THE Hongkong Government should eliminate the differences between universities and polytechnics and introduce a uniform tertiary education system. This was suggested by Professor Poon Chung-kwong, the director of Hongkong Polytechnic, at Heung To Middle School's 47th speech day recently. The University and Polytechnic Grants Committee (UPGC) sent representatives to inspect the polytechnic and evaluate its academic standard early this year to decide whether to give it ''self-adjudicating'' status. Although the polytechnic has not heard anything, Professor Poon was confident that it would be granted the status. ''It is important for the polytechnic to be upgraded to university status as the academic achievements of our graduates would be recognised and the morale of our teaching staff would get a boost,'' he said. ''Also, it would correct the public's misconception of the institute.'' The principal, Mr Yeung Yiu-chung, announced that the school introduced a two-year matriculation course to replace the one-year curriculum last September. Mr Yeung also praised the students for their outstanding performance in public examinations. In the 1992 HKCEE, 89.67 per cent of the candidates passed five subjects, and 32.91 per cent of the candidates got Cs or above, the principal said. Thirty-six out of 131 Form 6 graduates got into Chinese University, and 69 entered polytechnics and other tertiary institutes in Hongkong and the mainland. Mr Yeung also said the school's Tsuen Wan branch would soon be moved to Tai Po to give students a better environment to study in. He said the Tai Po site would feature more space and facilities for students to enjoy. This year, there were 209 Form 5 graduates. Seventeen were awarded for their outstanding academic performance or good conduct. Subject awards and service prizes were also given to other outstanding students. After the graduation ceremony, colourful programmes including folk dance, singing and Chinese instrumental music were staged by the students to entertain teachers and guests.