5) Mitsuhiko Katahira, Hayato Shindo, Masanori Saito, Shinpei Nakagawa, Ryosei Kato, Shojii Yamaya, Motoyasu Natsuga : An investigation into the optimization of rice straw collection system for bioethanol fuel production from reclaimed heavy clay paddy-rice fields in Hachirogata, An ASABE Meeting Presentation Paper Number 11, 2011