Can biochar help reduce our reliance on chemical fertilizers? This research investigates the potential of nutrient-enriched biochar (NEBC) to improve soil fertility and boost canola crop growth, offering a more sustainable approach to agriculture. The study explores the effects of NEBC on soil properties and canola plant growth in Australian soils. A pot experiment compared NEBC to biosolid biochar and chemical fertilizers. Results showed that NEBC and BSBC lowered soil pH, increased electrical conductivity, and enhanced phosphorus and potassium availability, ultimately improving canola growth. Biochar also boosted dehydrogenase enzyme activity, indicating improved soil health. However, high nutrient content in NEBC reduced seed germination, suggesting the need for optimization. These findings demonstrate that NEBC and BSBC can be valuable soil amendments for canola production. The increased nutrient availability and improved soil properties offer a promising alternative to chemical fertilizers, promoting sustainable agriculture. Further research is needed to optimize the application rate of NEBC to maximize its benefits for soil fertility and crop productivity, while minimizing potential negative impacts on seed germination.
Published in the Journal of Soil Science and Plant Nutrition, this research aligns with the journal's focus on sustainable agriculture and plant health. The study contributes to the ongoing investigation of biochar's role in soil amendment and crop production, addressing concerns about soil degradation and the environmental impacts of chemical fertilizers. It provides valuable insights for researchers and practitioners seeking to improve agricultural practices through innovative and sustainable methods.