Festival of the new rice. A harvest festival now celebrated on October 15-17th at both shrines of the Ise jingu, the imperial household (see Daijosai) and at the same time in virtually every shrine in Japan. Newly-ripened grains of rice from the shinden (sacred rice-fields) are offered to the kami.
See Nenchu gyoji.
A Popular Dictionary of Shinto. Brian Bocking.