<p>The use of Soulbound Tokens (SBTs) alongside blockchain technology offers a promising way to improve identity management, asset validation, and traceability within the agricultural sector. This paper introduces a unique dual blockchain model that integrates a permissioned blockchain built with Go and a public Ethereum network to securely issue and manage non-transferable credentials for farmers. By utilizing the core strengths of SBTs—such as immutability, decentralization, and non-transferability—the proposed system tackles longstanding issues including unreliable identity verification, subsidy misuse, and a lack of transparency throughout the agricultural supply chain. The framework empowers farmers with control over their digital identities while providing stakeholders with trustworthy verification tools, eliminating dependence on centralized bodies. A structured six-phase approach is outlined, covering identity creation, credential checks, SBT issuance, and cross-chain data coordination, supported by an algorithm to maintain secure and scalable operations. Performance testing confirms the architecture delivers strong throughput, low latency, and efficient interoperability between chains, making it a viable solution for real-world agricultural use. The study also reveals improvements in transparency, farmer autonomy, and operational efficiency, and points to future integration of IoT and AI technologies to further support sustainable farming practices. </p>