This paper identifies the application of Blockchain technology in the Agricultural supply chain to address transparency, security, and traceability challenges. The systems defined in earlier papers often lack scalability. Existing solutions in blockchain struggle to address the increasing demands of global agricultural distribution, primarily due to prohibitive costs and excessive energy consumption. After reviewing the existing literature, this study highlights the integration of Blockchain with emerging technologies and also the limitations faced when integrating these technologies. This review further introduces the Internet Computer Protocol (ICP) as a potential solution, offering a decentralized framework with faster transactions, reduced energy requirements, and upgradeable smart contracts. A proposed multi-layer architecture for agricultural traceability using ICP demonstrates how such a system can enhance efficiency while addressing scalability and computational constraints. The model is substantiated by implementation results of all layers, demonstrating improved transaction throughput and reduced energy consumption compared to existing systems. This paper discusses the potential of blockchain technology in changing the agricultural supply chain for the better, while also highlighting the need for innovative frameworks to overcome practical implementation challenges.