日本三菱电机公司研制成免耕型碎土插秧机。该机在插秧部件的前端设有碎土装置。作业时只要田间灌一层浅水，便可在田里边碎土边插秧，不需事先耕耙。秧苗移栽后返青期短、生长快、根活力强。它省劳力、工效高、费用低、易于控制水稻生长，提高水稻结实率及千粒重。日研制成免 Japan’s Mitsubishi Electric Corporation developed into no-tillage broken earth transplanter. The machine is equipped with crushing device at the front of planting unit. As long as the field operation irrigation a layer of shallow water, you can crush the edge of the field transplanting, without prior rake. Seedling transplanted back to green short, fast growth, strong root activity. It labor-saving, high efficiency, low cost, easy to control rice growth, improve rice seedling rate and 1000-grain weight. Japan developed into free