Zulfiqar (2024) Combined application of biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More and silicon nanoparticles enhance soil and wheat productivity under drought: Insights into physiological and antioxidant defense mechanisms. Current Plant Biology. https://doi.org/10.1016/j.cpb.2024.100424

As droughts threaten global agriculture, innovative solutions are essential for food security. Recent research highlights the combined use of biochar (BC) and silicon nanoparticles (SiNP) as an effective approach to boost wheat productivity in semi-arid regions under water stress.

The study tested the impacts of BC (5%) and SiNP (900 mg/L) individually and together on wheat growth during critical stages like tillering, flowering, and grain filling. Results demonstrated that the combination significantly mitigated drought effects, increasing wheat yield by improving soil fertility and plant resilience.

Key Findings:

1. Improved Yield and Growth: BC and SiNP enhanced wheat plant height, grain weight, and biological yield, with combined application achieving the best outcomes. For example, grain yield increased by 17.6% under combined treatment compared to individual applications.

2. Enhanced Physiological Responses: The treatments boosted water-use efficiency and photosynthesis, with SiNP+BC improving stomatal conductance and chlorophyll levels.

3. Antioxidant Activity: Combined treatments reduced oxidative stress in plants by increasing antioxidant enzyme activities, thereby minimizing damage caused by reactive oxygen species (ROS).

4. Soil Benefits: BC significantly enhanced soil organic carbon, nitrogen, and mineralization, making soil more fertile and drought-resistant.

These findings suggest that integrating BC and SiNP can effectively counteract drought stress, enhancing both wheat productivity and soil health. The combined approach holds promise for sustainable agriculture, particularly in water-scarce regions, but further studies are needed to explore broader applications.