The problem of training of specialists with a certain set of competencies comes as a result of the process of globalization, technology development and world economic competition. The formation of a social and ecological competence plays an important role in specialists' training, since sustainable development includes environmental, economic and social components. We believe that the university subject "Foreign language" has sufficient potential for the formation and development of social and ecological competence. The major objective of our research is to present a model of the English course ecologization in training of specialists for agrarian economy on the example of Omsk State Agrarian University. The study was carried out within the framework of a competence-based approach. The following conceptual principles became essential for this work: the concept of sustainable development; the principle of ecologization of humanitarian, socio-economic and natural science cycles subjects; the principle of continuity and integrity of the ecological component within the disciplines of environmental cycle; the principle of reflexive activity. We present a three-component model of the foreign language course ecologization which includes cognitive, motivation and activity elements. A case study method was chosen as an effective educational technology. It can be used in studying interpersonal communication (everyone's contribution to solving environmental problems), intercultural communication (comparative analysis of environmental problems in different countries), academic communication (environmental activity at the university), and professional communication (agriculture and ecology, sustainable development). The case method is aimed at acquiring knowledge, developing practical skills, and the system of students' ecological values.