4Machinery Management [M] . John Deere Publishing, 1992.
5农业机械统计报表[R].江苏省农垦集团总公司,2002.
6Isik, A., Sabanci, A. A computer model to select optimum size of farm machinery and power for mechanization planning [J] . Agri- cultural Mechanization in Asia, Africa and Latin America. 1993, 24 (3) : 68-72.
7Ahmed, M.H. Mechanization of kenaf production at Abu Naama Scheme in Sudan [J] . Agricultural Mechanization in Asia, Africa and Latin America, 1989, 20 (3) : 61-67.
8Gao Huan Wen, Hunt D R. Optimum combine fleet selection with power-based model [J] . Trans.ASAE, 1985, 28 (2) : 364-368.
9Hetz HE. Farm machinery needs according to cultivated area [J]. Tillage intensity and crop rotation, 1986, 14 (2) :67-77.
10Hunt, D. Farm power and machinery management [M] . Iowa State University Press, 1983.
