This unit provides students with an understanding of the environmental, sustainability and legal issues surrounding the Australian grains industry. Topics include the ecology and sustainability of grain production, crop and pasture rotations, environmental impacts and their management, legal issues associated with landuse, and property management planning. Students will be required to attend the equivalent of a 4-day residential school to cover practical aspects of the unit. GRNS 502 is based on the undergraduate unit GRNS 302 with additional load consisting of extra questions on assignments and examinations and candidates for GRNS 502 will be expected to show a greater level of understanding of the unit material than that required for GRNS 302.