Assoc. Prof. Dr. Rattana Tangwongkit is a lecturer and head of Dept. of Farm Mechanics Faculty of Agriculture, Faculty of Agriculture at Kamphaend Sean (FAKPS), Kasetsart University. Her draduated Ph.D.(Agricultural Systems and Engineering), Asian Institute of Technology, Thailand, 2006. M.S. (Farm Machinery), Asian Institute of Technology, Thailand, 1989. And B.S. (Agriculture), Kasetsart University, Thailand, 1983. Her International Conference is 1) "Drip Irrigation Powered by Solar Cell for Dry Rainfed and No Electricity Area", International Conference and Utility Exhibition 2014 (ICUE 2014)On Green Energy for Sustainable Development, 19 – 21 March 2014, Chonburi, Thailand. 2) "Field Evaluation of a Variable Rate Herbicide Applicator", Agricultural Information Research, 2 – 3 Septemver 2008, Chaina. 3) "Design and Development of a No-tilled Sugarcane Planter Model FM.44 (NRCT-KU)", Proceedings of 41st Kasetsart University Annual Conference, 1 January 2003. 4) "Design and Development of a Rotary Tiller for Mixing Sugarcane Residues (NRCT-KU)", Proceedings of 41st Kasetsart University Annual Conference, 1 January 2003.