Preconditions for modelling technological processes in organic farms, which are oriented to vegetable field production, were presented. Based on empirical data, a rotation model and technical equipment models for farms of the agricultural land area of 10, 20 and 40 ha were developed. In relation to services, they enable full mechanization of production processes. Empirical data, which constitute batch data to models were collected in organic farms, which were included in the research as a part of the project NCBiR [National Centre for Research and Development] NR12-0165-10, titled "Innovative influence of technology and information management supporting system on production efficiency in organic farms." The project was carried out within 2011-2014.