Blockchain technology is becoming increasingly important in agricultural applications, as it addresses several requirements such as improving transparency in food safety, implementing quality control based on the IoT, ensuring traceability of origin, and optimising contract exchanges. Ensuring an ideal balance between efficiency and integrity is critical in the intricate farm-to-fork pipeline that involves untrusted entities such as small-scale farmers, processors, logistics firms, and retailers. The study discusses the potential for blockchain in agriculture and looks closely at the important parts of its design, such as data organization, encryption methods, and various innovative solutions. Current agricultural Blockchain applications are classified and evaluated see, and it shows real use. The text reveals the widespread use of platforms and smart contracts, and demonstrates their application in agricultural development. The report discusses key barriers and examines current efforts and possible solutions. The enhanced post-COVID food supply chain is a prime example of how blockchain technology is significantly improving transparency and efficiency in agriculture.