Not later than the twenty-fifth day of February each borough board shall submit a comprehensive statement on the budget priorities of the borough to the mayor, council, and director of management and budget. Each borough board, in the preparation of this statement, shall, upon adequate public notice, hold one or more public hearings on the preliminary budget, to obtain the views and recommendations of the community boards within the borough, residents of the borough and others with substantial interests in the borough, on the proposals contained in the preliminary budget and on the capital and service needs of the borough. Officers of agencies, when requested by the borough board, shall appear and be heard.