1.5 years. The College of Continuing Education of Hunan Agricultural University, formerly known as the Agricultural Cadre Training Department of Hunan Agricultural University, was established in 1982, and is responsible for the management of adult correspondence, evening classes and agricultural cadre training courses. School of Continuing Education, Hunan Agricultural University 1.5 years. It is a secondary department of Hunan Agricultural University, which mainly trains agricultural cadres and technical personnel.