日本神奈川大学河野通明教授的《日本有关稻的脱粒方法的改良》一文刊《寻根》1999年第6期，对从日本弥生时代到当代稻谷脱粒工具的发明、改进和逐步改良，作了深入的论述。文中有两件事涉及中国稻作历史，即：“连枷”和“箸”，尚有一辩之必要。一关于连枷，河野先生说 Japan’s Kanagawa University, Professor Tomohisa Kawano “Japan’s threshing method of rice improvement,” a magazine “Roots” 1999 the sixth period, from Japan’s Yayoi era to the invention of contemporary threshing tool, improved and gradually improved, made In-depth discussion. There are two things involved in the history of rice cultivation in China, namely: “flail” and “grubby”, there is a debate on the need. One about flail, Mr. Kono said