Field application of biochar-based amendments for safe crop production in karst paddy with a high geological background: Unraveling Cd-Se dynamics
The global prevalence of geogenically derived cadmium (Cd) enrichment poses significant risks to agricultural sustainability and food security. Micronutrients such as selenium (Se) usually co-occur with Cd in such regions but exhibit low bioavailability in soils, further causing a “hidden hunger” of nutrient depletion...