibiotics in livestock farming, it was noted that these chemicals are relatively persistence in the environment. Limiting the movement of these biosolids in the environment can be a challenge because of the varying physiological interactions. Electron irradiation and supervised inoculation of beneficial microorganisms have been proposed as effective remediation strategies.
Biochar and Antibiotics
Mitchell et al. (2015) reviewed biochar as a strategy to sequester antibiotic residues in the environment. Twenty-seven different biochars found that matrial prepared at higher pyrolysis temperatures (>500˚C) absorbed the antibiotics with greater efficiency compared with lower preparation temperatures. Continue reading Biochar and Antibiotics in Soil→