Circular economy in action: palm oil kernel biochar and boiler ash enhance growth of Amaranthus viridis via ROS-induced antioxidants modulation
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View abstract on PubMed
Summary
This summary is machine-generated.Oil palm byproducts, biochar and boiler ash, improve Amaranthus viridis growth in saline soils. These amendments enhance plant biomass, pigment content, and antioxidant defenses, mitigating salt stress for better crop resilience.
Area Of Science
- Agricultural Science
- Soil Science
- Environmental Science
Background
- Soil salinization is a major threat to global food security.
- Biochar and boiler ash from oil palm waste show promise for improving saline soils.
- Understanding their impact on crop growth is crucial for sustainable agriculture.
Purpose Of The Study
- To evaluate the effectiveness of biochar and boiler ash as soil amendments for Amaranthus viridis in saline conditions.
- To compare the effects of biochar and boiler ash, with and without NPK fertilizer, on plant growth and physiological responses.
Main Methods
- Amaranthus viridis was grown in saline soil under four treatments: control, NPK fertilizer, NPK + biochar, and NPK + boiler ash.
- Plant growth parameters (height, leaf count/width, biomass), soil properties (EC, pH), pigment content (chlorophylls, carotenoids), oxidative stress markers (H2O2, MDA), and antioxidant defenses (proline, enzymes, secondary metabolites) were measured.
Main Results
- Boiler ash treatment (BAN) resulted in the highest plant height, leaf parameters, and biomass, followed by biochar (BCN).
- Both amendments increased soil pH, while biochar reduced soil EC.
- Pigment content and antioxidant defenses were significantly enhanced by biochar and boiler ash, with reduced oxidative stress markers.
Conclusions
- Biochar and boiler ash, especially when combined with NPK fertilizer, are effective in mitigating salt stress in Amaranthus viridis.
- These byproducts enhance plant growth, physiological resilience, and biochemical defenses in saline environments.
- Utilizing oil palm industry byproducts offers a sustainable approach to managing saline soils and improving crop production.
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