2[1] Robert P C. Precision Agriculture: An Information Revolution in Agriculture, Agriculture Outlook Forum 1999.1～5.
3[2] Robert P C, Rust R H, Larson W E. Preface. Proc-eedings of The 3rd International Conference on Precision Agriculture, 1996, pxvii.
4[3] Akridge J T, Whipker L D. Precision Agricultural Se-rvices and Enhanced Seed Dealership Survey Results. Center for Agricultural Business. Purdue University Staff Paper，1998 No. 98～11.
5[4] Daberkow S G, McBride W D. Adoption of Precision Agriculture Technologies by U.S. Corn Producers. Proceedings of the 4th International Conference on Precision Agriculture, P C Robert et al.(ed.) St. Paul, MN July 19～22, 1998. ASA,CSSA,SSSA: Madison, WI. 1821～1832Z
6[5] Robert P C, Rust R H, Larson W E. Preface. Proc-eedings of Site-Specific Management for Agriculture Systems. The 2nd International Conference on Research and Development Issues in Site-Specific Crop Management, 1994, ppⅩⅢ-ⅩⅣ.
7[6] Yield Map Interpretation Basic Principles, Precision Agriculture Center, Dept of Soil, Water and Climate, University of Minnesota, Nov，1997. 1～24.
8[7] Gary L Wagner. Precision Agriculture on the Farm. A W G Farms Inc. Crookston, MN, Aug.5, 1999, 17.
9[1]Subramanian V,Burks T F,Arroyo A A.Development of machine vision and laser radar based autonomous vehicle guidance systems for citrus grove navigation[J].Computers and Electronics in Agriculture,2006,53(2):130-143.
10[2]Scarlett A J.Integrated control of agricultural tractor and implements:a review of potential opportunities relating to cultivation and crop establishment machinery[J].Computers and Electronics in Agricuhure,2001,30(1-3):167-191.
