The use of IoT networks to facilitate agricultural processes has been developing rapidly in recent years, as it makes possible to make these processes more efficient with tools for monitoring and analyzing sensor data and helping farmers to make decisions. However, there are also a number of challenges in implementing IoT networks, like designing, developing, and testing these networks so they are also sufficiently secure. Within this paper, food production processes in agriculture are studied and it is described how various technologies and sensors can be integrated into these processes, which could facilitate the management and execution of these processes. Within this paper, a secure and scalable IoT network is designed and developed with the help of open-hardware prototyping devices and open-source tools to facilitate the food production process by measuring the soil moisture. At the end of the paper, the results are summarized to formulate the benefits of using IoT network in agriculture and to provide recommendations.