Bioscience Methods 2025, Vol.16, No.5, 262-269 http://bioscipublisher.com/index.php/bm 267 weeding, exemplifies how mechanization can streamline multiple agronomic tasks, thereby improving overall efficiency and reducing costs (Abdullah et al., 2020). Additionally, the adaptation of mechanization to the specific needs of sweet potato cultivation, such as the development of ridge-forming equipment, is essential for maximizing yield and ensuring the sustainability of farming practices (Hu et al., 2011). 6.2 Cost benefit analysis The cost-benefit analysis of integrating agronomy and mechanization in sweet potato cultivation reveals significant economic advantages. Mechanization reduces labor costs and increases productivity, which can lead to higher net incomes for farmers. For example, the use of advanced machinery for ridge formation and inter-row cultivation has been shown to enhance yield and reduce labor requirements, resulting in substantial cost savings. Furthermore, the implementation of mechanized systems tailored to the specific conditions of hilly regions can mitigate the challenges posed by small plots and complex terrain, thereby improving the economic viability of sweet potato farming in these areas (Hu et al., 2012). The economic benefits are further supported by studies demonstrating that improved agronomic practices, such as optimized planting densities and fertilization regimes, can significantly increase yields and profitability (Shaheenuzzamn et al., 2014; Markos and Loha, 2016). 6.3 Technological pathways for sustainable development Technological advancements play a pivotal role in the sustainable development of sweet potato cultivation. The integration of mechanization with agronomic practices can lead to more sustainable farming systems by enhancing resource use efficiency and reducing environmental impacts. For instance, the use of anaerobic digestion residues (ADRs) as a fertilizer alternative to traditional mineral fertilizers not only improves soil health but also reduces the reliance on chemical inputs, promoting sustainable agriculture (Nicoletto et al., 2017). Additionally, the development of drought-tolerant sweet potato varieties through traditional and molecular breeding methods can enhance resilience to climate change, ensuring stable yields under adverse conditions (Sapakhova et al., 2023). The adoption of automated systems, such as vertical farming with controlled environmental conditions, further exemplifies how technology can optimize growth conditions and reduce the environmental footprint of sweet potato cultivation (Rumiantsev et al., 2023). These technological pathways, when combined with sound agronomic practices, can significantly contribute to the sustainable development of sweet potato farming in hilly regions. 7 Conclusion and Prospect The advancements in agronomy and mechanization for sweet potato cultivation in hilly regions have shown significant progress, addressing various challenges and introducing innovative solutions. Mechanization has been identified as a crucial factor in improving the efficiency and productivity of sweet potato farming. The development of specialized machinery, such as the 3 In 1 Disc Ridger, has facilitated essential activities like ridge forming, fertilizing, and mechanical weeding, thereby reducing labor costs and increasing yields. Additionally, the integration of anaerobic digestion residues (ADRs) as a fertilization method has demonstrated potential in enhancing sweet potato growth and yield, offering an alternative to traditional mineral fertilizers. Despite these advancements, several challenges remain, particularly in hilly regions with complex terrains and poor soil conditions. The mechanization of sweet potato production in these areas faces constraints due to small plot sizes, diverse cropping systems, and decentralized farming practices. However, the proposed development models and countermeasures tailored to specific community, economic, and natural conditions provide a roadmap for overcoming these obstacles. Future research should focus on further refining and adapting mechanization technologies to suit the unique conditions of hilly regions. This includes the development of more versatile and efficient machinery that can operate on varied slopes and terrains. Additionally, breeding programs aimed at developing sweet potato varieties that are more compatible with mechanical operations and resilient to environmental stresses should be prioritized. The use of ADRs as a sustainable fertilization method warrants further investigation to optimize its application and maximize its benefits. Research should explore the long-term effects of ADRs on soil health and crop
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