## 5 Conclusions  
This study demonstrates that integrating pyrolysis-derived biochar with furrow-diking technology is an effective strategy for improving soil quality in challenging terrains. The biochar produced from poultry feathers and bones showed high nitrogen content and stability, enhancing soil characteristics by improving moisture retention and reducing compaction. The results from applying biochar to compartmentalized furrows indicate a significant improvement in water-holding capacity and soil structure, essential for supporting plant growth in degraded or erosion-prone areas.  
The dual benefits of biochar application--enhanced moisture retention and reduced soil compaction--are particularly valuable for sustainable agriculture in regions facing water scarcity and soil degradation. This approach not only utilizes poultry waste in an environmentally friendly manner but also contributes to a circular agricultural model that addresses waste management and soil restoration simultaneously.  
This technology is a useful tool for carbon sequestration and soil restoration in sustainable agriculture, with the potential to sequester roughly 5-8 metric tons of carbon per hectare over time at an application rate of 10 metric tons of biochar per hectare.  
Conceptualization C.S., F.N., L.V. and M.-R.O.; methodology, C.S. and F.N.; software, C.S. and F.N.; formal analysis, C.S., F.N., L.V., I.V. and M.-R.O.; investigation, C.S., F.N., L.V., I.V. and M.-R.O.; resources, C.S., F.N., L.V., I.V. and M.-R.O.; writing--original draft preparation, C.S., F.N., L.V., I.V. and M.-R.O.; writing--review and editing, C.S. and F.N. project administration, C.S. and F.N., funding acquisition, C.S., F.N. and I.V. All authors have read and agreed to the published version of the manuscript.  
This research was funded by ANCSI, NUCLEU Program Project 9N/01.01.2023 \"Technology for the valuation of vegetable residues in the form of biochar for the improvement of soil  
\begin{table}
\begin{tabular}{c c c c} \hline \hline  & **Electticity Generation** & **Biogas Production** & **Pyrolyzed Poultry Wastes in Agriculture** \\ \hline \multirow{4}{*}{Investment Costs} & Moderate initial costs for small-scale gasification and Stirling engine systems. & Higher upfront investment for digesters, gas storage, and purification systems. & Relatively low costs for pyrolysis units. \\ \cline{2-4}  & Lower operational costs over time. & Moderate maintenance and operational costs. & Minimal post-processing expenses. \\ \hline \multirow{2}{*}{Waste Reduction} & Converts poultry waste into energy, reducing landfill or incineration. & Reduces organic waste volume while producing biogas and nutrient-rich digestate. & Stabilizes poultry waste as biochar, reducing volume and toxicity. \\ \hline \multirow{2}{*}{Scalability} & Best for small- to medium-sized operations with stable heat sources. & Scalable to small, medium, and large operations, but more cost-effective at larger scales. & Scalable for farms of all sizes; feasible for large-scale agriculture. \\ \hline \multirow{2}{*}{Technology Readiness} & \multirow{2}{*}{Mature technology for renewable energy applications.} & Fully mature technology, widely used globally for waste-to-energy solutions. & Immaturity technology, validated for several agricultural soil-improvement applications. \\ \hline \hline \end{tabular}
\end{table}
Table 3: _Cont._quality and partially supported by a grant from the National Program for Research of the National Association of Technical Universities--GNAC ARUT 2023.  
Not applicable.  
**Data Availability Statement:** The original contributions presented in the study are included in the article; further inquiries can be directed to the corresponding author.  
The authors declare no conflicts of interest.